0001647088-24-000030 | 10-K | XBRL Viewer | Willscot Mobile Mini Holdings Corp

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Goodwill and Intangible Assets - Schedule of Goodwill Activity (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 1,011,429	$ 1,013,601
Effects of movements in foreign exchange rates	704	(2,172)
Additions from acquisitions	164,502
Goodwill, end of period	1,176,635	1,011,429
Modular
Goodwill [Roll Forward]
Goodwill, beginning of period	518,877	521,049
Effects of movements in foreign exchange rates	704	(2,172)
Additions from acquisitions	61,111
Goodwill, end of period	580,692	518,877
Storage
Goodwill [Roll Forward]
Goodwill, beginning of period	492,552	492,552
Effects of movements in foreign exchange rates	0	0
Additions from acquisitions	103,391
Goodwill, end of period	$ 595,943	$ 492,552

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References + Details

Derivatives - Schedule of Impact of Interest Rate Swap and Foreign currency contract on Other Comprehensive Income, AOCI, and Statement of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Interest rate swap
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI	$ 15,901	$ 4,669	$ 11,677
Interest rate swap \| Interest expense, net
Derivative Instruments, Gain (Loss) [Line Items]
(Gain) loss reclassified from AOCI into income	(11,550)	4,530	$ 12,001
Foreign currency contract
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in OCI	$ 7,715	$ 930

Summary of Significant Accounting Policies - Schedule of Property, Plant and Equipment (Details)	Dec. 31, 2023
Minimum \| Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated Useful Life	10 years
Minimum \| Vehicles, machinery, and equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Minimum \| Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Minimum \| Software
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Maximum \| Buildings and leasehold improvements
Property, Plant and Equipment [Line Items]
Estimated Useful Life	40 years
Maximum \| Vehicles, machinery, and equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life	30 years
Maximum \| Furniture and fixtures
Property, Plant and Equipment [Line Items]
Estimated Useful Life	10 years
Maximum \| Software
Property, Plant and Equipment [Line Items]
Estimated Useful Life	10 years

Business Combinations and Acquisitions

12 Months Ended

Dec. 31, 2023

Business Combination and Asset Acquisition [Abstract]

Business Combinations and Acquisitions

Business Combinations

During the year ended December 31, 2023, the Company acquired a national provider of cold storage solutions, which consisted primarily of approximately 2,200 climate-controlled containers and refrigerated storage trailers; a regional modular space manufacturing and leasing business, which consisted primarily of approximately 1,300 modular leasing units; and a national provider of premium large clearspan structures.

The aggregate purchase price paid for these acquisitions and the opening balance sheet were as follows:


(in thousands)
Purchase Price:
Cash used in acquisitions, net of cash acquired of $3,245	$	411,593
Allocated as follows:
Trade receivables	8,452		(a)
Inventories	2,017
Deferred tax assets	931
Rental equipment	214,936		(b)
Property, plant, and equipment	3,376
Operating lease assets	5,028
Intangibles - customer relationships	26,408		(b)
Other assets	3,669
Accounts payable	(276)
Deferred revenue	(11,635)
Operating lease liabilities	(3,633)
Other liabilities	(2,182)
Total identifiable net assets	247,091
Goodwill	164,502
Total net assets acquired	$	411,593

(a)As of the acquisition date, the fair value of accounts receivable was $8.5 million, and the gross contractual amount was $11.5 million. The Company analyzed information available at the time of acquisition in estimating uncollectible receivables and the fair value of acquired receivables.

(b)The initial fair value assumptions used included preliminary estimates of the replacement cost of rental equipment, discount rates, royalty rates, and customer attrition rates which have been updated in preparing these valuations and the underlying assets have been adjusted from those previously recorded accordingly. Rental equipment and intangible assets were increased by approximately $12.9 million and $26.4 million from amounts previously reported, respectively.

Goodwill recognized is attributable to expected operating synergies, assembled workforces, and the going concern value of the acquired businesses. Goodwill recorded for these acquisitions is deductible for tax purposes. Revenue and earnings from business combinations are not available, as the businesses are integrated into the Company's centralized financial and operational processes following acquisition.

Asset Acquisitions

During 2023, the Company acquired certain assets and liabilities of five smaller entities, which consisted primarily of approximately 1,800 storage units and 700 modular units for $150.0 million in cash. As of the acquisition dates, the fair value of rental equipment acquired was $147.6 million.

Integration Costs

The Company records integration costs related to business combinations, asset acquisitions and the Merger within selling, general and administrative ("SG&A") expense. The Company incurred $10.4 million, $15.5 million and $28.4 million in integration costs for business combinations, asset acquisitions and the Merger for the years ended December 31, 2023, 2022 and 2021, respectively.

Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Schedule of Segment Reporting Information, by Segment

The following tables set forth certain information regarding each of the Company’s reportable segments for the years ended December 31, 2023, 2022, and 2021, respectively.


	Year Ended December 31, 2023
(in thousands)	Modular		Storage		Unallocated Costs		Total
Revenues:
Leasing and services revenue:
Leasing	$	1,137,685	$	696,250			$	1,833,935
Delivery and installation	283,433		153,746				437,179
Sales revenue:
New units	41,777		6,352				48,129
Rental units	32,771		12,753				45,524
Total revenues	1,495,666		869,101				2,364,767

Costs:
Cost of leasing and services:
Leasing	311,501		86,966				398,467
Delivery and installation	224,671		92,446				317,117
Cost of sales:
New units	23,599		2,840				26,439
Rental units	15,800		7,341				23,141
Depreciation of rental equipment	219,869		45,864				265,733
Gross profit	$	700,226	$	633,644			$	1,333,870
Other selected data:
Adjusted EBITDA from continuing operations	$	598,354	$	463,111			$	1,061,465
Selling, general and administrative expense	$	329,068	$	217,604	$	49,418	$	596,090
Purchases of rental equipment and refurbishments	$	184,993	$	41,612			$	226,605


	Year Ended December 31, 2022
(in thousands)	Modular		Storage		Unallocated Costs		Total
Revenues:
Leasing and services revenue:
Leasing	$	992,316	$	629,374			$	1,621,690
Delivery and installation	272,749		156,403				429,152
Sales revenue:
New units	33,985		6,353				40,338
Rental units	42,983		8,460				51,443
Total Revenues	1,342,033		800,590				2,142,623

Costs:
Cost of leasing and services:
Leasing	273,233		103,635				376,868
Delivery and installation	221,784		100,852				322,636
Cost of sales:
New units	20,475		3,536				24,011
Rental units	21,271		5,636				26,907
Depreciation of rental equipment	221,433		35,286				256,719
Gross profit	$	583,837	$	551,645			$	1,135,482
Other selected data:
Adjusted EBITDA from continuing operations	$	508,343	$	375,531	$	—	$	883,874
Selling, general and administrative expense	$	304,937	$	215,732	$	46,738	$	567,407
Purchases of rental equipment and refurbishments	$	279,079	$	118,297	$	—	$	397,376


	Year Ended December 31, 2021
(in thousands)	Modular		Storage		Unallocated Costs		Total
Revenues:
Leasing and services revenue:
Leasing	$	827,677	$	424,813			$	1,252,490
Delivery and installation	213,818		107,311				321,129
Sales revenue:
New units	40,322		6,671				46,993
Rental units	38,666		13,702				52,368
Total revenues	1,120,483		552,497				1,672,980

Costs:
Cost of leasing and services:
Leasing	219,462		63,114				282,576
Delivery and installation	191,011		76,522				267,533
Cost of sales:
New units	27,386		3,962				31,348
Rental units	20,163		7,867				28,030
Depreciation of rental equipment	190,805		27,985				218,790
Gross profit	$	471,656	$	373,047			$	844,703
Other selected data:
Adjusted EBITDA from continuing operations	$	404,577	$	245,027	$	—	$	649,604
Selling, general and administrative expense	$	256,168	$	160,300	$	63,939	$	480,407
Purchase of rental equipment and refurbishments	$	187,495	$	45,426	$	—	$	232,921

The following tables present a reconciliation of the Company’s Income from continuing operations to Adjusted EBITDA for the years ended December 31, 2023, 2022, and 2021, respectively:


	Year Ended December 31,
(in thousands)	2023		2022		2021
Income from continuing operations	$	341,844	$	276,341	$	114,895
Income tax expense from continuing operations	126,575		88,863		36,528
Loss on extinguishment of debt	—		—		5,999
Fair value loss on common stock warrant liabilities	—		—		26,597
Interest expense	205,040		146,278		116,358
Depreciation and amortization	338,654		319,099		280,567
Currency losses, net	6,754		886		427
Restructuring costs, lease impairment expense and other related charges	22		168		14,754
Transaction costs	2,259		25		1,375
Integration costs	10,366		15,484		28,410
Stock compensation expense	34,486		29,613		18,728
Other	(4,535)		7,117		4,966
Adjusted EBITDA from continuing operations	$	1,061,465	$	883,874	$	649,604

Schedule of Reconciliation of Assets from Segment to Consolidated

Assets related to the Company’s reportable segments include the following:


(in thousands)	Modular		Storage		Total
As of December 31, 2023:
Goodwill	$	580,692	$	595,943	$	1,176,635
Intangible assets, net	$	126,620	$	293,089	$	419,709
Rental equipment, net	$	2,141,848	$	1,239,467	$	3,381,315
As of December 31, 2022:
Goodwill	$	518,877	$	492,552	$	1,011,429
Intangible assets, net	$	125,000	$	294,125	$	419,125
Rental equipment, net	$	2,004,055	$	1,073,232	$	3,077,287

Fair Value Measures - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
2031 Secured Notes \| Senior Notes
Business Acquisition [Line Items]
Unamortized debt issuance costs	$ 6.3
Revolving Credit Facility \| Asset Based Liability Facility Due 2027 \| Line of Credit
Business Acquisition [Line Items]
Unamortized debt issuance costs		$ 31.8
Revolving Credit Facility \| 2025 Secured Notes \| Senior Notes
Business Acquisition [Line Items]
Unamortized debt issuance costs		6.2
Revolving Credit Facility \| 2028 Secured Notes \| Senior Notes
Business Acquisition [Line Items]
Unamortized debt issuance costs		$ 6.5

Income Taxes - Schedule of Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income from continuing operations before income tax
US	$ 444,557	$ 341,412	$ 137,922
Foreign	23,862	23,792	13,501
Income from continuing operations before income tax	468,419	365,204	151,423
US Federal statutory income tax expense	98,368	76,693	31,798
Effect of tax rates in foreign jurisdictions	1,434	1,085	743
State income tax expense, net of federal benefit	25,016	16,917	1,130
Valuation allowances	(815)	(6,907)	(2,595)
Non-deductible (non-taxable) items	775	1,147	(410)
Non-deductible executive compensation	2,014	1,258	2,309
Non-deductible remeasurement of common stock warrant liabilities	0	0	5,585
Uncertain tax positions	(523)	(804)	(11,748)
Tax law changes (excluding valuation allowance)	(50)	(94)	8,411
Other	356	(432)	1,305
Total income tax expense from continuing operations	$ 126,575	$ 88,863	$ 36,528
Effective income tax rate	27.02%	24.33%	24.12%

Summary of Significant Accounting Policies - Schedule of Activity in Allowance for Doubtful Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Allowance for Credit Loss [Roll Forward]
Balance at beginning of period	$ 57,048	$ 45,773	$ 28,105
Provision for credit losses, net of recoveries	49,650	34,881	37,469
Write-offs	(25,182)	(23,705)	(19,777)
Foreign currency translation and other	140	99	(24)
Balance at end of period	81,656	57,048	45,773
Provision for credit losses recorded as a reduction to revenue for the provision of specific receivables whole collection is not considered probable	$ 25,200	$ 23,700	$ 19,800

- Definition

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

+ References + Details

Debt - Schedule of Finance Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Finance Leases	$ 117,099	$ 74,370

Income Taxes - Schedule of Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Unrecognized tax benefits – January 1,	$ 43,627	$ 44,314	$ 54,494
Increases based on tax positions related to prior period	0	0	9
Decrease from expiration of statute of limitations	(493)	(687)	(10,189)
Unrecognized tax benefits – December 31,	$ 43,134	$ 43,627	$ 44,314

Rental Equipment, net (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total rental equipment	$ 4,755,443	$ 4,250,416
Less: accumulated depreciation	(1,374,128)	(1,173,129)
Rental equipment, net	3,381,315	3,077,287
Modular space units
Property, Plant and Equipment [Line Items]
Total rental equipment	3,541,451	3,197,779
Portable storage units
Property, Plant and Equipment [Line Items]
Total rental equipment	1,009,059	849,193
Value added products
Property, Plant and Equipment [Line Items]
Total rental equipment	$ 204,933	$ 203,444

Fair Value Measures

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Fair Value Measures

The fair value of financial assets and liabilities are included at the amount at which the instrument could be exchanged in a current transaction between willing parties, other than in a forced or liquidation sale.

The Company utilizes the suggested accounting guidance for the three levels of inputs that may be used to measure fair value:


Level 1 -			Observable inputs such as quoted prices in active markets for identical assets or liabilities;
Level 2 -			Observable inputs, other than Level 1 inputs in active markets, that are observable either directly or indirectly; and
Level 3 -			Unobservable inputs for which there is little or no market data, which require the reporting entity to develop its own assumptions

The Company has assessed that the fair value of cash and short-term deposits, trade receivables, trade payables, capital lease and other financing obligations, and other current liabilities approximate their carrying amounts.

The following table shows the carrying amounts and fair values of financial assets and liabilities, including their levels in the fair value hierarchy:


	December 31, 2023								December 31, 2022
	Carrying Amount		Fair Value						Carrying Amount		Fair Value
(in thousands)			Level 1		Level 2		Level 3				Level 1		Level 2		Level 3
ABL Facility	$	1,929,259	$	—	$	1,956,011	$	—	$	1,988,176	$	—	$	2,020,000	$	—
2025 Secured Notes	522,735		—		527,021		—		520,350		—		526,800		—
2028 Secured Notes	494,500		—		474,285		—		493,470		—		450,135		—
2031 Secured Notes	493,709		—		528,075		—		—		—		—		—
Total	$	3,440,203	$	—	$	3,485,392	$	—	$	3,001,996	$	—	$	2,996,935	$	—

As of December 31, 2023, the carrying values of the ABL Facility, the 2025 Secured Notes, the 2028 Secured Notes, and the 2031 Secured Notes included $26.8 million, $3.8 million, $5.5 million, and $6.3 million, respectively, of unamortized debt issuance costs, which were presented as a direct reduction of the corresponding liability. As of December 31, 2022, the carrying values of the ABL Facility, the 2025 Secured Notes, and the 2028 Secured Notes included $31.8 million, $6.2 million, and $6.5 million, respectively, of unamortized debt issuance costs which were presented as a direct reduction of the corresponding liability.

There were no transfers of financial instruments between the three levels of the fair value hierarchy during the years ended December 31, 2023 and 2022. The carrying value of the ABL Facility, excluding debt issuance costs, approximates fair value as the interest rates are variable and reflective of market rates. The fair values of the 2025 Secured Notes, the 2028 Secured Notes, and the 2031 Secured Notes are based on their last trading price at the end of each period obtained from a third party. The location and the fair value of derivative assets and liabilities in the consolidated balance sheet are disclosed in Note 14.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Discontinued Operations - Schedule of Reconciliation of Adjusted EBITDA (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations	$ 134,613	$ 63,199	$ 45,249
Gain on sale of discontinued operations	176,078	35,456	0
Income tax expense from discontinued operations	45,468	35,725	13,018
Interest expense	205,040	146,278	116,358
Currency losses, net	6,754	886	427
Adjusted EBITDA from discontinued operations	1,061,465	883,874	649,604
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations		63,199	45,249
Income tax expense from discontinued operations		35,725	13,018
Income from discontinued operations before income tax and gain on sale		63,468	58,267
Interest expense		1,301	1,629
Currency losses, net		138	121
Adjusted EBITDA from discontinued operations		85,750	90,789
Tank and Pump \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations		59,101	14,633
Gain on sale of discontinued operations		35,456	0
Income tax expense from discontinued operations		843	5,277
Income from discontinued operations before income tax and gain on sale		24,488	19,910
Interest expense		512	779
Depreciation and amortization		14,248	23,685
Currency losses, net		0	0
Restructuring costs, lease impairment expense and other related charges		0	2
Integration costs		0	14
Stock compensation expense		18	222
Other		(2,250)	(2,862)
Adjusted EBITDA from discontinued operations		37,016	41,750
UK Storage Solutions \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations	134,243	4,098	30,616
Gain on sale of discontinued operations	175,708	0	0
Income tax expense from discontinued operations	45,468	34,882	7,741
Income from discontinued operations before income tax and gain on sale	4,003	38,980	38,357
Interest expense	56	789	850
Depreciation and amortization	0	10,160	11,315
Currency losses, net	0	138	121
Stock compensation expense	(196)	197	39
Other	261	(1,530)	(1,643)
Adjusted EBITDA from discontinued operations	$ 4,124	$ 48,734	$ 49,039

Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Inventory Disclosure [Abstract]
Raw materials	$ 43,071	$ 38,611
Finished units	4,335	2,419
Inventories	$ 47,406	$ 41,030

Income Taxes - Schedule of Income Loss Carryforwards (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Operating Loss Carryforwards [Line Items]
Loss Carryforward	$ 705,514
Deferred Tax	99,676	$ 233,133
US - Federal
Operating Loss Carryforwards [Line Items]
Loss Carryforward	465,179
Deferred Tax	88,887
US - State
Operating Loss Carryforwards [Line Items]
Loss Carryforward	240,335
Deferred Tax	$ 10,789

Business Combinations and Acquisitions - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($) climate-controlledContainerAndRefrigeratedStorageTrailer modularLeasingUnit entity storageUnit modularUnit	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Business Acquisition [Line Items]
Assets and liabilities acquired, number of entities \| entity	5
Rental equipment, net	$ 3,381,315	$ 3,077,287
Series of Individually Immaterial Asset Acquisitions
Business Acquisition [Line Items]
Payments to acquire businesses, gross	150,000
Rental equipment, net	$ 147,600
Storage Unit \| Series of Individually Immaterial Asset Acquisitions
Business Acquisition [Line Items]
Number of units in real estate property acquired (approximately) \| storageUnit	1,800
Modular Unit \| Series of Individually Immaterial Asset Acquisitions
Business Acquisition [Line Items]
Number of units in real estate property acquired (approximately) \| modularUnit	700
National provider of cold storage solutions and a regional modular space manufacturing and leasing business \| Storage Unit
Business Acquisition [Line Items]
Number of units in real estate property acquired (approximately) \| climate-controlledContainerAndRefrigeratedStorageTrailer	2,200
National provider of cold storage solutions and a regional modular space manufacturing and leasing business \| Modular Unit
Business Acquisition [Line Items]
Number of units in real estate property acquired (approximately) \| modularLeasingUnit	1,300
Mobile Mini Inc and Other Asset Acquisitions
Business Acquisition [Line Items]
Integration costs	$ 10,400	$ 15,500	$ 28,400

Audit Information	12 Months Ended
Audit Information	Dec. 31, 2023
Auditor Information [Abstract]
Auditor Name	Ernst & Young, LLP
Auditor Location	Baltimore, MD
Auditor Firm ID	42

Revenue - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Revenue - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Provision for credit losses, net of recoveries	$ 23.4	$ 10.4	$ 16.4
Provision for credit losses recorded as a reduction to revenue for the provision of specific receivables whole collection is not considered probable	25.2	23.7	19.8
Deferred revenue for removal services for lease transactions and advance billings for sale transactions	124.1	102.2
Recognition of previously deferred revenue for removal services for lease transactions and advance billings for sale transactions	$ 67.6	$ 47.2	$ 38.8
Accounts Receivable \| Credit Concentration Risk \| No Single Customer
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	1.00%	1.70%
Accounts Receivable \| Credit Concentration Risk \| Top Five Customers
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	4.30%	5.40%
Leasing revenue \| Revenue \| Product Concentration Risk
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	77.00%	75.00%	74.00%

Property, Plant and Equipment, net (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment, net

Depreciation is computed using the straight-line method over estimated useful lives, as follows:


	Estimated Useful Life	Residual Value
Modular space units	10 - 30 years	20 - 55%
Portable storage units	7 - 30 years	20 - 55%
VAPS and other related rental equipment	1 - 10 years	0%

Depreciation is computed using the straight-line method over estimated useful lives as follows:


			Estimated Useful Life
Buildings and leasehold improvements			10 - 40 years
Vehicles, machinery, and equipment			3 - 30 years
Furniture and fixtures			3 - 10 years
Software			3 - 10 years

Rental equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Modular space units	$	3,541,451	$	3,197,779
Portable storage units	1,009,059		849,193
Value added products	204,933		203,444
Total rental equipment	4,755,443		4,250,416
Less: accumulated depreciation	(1,374,128)		(1,173,129)
Rental equipment, net	$	3,381,315	$	3,077,287

Property, plant and equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Land, buildings, and leasehold improvements	$	178,117	$	174,322
Vehicles and equipment	233,793		167,337
Office furniture, fixtures and software	109,460		106,747
Total property, plant and equipment	521,370		448,406
Less: accumulated depreciation	(180,483)		(143,747)
Property, plant and equipment, net	$	340,887	$	304,659

Debt - Schedule of Redemption Price Percentage (Details) - Senior Notes	12 Months Ended
	Dec. 31, 2023
2025 Secured Notes \| Redemption Period One
Debt Instrument [Line Items]
Redemption Price	101.531%
2025 Secured Notes \| Redemption Period Two
Debt Instrument [Line Items]
Redemption Price	100.00%
2028 Secured Notes \| Redemption Period One
Debt Instrument [Line Items]
Redemption Price	102.313%
2028 Secured Notes \| Redemption Period Two
Debt Instrument [Line Items]
Redemption Price	101.156%
2028 Secured Notes \| Redemption Period Three
Debt Instrument [Line Items]
Redemption Price	100.00%
2031 Secured Notes \| Redemption Period One
Debt Instrument [Line Items]
Redemption Price	103.688%
2031 Secured Notes \| Redemption Period Two
Debt Instrument [Line Items]
Redemption Price	101.844%
2031 Secured Notes \| Redemption Period Three
Debt Instrument [Line Items]
Redemption Price	100.00%

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 835
-SubTopic 30
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482900/835-30-50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 3
-Subparagraph (SX 210.12-04(a))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-3

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 5: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481568/470-20-55-69B

Reference 6: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 69C
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481568/470-20-55-69C

Reference 7: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147481568/470-20-55-69E

Reference 8: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
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-Name Accounting Standards Codification
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-Paragraph 69F
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481568/470-20-55-69F

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 11: http://www.xbrl.org/2003/role/exampleRef
-Topic 470
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Subparagraph (h)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1D
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1D
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1D
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1D

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F

Reference 22: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F

Reference 23: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F

Reference 24: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1F
-Subparagraph (b)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1F

Reference 25: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

+ Details

Discontinued Operations - Narrative (Details) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Jan. 31, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Sep. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on sale of discontinued operations		$ 176,078	$ 35,456	$ 0
Tank and Pump
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain on working capital adjustment	$ 400
Gain on sale of discontinued operations		$ 176,100
Discontinued Operations, Disposed of by Sale \| Tank and Pump
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of business consideration amount					$ 321,900
Gain on sale of discontinued operations			35,456
Discontinued Operations, Disposed of by Sale \| UK Storage Solutions
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of business consideration amount	$ 418,100
Gain on sale of discontinued operations			$ 0

Revenue (Tables)

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The Company had total revenue in the following geographic areas for the years ended December 31, as follows:


	Years Ended December 31,
(in thousands)	2023		2022		2021
US	$	2,219,561	$	1,998,796	$	1,542,076
Canada	120,123		125,536		116,070
Mexico	25,083		18,291		14,834
Total revenues	$	2,364,767	$	2,142,623	$	1,672,980

The Company’s revenue by major product and service line for the years ended December 31, was as follows:


	Years Ended December 31,
(in thousands)	2023		2022		2021
Modular space leasing revenue	$	953,822	$	840,926	$	697,852
Portable storage leasing revenue	396,781		361,197		233,868
VAPS and third party leasing revenues(a)	391,948		343,625		263,021
Other leasing-related revenue(b)	91,384		75,942		57,749
Leasing revenue	1,833,935		1,621,690		1,252,490
Delivery and installation revenue	437,179		429,152		321,129
Total leasing and services revenue	2,271,114		2,050,842		1,573,619
New unit sales revenue	48,129		40,338		46,993
Rental unit sales revenue	45,524		51,443		52,368
Total revenues	$	2,364,767	$	2,142,623	$	1,672,980

(a) Includes $23.9 million, $25.3 million, and $17.1 million of VAPS service revenue for the years ended December 31, 2023, 2022 and 2021, respectively.

(b) Includes primarily damage billings, delinquent payment charges, and other processing fees.

Schedule of Future Commited Modular Leasing Revenues

At December 31, 2023 and for the years ended December 31, 2024 through 2028 and thereafter, future committed leasing revenues under non-cancelable operating leases with the Company’s customers, excluding revenue from delivery and installation and potential lease extensions, were as follows:


(in thousands)	Operating Leases
2024	$	367,965
2025	129,048
2026	42,698
2027	17,988
2028	7,887
Thereafter	5,399
Total	$	570,985

Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Schedule of Weighted Average Number of Shares

The following table reconciles income from continuing operations attributable to WillScot Mobile Mini common shareholders to net income attributable to common shareholders for the dilutive EPS calculation and the weighted average shares outstanding for the basic calculation to the weighted average shares outstanding for the diluted calculation for the years ended December 31:


(in thousands)	2023		2022		2021
Numerator:
Income from continuing operations	$	341,844	$	276,341	$	114,895
Income from discontinued operations	134,613		63,199		45,249
Net income	$	476,457	$	339,540	$	160,144

Denominator:
Weighted average Common Shares outstanding - basic	198,555		216,809		226,519
Dilutive effect of outstanding securities:
Warrants	—		1,605		3,589
RSAs	15		18		24
Time-Based RSUs	274		401		594
Performance-Based RSUs	2,040		1,471		955
Stock Options	966		1,095		1,113
Weighted average Common Shares outstanding - dilutive	201,850		221,399		232,794

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following potential common shares were excluded from the computation of dilutive EPS because their effect would have been anti-dilutive:


(in thousands)	2023	2022	2021


Time-based RSUs	106	—	—
Performance-based RSUs	277	591	375

Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Foreign currency translation adjustment, income tax (expense) benefit	$ 0	$ 0	$ (60)
Net Income (loss) on derivatives, tax (expense) benefit	$ 1,088	$ 1,171	$ 2,661

Fair Value Measures (Tables)

12 Months Ended

Dec. 31, 2023

Fair Value Disclosures [Abstract]

Schedule of Fair Value Levels used for Measurement

The Company utilizes the suggested accounting guidance for the three levels of inputs that may be used to measure fair value:


Level 1 -			Observable inputs such as quoted prices in active markets for identical assets or liabilities;
Level 2 -			Observable inputs, other than Level 1 inputs in active markets, that are observable either directly or indirectly; and
Level 3 -			Unobservable inputs for which there is little or no market data, which require the reporting entity to develop its own assumptions

Schedule of Carrying Amounts and Fair Values of Financial Assets and Liabilities

The following table shows the carrying amounts and fair values of financial assets and liabilities, including their levels in the fair value hierarchy:


	December 31, 2023								December 31, 2022
	Carrying Amount		Fair Value						Carrying Amount		Fair Value
(in thousands)			Level 1		Level 2		Level 3				Level 1		Level 2		Level 3
ABL Facility	$	1,929,259	$	—	$	1,956,011	$	—	$	1,988,176	$	—	$	2,020,000	$	—
2025 Secured Notes	522,735		—		527,021		—		520,350		—		526,800		—
2028 Secured Notes	494,500		—		474,285		—		493,470		—		450,135		—
2031 Secured Notes	493,709		—		528,075		—		—		—		—		—
Total	$	3,440,203	$	—	$	3,485,392	$	—	$	3,001,996	$	—	$	2,996,935	$	—

Commitments and Contingencies	12 Months Ended
Commitments and Contingencies	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and ContingenciesThe Company is involved in various lawsuits, claims and legal proceedings that arise in the ordinary course of business. The Company assesses these matters on a case-by-case basis as they arise and establishes reserves as required. As of December 31, 2023, with respect to these outstanding matters, the Company believes that the amount or range of reasonably possible loss will not, either individually or in the aggregate, have a material adverse effect on the consolidated financial position, results of operations, or cash flows. However, the outcome of such matters is inherently unpredictable and subject to significant uncertainties.

Consolidated Statements of Changes in Equity - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2020		229,038,000
Beginning balance at Dec. 31, 2020	$ 2,063,873	$ 23	$ 3,852,291	$ (37,207)	$ (1,751,234)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	160,144				160,144
Other comprehensive income (loss)	$ 8,136			8,136
Stock-based compensation and issuance of common stock from vesting (in shares)	6,752,647	485,000
Stock-based compensation and issuance of Common Stock from vesting	$ 26,184		26,184
Repurchase and cancellation of Common Stock and warrants (in shares)		(11,851,000)
Repurchase and cancellation of Common Stock and warrants	(340,376)	$ (1)	(340,375)
Issuance of common stock from the exercise of options and warrants (in shares)		6,268,000
Issuance of Common Stock from the exercise of options and warrants	85,979		85,979
Withholding taxes on net share settlement of stock-based compensation and option exercises	(7,177)		(7,177)
Ending balance (in shares) at Dec. 31, 2021		223,940,000
Ending balance at Dec. 31, 2021	1,996,763	$ 22	3,616,902	(29,071)	(1,591,090)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	339,540				339,540
Other comprehensive income (loss)	$ (41,051)			(41,051)
Stock-based compensation and issuance of common stock from vesting (in shares)	3,847,905	594,000
Stock-based compensation and issuance of Common Stock from vesting	$ 29,613		29,613
Repurchase and cancellation of Common Stock and warrants (in shares)		(19,836,000)
Repurchase and cancellation of Common Stock and warrants	(756,908)	$ (2)	(756,906)
Issuance of common stock from the exercise of options and warrants (in shares)		3,254,000
Issuance of Common Stock from the exercise of options and warrants	11,231	$ 1	11,230
Withholding taxes on net share settlement of stock-based compensation and option exercises	$ (13,888)		(13,888)
Ending balance (in shares) at Dec. 31, 2022	207,951,682	207,952,000
Ending balance at Dec. 31, 2022	$ 1,565,300	$ 21	2,886,951	(70,122)	(1,251,550)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	476,457				476,457
Other comprehensive income (loss)	$ 17,354			17,354
Stock-based compensation and issuance of common stock from vesting (in shares)	549,272	514,000
Stock-based compensation and issuance of Common Stock from vesting	$ 34,486		34,486
Repurchase and cancellation of Common Stock and warrants (in shares)		(18,534,000)
Repurchase and cancellation of Common Stock and warrants	(818,674)	$ (1)	(818,673)
Issuance of common stock from the exercise of options and warrants (in shares)		35,000
Issuance of Common Stock from the exercise of options and warrants	498		498
Withholding taxes on net share settlement of stock-based compensation and option exercises	$ (14,171)		(14,171)
Ending balance (in shares) at Dec. 31, 2023	189,967,135	189,967,000
Ending balance at Dec. 31, 2023	$ 1,261,250	$ 20	$ 2,089,091	$ (52,768)	$ (775,093)

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 81,656	$ 57,048
Preferred share par value (in USD per share)	$ 0.0001	$ 0.0001
Preferred shares authorized (in shares)	1,000,000	1,000,000
Preferred shares issued (in shares)	0	0
Preferred shares outstanding (in shares)	0	0
Common stock par value (in USD per share)	$ 0.0001	$ 0.0001
Common stock authorized (in shares)	500,000,000	500,000,000
Common stock issued (in shares)	189,967,135	207,951,682
Common stock outstanding (in shares)	189,967,135	207,951,682

Debt - Senior Secured Notes (Details) - USD ($)		12 Months Ended
Debt - Senior Secured Notes (Details) - USD ($)	Sep. 25, 2023	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Aug. 25, 2020	Jun. 15, 2020
Debt Instrument [Line Items]
Loss on extinguishment of debt		$ 0	$ 0	$ 5,999,000
2025 Secured Notes \| Senior Notes
Debt Instrument [Line Items]
Debt, face amount						$ 650,000,000
Interest rate		6.125%				6.125%
Repayments of debt				123,500,000
Loss on extinguishment of debt				6,000,000
Early redemption premium				3,700,000
Write off of debt issuance costs				$ 2,300,000
Outstanding principal borrowings on the credit facility		$ 526,500,000
Debt issuance costs, gross		$ 3,800,000
2028 Secured Notes \| Senior Notes
Debt Instrument [Line Items]
Debt, face amount					$ 500,000,000
Interest rate		4.625%			4.625%
Debt issuance costs, gross		$ 5,500,000
2031 Secured Notes \| Senior Notes
Debt Instrument [Line Items]
Debt, face amount	$ 500,000,000
Interest rate	7.375%	7.375%
2031 Secured Notes \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt issuance costs, gross		$ 6,300,000
Asset Based Liability Facility Due 2027 \| Line of Credit
Debt Instrument [Line Items]
Repayments of outstanding indebtedness	$ 494,000,000
Asset Based Liability Facility Due 2027 \| Line of Credit \| Revolving Credit Facility
Debt Instrument [Line Items]
Outstanding principal borrowings on the credit facility		2,000,000,000	$ 31,800,000
Debt issuance costs, gross		$ 26,800,000

Earnings Per Share - Schedule of Anti-dilutive Securities (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Time-based RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from computation of diluted earnings per share because their effect would have been anti-dilutive (in shares)	106	0	0
Performance-based RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Securities excluded from computation of diluted earnings per share because their effect would have been anti-dilutive (in shares)	277	591	375

Earnings Per Share

12 Months Ended

Dec. 31, 2023

Earnings Per Share [Abstract]

Earnings Per Share

Basic earnings per share (“EPS”) is calculated by dividing net income attributable to WillScot Mobile Mini common shareholders by the weighted average number of shares of Common Stock outstanding during the period. The shares of Common Stock issued as a result of the vesting of RSUs and RSAs as well as the exercise of stock options or redemption of warrants are included in EPS based on the weighted average number of days in which they were outstanding during the period.

Diluted EPS is computed similarly to basic EPS, except that it includes the potential dilution that could occur if dilutive securities were exercised. Effects of potentially dilutive securities are presented only in periods in which they are dilutive.


(in thousands)	2023		2022		2021
Numerator:
Income from continuing operations	$	341,844	$	276,341	$	114,895
Income from discontinued operations	134,613		63,199		45,249
Net income	$	476,457	$	339,540	$	160,144

Denominator:
Weighted average Common Shares outstanding - basic	198,555		216,809		226,519
Dilutive effect of outstanding securities:
Warrants	—		1,605		3,589
RSAs	15		18		24
Time-Based RSUs	274		401		594
Performance-Based RSUs	2,040		1,471		955
Stock Options	966		1,095		1,113
Weighted average Common Shares outstanding - dilutive	201,850		221,399		232,794

The following potential common shares were excluded from the computation of dilutive EPS because their effect would have been anti-dilutive:


(in thousands)	2023	2022	2021


Time-based RSUs	106	—	—
Performance-based RSUs	277	591	375

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating activities:
Net income	$ 476,457	$ 339,540	$ 160,144	$ 74,000
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	338,654	343,507	318,202
Provision for credit losses	49,650	34,835	38,191
Gain on sale of discontinued operations	(176,078)	(35,456)	0
Gain on sale of rental equipment and other property, plant and equipment	(32,724)	(31,196)	(26,175)
Amortization of debt discounts and debt issuance costs	11,211	12,064	14,033
Fair value loss on common stock warrant liabilities	0	0	26,597
Loss on extinguishment of debt	0	0	5,999
Stock-based compensation expense	34,486	29,613	26,184
Deferred income tax expense	141,641	100,849	36,563
Loss on settlement of foreign currency forward contract	7,715	0	0
Unrealized currency (gains) losses, net	(1,374)	753	295
Other	3,413	4,081	0
Changes in operating assets and liabilities, net of effect of businesses acquired:
Trade receivables	(76,357)	(94,463)	(105,053)
Inventories	(3,276)	(12,345)	(9,083)
Prepaid expenses and other assets	(18,310)	149	3,324
Operating lease assets and liabilities	1,045	856	473
Accounts payable and other accrued expenses	(14,836)	9,443	27,525
Deferred revenue and customer deposits	19,923	42,428	22,683
Net cash provided by operating activities	761,240	744,658	539,902
Investing activities:
Proceeds from sale of discontinued operations	403,992	325,611	0
Acquisitions, net of cash acquired	(561,629)	(220,620)	(147,172)
Proceeds from sale of rental equipment	51,290	70,703	55,210
Purchase of rental equipment and refurbishments	(226,976)	(443,138)	(278,498)
Payment for settlement of foreign currency forward contract	(7,715)	0	0
Proceeds from the sale of property, plant and equipment	13,272	1,775	16,911
Purchase of property, plant and equipment	(22,237)	(43,664)	(30,498)
Net cash used in investing activities	(350,003)	(309,333)	(384,047)
Financing activities:
Repurchase and cancellation of Common Stock and warrants	(818,182)	(751,795)	(363,586)
Receipts from issuance of Common Stock from the exercise of options	498	11,230	7,484
Taxes paid on employee stock awards	(14,171)	(13,888)	(7,177)
Receipts from borrowings	1,911,230	964,308	728,677
Repayment of borrowings	(1,475,219)	(588,808)	(512,181)
Payment of financing costs	(6,457)	(8,187)	0
Principal payments on finance lease obligations	(16,634)	(42,228)	(17,399)
Payment of debt extinguishment premium costs	0	0	(3,705)
Net cash used in financing activities	(418,935)	(429,368)	(167,887)
Effect of exchange rate changes on cash and cash equivalents	882	(882)	(206)
Net change in cash and cash equivalents	(6,816)	5,075	(12,238)
Cash and cash equivalents at the beginning of the period	17,774	12,699	24,937
Cash and cash equivalents at the end of the period	10,958	17,774	12,699	$ 24,937
Supplemental cash flow information:
Interest paid, net	184,863	130,463	103,795
Income taxes paid, net	32,949	25,092	9,855
Capital expenditures accrued or payable	19,557	21,052	27,667
Reconciliation of cash and cash equivalents to the consolidated balance sheet:
Cash and cash equivalents	10,958	7,390
Continuing And Discontinued Operations
Reconciliation of cash and cash equivalents to the consolidated balance sheet:
Cash and cash equivalents	10,958	17,774	12,699
Continuing Operations
Adjustments to reconcile net income to net cash provided by operating activities:
Fair value loss on common stock warrant liabilities	0	0	26,597
Loss on extinguishment of debt	0	0	5,999
Reconciliation of cash and cash equivalents to the consolidated balance sheet:
Cash and cash equivalents	10,958	7,390	6,393
Discontinued Operations
Reconciliation of cash and cash equivalents to the consolidated balance sheet:
Cash and cash equivalents	$ 0	$ 10,384	$ 6,306

Revenue - Schedule of Future Commited Modular Leasing Revenues (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Revenue from Contract with Customer [Abstract]
2024	$ 367,965
2025	129,048
2026	42,698
2027	17,988
2028	7,887
Thereafter	5,399
Total	$ 570,985

Inventories

12 Months Ended

Dec. 31, 2023

Inventory Disclosure [Abstract]

Inventories

Inventories at December 31, consisted of the following:


(in thousands)	2023		2022
Raw materials	$	43,071	$	38,611
Finished units	4,335		2,419
Inventories	$	47,406	$	41,030

Derivatives - Schedule of Fair Value of Derivative Instruments Designated as Hedges in the Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Interest rate swap
Derivative [Line Items]
Prepaid expenses and other current assets	$ 9,145
Other non-current liabilities	$ (4,595)
Foreign currency contract
Derivative [Line Items]
Accrued liabilities		$ 930

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events Interest Rate Swaps In January 2024, the Company entered into two interest rate swap agreements with financial counterparties relating to $500.0 million in aggregate notional amount of variable-rate debt under the Company's ABL Facility. Under the terms of the agreements, the Company receives a floating rate equal to one-month term SOFR and will make payments based on a weighted average fixed interest rate of 3.70% on the notional amount. The swap agreements were designated and qualified as hedges of the Company's exposure to changes in interest payment cash flows created by fluctuations in variable interest rates on the ABL Facility. The swap agreements terminate on June 30, 2027. Entry into an Agreement to Acquire McGrath RentCorp On January 28, 2024, the Company, along with its newly formed subsidiaries, Brunello Merger Sub I, Inc. (“Merger Sub I”) and Brunello Merger Sub II, LLC (“Merger Sub II”), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with McGrath RentCorp ("McGrath"). Merger Sub I will merge with and into McGrath (the “First-Step Merger”), with McGrath surviving the First-Step Merger and, immediately thereafter, McGrath will merge with and into Merger Sub II (the “Second-Step Merger” and together with the First-Step Merger, the “McGrath Acquisition”), with Merger Sub II surviving the Second-Step Merger as a wholly owned subsidiary of the Company. At the effective time of the First-Step Merger, and subject to the terms and subject to the conditions set forth in the Merger Agreement, each outstanding share of the common stock of McGrath shall be converted into the right to receive either (i) $123.00 in cash or (ii) 2.8211 shares of validly issued, fully paid and nonassessable shares of the Company’s common stock. Under the terms of the Merger Agreement, we expect McGrath’s shareholders would own approximately 12.6% of the Company following the McGrath Acquisition. The McGrath Acquisition has been approved by the Company and McGrath’s respective boards of directors. The McGrath Acquisition is subject to customary closing conditions, including receipt of regulatory approval and approval by McGrath’s shareholders, and is expected to close in the second quarter of 2024. In connection with the Merger Agreement, the Company entered into a commitment letter on January 28, 2024, which was further amended and restated on February 12, 2024 (the "Commitment Letter"), pursuant to which certain financial institutions have committed to make available to WSI, in accordance with the terms of the Commitment Letter, (i) an $875 million eight year senior secured bridge credit facility, (ii) an $875 million five year senior secured bridge credit facility and (iii) an upsize to WSI's existing $3.7 billion ABL Facility by $750 million to $4.45 billion to repay McGrath's existing credit facilities and notes, fund the cash portion of the consideration, and pay the fees, costs and expenses incurred in connection with the McGrath Acquisition and the related transactions, subject to customary conditions.

Goodwill and Intangible Assets - Schedule of Future Amortization (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
2024	$ 29,122
2025	29,122
2026	28,997
2027	28,684
2028	14,784
Net book value	$ 130,709

Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2023

Business Combination and Asset Acquisition [Abstract]

Schedule of Discontinued Operations

The following tables present the results of the former Tank and Pump segment and the former UK Storage Solutions segment as reported in income from discontinued operations within the consolidated statements of operations, and the carrying value of the former UK Storage Solutions segment's assets and liabilities as presented within assets and liabilities held for sale on the consolidated balance sheet as of December 31, 2022. The 2022 results for the former Tank and Pump segment represent results for the nine months ended September 30, 2022 as the Company sold the former Tank and Pump segment on September 30, 2022. The 2023 results for the former UK Storage Solutions segment represent results for one month as the Company sold the former UK Storage Solutions segment on January 31, 2023.


	Year Ended December 31, 2023
(in thousands)	UK Storage Solutions
Revenues:
Leasing and services revenue:
Leasing	$	6,389
Delivery and installation	1,802
Sales revenue:
New units	54
Rental units	449
Total revenues	8,694
Costs:
Costs of leasing and services:
Leasing	1,407
Delivery and installation	1,213
Costs of sales:
New units	38
Rental units	492

Gross profit	5,544
Expenses:
Selling, general and administrative	1,486



Other income, net	(1)
Operating income	4,059
Interest expense	56
Income from discontinued operations before income tax	4,003
Gain on sale of discontinued operations	175,708
Income tax expense from discontinued operations	45,468
Income from discontinued operations	$	134,243
Other selected data:
Adjusted EBITDA from discontinued operations	$	4,124


	Year Ended December 31, 2022
(in thousands)	Tank and Pump		UK Storage Solutions		Total
Revenues:
Leasing and services revenue:
Leasing	$	65,572	$	79,772	$	145,344
Delivery and installation	27,665		22,876		50,541
Sales revenue:
New units	2,202		1,106		3,308
Rental units	917		1,455		2,372
Total revenues	96,356		105,209		201,565
Costs:
Costs of leasing and services:
Leasing	13,828		16,737		30,565
Delivery and installation	23,285		14,867		38,152
Costs of sales:
New units	1,636		738		2,374
Rental units	310		1,012		1,322
Depreciation of rental equipment	8,145		4,254		12,399
Gross profit	49,152		67,601		116,753
Expenses:
Selling, general and administrative	18,045		21,795		39,840
Other depreciation and amortization	6,103		5,906		12,009

Currency losses, net	—		138		138
Other expense, net	4		(7)		(3)
Operating income	25,000		39,769		64,769
Interest expense	512		789		1,301
Income from discontinued operations before income tax	24,488		38,980		63,468
Income tax expense from discontinued operations	843		34,882		35,725
Gain on sale of discontinued operations	35,456		—		$	35,456
Income from discontinued operations	$	59,101	$	4,098	$	63,199
Other selected data:
Adjusted EBITDA from discontinued operations	$	37,016	$	48,734	$	85,750


	Year Ended December 31, 2021
(in thousands)	Tank and Pump		UK Storage Solutions		Total
Revenues:
Leasing and services revenue:
Leasing	$	77,527	$	82,106	$	159,633
Delivery and installation	29,530		24,023		53,553
Sales revenue:
New units	2,355		3,534		5,889
Rental units	1,479		1,363		2,842
Total revenues	110,891		111,026		221,917
Costs:
Costs of leasing and services:
Leasing	17,045		17,440		34,485
Delivery and installation	25,057		14,271		39,328
Costs of sales:
New units	1,672		2,357		4,029
Rental units	536		1,287		1,823
Depreciation of rental equipment	14,319		4,428		18,747
Gross profit	52,262		71,243		123,505
Expenses:
Selling, general and administrative	22,194		24,974		47,168
Other depreciation and amortization	9,366		6,887		16,253
Restructuring costs	2		—		2
Currency gains, net	—		121		121
Other expense, net	11		54		65
Operating income	20,689		39,207		59,896
Interest expense	779		850		1,629
Income from discontinued operations before income tax	19,910		38,357		58,267
Income tax expense from discontinued operations	5,277		7,741		13,018
Income from discontinued operations	$	14,633	$	30,616	$	45,249
Other selected data:
Adjusted EBITDA from discontinued operations	$	41,750	$	49,039	$	90,789


	December 31, 2022
(in thousands)	UK Storage Solutions
Assets
Cash and cash equivalents	$	10,384
Trade receivables, net of allowances for doubtful accounts of $300	15,991
Inventories	3,058
Prepaid expenses and other current assets	1,787
Rental equipment, net	165,853
Property, plant and equipment, net	20,645
Operating lease assets	15,134
Goodwill	58,144
Intangible assets, net	6,414
Other non-current assets	1,832
Total assets held for sale	$	299,242
Liabilities
Accounts payable	$	4,515
Accrued expenses	3,273
Accrued employee benefits	1,009
Deferred revenue and customer deposits	6,850
Deferred tax liabilities	29,737
Operating lease liabilities	15,192
Other non-current liabilities	6,278
Total liabilities held for sale	$	66,854

For the years ended December 31, 2022 and 2021, significant operating and investing items related to the former Tank and Pump segment were as follows:


	Years Ended December 31,
(in thousands)	2022		2021
Operating activities of discontinued operations:
Depreciation and amortization	$	14,248	$	23,685

Investing activities of discontinued operations:
Proceeds from sale of rental equipment	$	918	$	1,480
Purchases of rental equipment and refurbishments	$	(21,831)	$	(17,747)
Proceeds from sale of property, plant and equipment	$	—	$	388
Purchases of property, plant and equipment	$	(525)	$	(1,743)

The following table presents reconciliations of Income from discontinued operations before income tax to Adjusted EBITDA from discontinued operations for the former Tank and Pump segment for the years ended December 31, 2022 and 2021, respectively. See Note 18 for further information regarding Adjusted EBITDA.


	Years Ended December 31,
(in thousands)	2022		2021
Income from discontinued operations	$	59,101	$	14,633
Gain on sale of discontinued operations	35,456		—
Income tax expense from discontinued operations	843		5,277
Income from discontinued operations before income tax and gain on sale	24,488		19,910
Interest expense	512		779
Depreciation and amortization	14,248		23,685
Restructuring costs, lease impairment expense and other related charges	—		2
Integration costs	—		14
Stock compensation expense	18		222
Other	(2,250)		(2,862)
Adjusted EBITDA from discontinued operations	$	37,016	$	41,750

For the years ended December 31, 2023, 2022 and 2021, significant operating and investing items related to the UK Storage Solutions segment were as follows:


	Years Ended December 31,
(in thousands)	2023		2022		2021
Operating activities of discontinued operations:
Depreciation and amortization	$	—	$	10,160	$	11,315

Investing activities of discontinued operations:
Proceeds from sale of rental equipment	$	514	$	1,455	$	1,363
Purchases of rental equipment and refurbishments	$	(371)	$	(23,931)	$	(27,830)
Proceeds from sale of property, plant and equipment	$	8	$	504	$	387
Purchases of property, plant and equipment	$	(64)	$	(3,752)	$	(1,680)

The following table presents reconciliations of Income from discontinued operations before income tax to Adjusted EBITDA from discontinued operations for the UK Storage Solutions segment for the years ended December 31, 2023, 2022 and 2021, respectively. See Note 18 for further information regarding Adjusted EBITDA.


	Years Ended December 31,
(in thousands)	2023		2022		2021
Income from discontinued operations	$	134,243	$	4,098	$	30,616
Gain on sale of discontinued operations	175,708		—		—
Income tax expense from discontinued operations	45,468		34,882		7,741
Income from discontinued operations before income tax and gain on sale	4,003		38,980		38,357
Interest expense	56		789		850
Depreciation and amortization	—		10,160		11,315
Currency losses, net	—		138		121



Stock compensation expense	(196)		197		39
Other	261		(1,530)		(1,643)
Adjusted EBITDA from discontinued operations	$	4,124	$	48,734	$	49,039

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
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+ Details

Debt - Schedule of Debt Discount Amortization (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2023 USD ($)
Debt Disclosure [Abstract]
2024	$ 11,891
2025	10,664
2026	9,555
2027	5,852
2028	1,677
Thereafter	$ 2,667

Stock-Based Compensation - Schedule of Stock Option Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
WillScot Options
Options
Beginning balance (in shares)	534,188	534,188	534,188
Converted at merger (in shares)			0
Exercised (in shares)	0	0	0
Ending balance (in shares)	534,188	534,188	534,188
Weighted-Average Exercise Price per Share
Beginning balance (in USD per share)	$ 13.60	$ 13.60	$ 13.60
Converted at merger (in USD per share)			0
Exercised (in USD per share)	0	0	0
Ending balance (in USD per share)	$ 13.60	$ 13.60	$ 13.60
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Fully vested and exercisable options (in shares)	534,188
Fully vested and exercisable options, weighted-average exercise price per share (in USD per share)	$ 13.60
Converted Mobile Mini Options
Options
Beginning balance (in shares)	864,276	1,527,643	2,031,455
Converted at merger (in shares)			(6,240)
Exercised (in shares)	(35,030)	(663,367)	(497,572)
Ending balance (in shares)	829,246	864,276	1,527,643
Weighted-Average Exercise Price per Share
Beginning balance (in USD per share)	$ 12.91	$ 14.66	$ 14.78
Converted at merger (in USD per share)			12.19
Exercised (in USD per share)	14.21	16.93	15.21
Ending balance (in USD per share)	$ 12.86	$ 12.91	$ 14.66
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Fully vested and exercisable options (in shares)	829,246
Fully vested and exercisable options, weighted-average exercise price per share (in USD per share)	$ 12.86

Segment Reporting - Schedule of Reconciliation of Adjusted EBITDA (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Income from continuing operations	$ 476,457	$ 339,540	$ 160,144
Income tax expense from continuing operations	126,575	88,863	36,528
Loss on extinguishment of debt	0	0	5,999
Fair value loss on common stock warrant liabilities	0	0	26,597
Interest expense	205,040	146,278	116,358
Currency losses, net	6,754	886	427
Adjusted EBITDA from discontinued operations	1,061,465	883,874	649,604
Continuing Operations
Segment Reporting Information [Line Items]
Income from continuing operations	341,844	276,341	114,895
Income tax expense from continuing operations	126,575	88,863	36,528
Loss on extinguishment of debt	0	0	5,999
Fair value loss on common stock warrant liabilities	0	0	26,597
Interest expense	205,040	146,278	116,358
Depreciation and amortization	338,654	319,099	280,567
Currency losses, net	6,754	886	427
Restructuring costs, lease impairment expense and other related charges	22	168	14,754
Transaction costs	2,259	25	1,375
Integration costs	10,366	15,484	28,410
Stock compensation expense	34,486	29,613	18,728
Other	(4,535)	7,117	4,966
Adjusted EBITDA from discontinued operations	$ 1,061,465	$ 883,874	$ 649,604

Goodwill and Intangible Assets

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill

Changes in the carrying amount of goodwill were as follows:


(in thousands)	Modular		Storage		Total
Balance at December 31, 2021	$	521,049	$	492,552	$	1,013,601
Effects of movements in foreign exchange rates	(2,172)		—		(2,172)
Balance at December 31, 2022	518,877		492,552		1,011,429
Additions from acquisitions	61,111		103,391		164,502
Effects of movements in foreign exchange rates	704		—		704
Balance at December 31, 2023	$	580,692	$	595,943	$	1,176,635

The Company conducted its annual impairment test of goodwill as of October 1, 2023 and determined that there was no impairment of goodwill identified. Accumulated historical goodwill impairment losses were $792.8 million and pertain to the Modular segment (as defined in Note 18) prior to Double Eagle Acquisition Corporation's acquisition of Williams Scotsman International, Inc. in 2017. There were no goodwill impairments recorded for the years ended December 31, 2023, 2022 and 2021.

Intangible Assets

Intangible assets other than goodwill at December 31, consisted of the following:


	December 31, 2023
(in thousands)	Weighted average remaining life (in years)	Gross carrying amount		Accumulated amortization		Net book value
Intangible assets subject to amortization:
Customer Relationships	4.5	$	214,408	$	(84,324)	$	130,084
Technology	2.5	1,500		(875)		625
Indefinite-lived intangible assets:
Trade name – Mobile Mini		164,000		—		164,000
Trade name – WillScot		125,000		—		125,000
Total intangible assets other than goodwill		$	504,908	$	(85,199)	$	419,709


	December 31, 2022
(in thousands)	Weighted average remaining life (in years)	Gross carrying amount		Accumulated amortization		Net book value
Intangible assets subject to amortization:
Customer Relationships	5.5	$	188,000	$	(58,750)	$	129,250
Technology	3.5	1,500		(625)		875
Indefinite-lived intangible assets:
Trade name - Mobile Mini		164,000		—		164,000
Trade name - WillScot		125,000		—		125,000
Total intangible assets other than goodwill		$	478,500	$	(59,375)	$	419,125

For the years ended December 31, 2023, 2022 and 2021, the aggregate amount recorded to depreciation and amortization expense for intangible assets subject to amortization was $25.8 million, $23.8 million and $24.3 million, respectively.

As of December 31, 2023, the expected future amortization expense for intangible assets is as follows:


(in thousands)	Amortization Expense
2024	$	29,122
2025	29,122
2026	28,997
2027	28,684
2028	14,784

Total	$	130,709

Segment Reporting

12 Months Ended

Dec. 31, 2023

Segment Reporting [Abstract]

Segment Reporting

The Company operates in two reportable segments as follows: Modular Solutions ("Modular") and Storage Solutions ("Storage").

Prior to the third quarter of 2021, the Modular segment represented the activities of WillScot historical segments prior to the Merger. During the third quarter of 2021, the majority of the portable storage product business within the Modular segment was transitioned to the Storage segment, and associated revenues, expenses, and operating metrics beginning in the third quarter of 2021 were transferred to the Storage segment, representing a shift of approximately $5.0 million of revenue and gross margin per quarter from the Modular segment to the Storage segment. This adjustment was not made to the historical segment results of prior periods, as the Company believes such adjustments to be immaterial.

During the first quarter of 2023, the ground level office business within the Modular segment was transferred to the Storage segment, and associated revenues, expenses, and operating metrics were transferred to the Storage segment. All periods presented have been retrospectively revised to reflect this change between the Modular and Storage segments. For the year ended December 31, 2022, $49.8 million of revenue and $28.5 million of gross profit were reclassified from the Modular segment to the Storage segment.

In January 2024, the Company launched a unified go-to market approach to achieve local product unification within each metropolitan statistical area. In connection with this change in operating model, the Company realigned the composition of its segments to reflect how its Chief Operating Decision Maker reviews information to make operating decisions and assess performance. As a result, the Company concluded that its divisions represent its operating segments, which are aggregated into one reportable segment as the divisions have similar economic characteristics, offer similar products to similar customers, use similar methods to distribute products and are subject to similar competitive risks. This change in reportable segments will be reflected in our financial statements beginning in 2024.

Total assets for each reportable segment are not available because the Company utilizes a centralized approach to working capital management.

The Company defines EBITDA as net income (loss) plus interest (income) expense, income tax (benefit) expense, depreciation and amortization. The Company reflects the further adjustments to EBITDA (“Adjusted EBITDA”) to exclude certain non-cash items and the effect of what the Company considers transactions or events not related to its core and ongoing business operations. In addition, the Chief Operating Decision Maker ("CODM") evaluates business segment performance utilizing Adjusted EBITDA as shown in the reconciliation of the Company’s income from continuing operations to Adjusted EBITDA below. Management believes that evaluating segment performance excluding such items is meaningful because it provides insight with respect to the intrinsic and ongoing operating results of the Company. The Company considers Adjusted EBITDA to be an important metric because it reflects the business performance of the segments, inclusive of indirect costs. The Company also regularly evaluates gross profit by segment to assist in the assessment of its operational performance.

Reportable Segments

The following tables set forth certain information regarding each of the Company’s reportable segments for the years ended December 31, 2023, 2022, and 2021, respectively.


	Year Ended December 31, 2023
(in thousands)	Modular		Storage		Unallocated Costs		Total
Revenues:
Leasing and services revenue:
Leasing	$	1,137,685	$	696,250			$	1,833,935
Delivery and installation	283,433		153,746				437,179
Sales revenue:
New units	41,777		6,352				48,129
Rental units	32,771		12,753				45,524
Total revenues	1,495,666		869,101				2,364,767

Costs:
Cost of leasing and services:
Leasing	311,501		86,966				398,467
Delivery and installation	224,671		92,446				317,117
Cost of sales:
New units	23,599		2,840				26,439
Rental units	15,800		7,341				23,141
Depreciation of rental equipment	219,869		45,864				265,733
Gross profit	$	700,226	$	633,644			$	1,333,870
Other selected data:
Adjusted EBITDA from continuing operations	$	598,354	$	463,111			$	1,061,465
Selling, general and administrative expense	$	329,068	$	217,604	$	49,418	$	596,090
Purchases of rental equipment and refurbishments	$	184,993	$	41,612			$	226,605


	Year Ended December 31, 2022
(in thousands)	Modular		Storage		Unallocated Costs		Total
Revenues:
Leasing and services revenue:
Leasing	$	992,316	$	629,374			$	1,621,690
Delivery and installation	272,749		156,403				429,152
Sales revenue:
New units	33,985		6,353				40,338
Rental units	42,983		8,460				51,443
Total Revenues	1,342,033		800,590				2,142,623

Costs:
Cost of leasing and services:
Leasing	273,233		103,635				376,868
Delivery and installation	221,784		100,852				322,636
Cost of sales:
New units	20,475		3,536				24,011
Rental units	21,271		5,636				26,907
Depreciation of rental equipment	221,433		35,286				256,719
Gross profit	$	583,837	$	551,645			$	1,135,482
Other selected data:
Adjusted EBITDA from continuing operations	$	508,343	$	375,531	$	—	$	883,874
Selling, general and administrative expense	$	304,937	$	215,732	$	46,738	$	567,407
Purchases of rental equipment and refurbishments	$	279,079	$	118,297	$	—	$	397,376


	Year Ended December 31, 2021
(in thousands)	Modular		Storage		Unallocated Costs		Total
Revenues:
Leasing and services revenue:
Leasing	$	827,677	$	424,813			$	1,252,490
Delivery and installation	213,818		107,311				321,129
Sales revenue:
New units	40,322		6,671				46,993
Rental units	38,666		13,702				52,368
Total revenues	1,120,483		552,497				1,672,980

Costs:
Cost of leasing and services:
Leasing	219,462		63,114				282,576
Delivery and installation	191,011		76,522				267,533
Cost of sales:
New units	27,386		3,962				31,348
Rental units	20,163		7,867				28,030
Depreciation of rental equipment	190,805		27,985				218,790
Gross profit	$	471,656	$	373,047			$	844,703
Other selected data:
Adjusted EBITDA from continuing operations	$	404,577	$	245,027	$	—	$	649,604
Selling, general and administrative expense	$	256,168	$	160,300	$	63,939	$	480,407
Purchase of rental equipment and refurbishments	$	187,495	$	45,426	$	—	$	232,921

The following tables present a reconciliation of the Company’s Income from continuing operations to Adjusted EBITDA for the years ended December 31, 2023, 2022, and 2021, respectively:


	Year Ended December 31,
(in thousands)	2023		2022		2021
Income from continuing operations	$	341,844	$	276,341	$	114,895
Income tax expense from continuing operations	126,575		88,863		36,528
Loss on extinguishment of debt	—		—		5,999
Fair value loss on common stock warrant liabilities	—		—		26,597
Interest expense	205,040		146,278		116,358
Depreciation and amortization	338,654		319,099		280,567
Currency losses, net	6,754		886		427
Restructuring costs, lease impairment expense and other related charges	22		168		14,754
Transaction costs	2,259		25		1,375
Integration costs	10,366		15,484		28,410
Stock compensation expense	34,486		29,613		18,728
Other	(4,535)		7,117		4,966
Adjusted EBITDA from continuing operations	$	1,061,465	$	883,874	$	649,604

Included in restructuring costs for the year ended December 31, 2021 was expense of approximately $7.2 million recognized as a result of the modification of certain equity awards associated with the Transition, Separation and Release Agreement entered into on February 25, 2021 with the Company's former President and Chief Operating Officer. For the year ended December 31, 2021, stock-based compensation expense reported in the Statement of Cash Flows included these charges.

Assets

Assets related to the Company’s reportable segments include the following:


(in thousands)	Modular		Storage		Total
As of December 31, 2023:
Goodwill	$	580,692	$	595,943	$	1,176,635
Intangible assets, net	$	126,620	$	293,089	$	419,709
Rental equipment, net	$	2,141,848	$	1,239,467	$	3,381,315
As of December 31, 2022:
Goodwill	$	518,877	$	492,552	$	1,011,429
Intangible assets, net	$	125,000	$	294,125	$	419,125
Rental equipment, net	$	2,004,055	$	1,073,232	$	3,077,287

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 22
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-22

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-15

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 31
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-31

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 40
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-40

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//280/tableOfContent

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 26
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-26

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 34
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-34

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 41
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-41

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-21

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 21
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-21

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 32
-Subparagraph (e)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-32

+ Details

Earnings Per Share - Schedule of Reconciliation of Weighted Average Shares Outstanding (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Income from continuing operations	$ 341,844	$ 276,341	$ 114,895
Income from discontinued operations	134,613	63,199	45,249
Net income basic	476,457	339,540	160,144
Net income diluted	$ 476,457	$ 339,540	$ 160,144
Weighted average shares:
Weighted average Common Shares outstanding - basic (in shares)	198,554,885	216,808,577	226,518,931
Warrants (in shares)	0	1,605,000	3,589,000
Diluted (in shares)	201,849,836	221,399,162	232,793,902
RSAs
Weighted average shares:
Awards (in shares)	15,000	18,000	24,000
Time-based RSUs
Weighted average shares:
Awards (in shares)	274,000	401,000	594,000
Performance-Based RSUs
Weighted average shares:
Awards (in shares)	2,040,000	1,471,000	955,000
Stock Options
Weighted average shares:
Awards (in shares)	966,000	1,095,000	1,113,000

Equity - Narrative (Details) - USD ($)	12 Months Ended
Equity - Narrative (Details) - USD ($)	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	May 31, 2023
Equity [Abstract]
Preferred shares authorized (in shares)	1,000,000	1,000,000
Preferred share par value (in USD per share)	$ 0.0001	$ 0.0001
Preferred shares issued (in shares)	0	0
Preferred shares outstanding (in shares)	0	0
Common stock authorized (in shares)	500,000,000	500,000,000
Common stock par value (in USD per share)	$ 0.0001	$ 0.0001
Common stock issued (in shares)	189,967,135	207,951,682
Common stock outstanding (in shares)	189,967,135	207,951,682
Stock-based compensation and issuance of common stock from vesting (in shares)	549,272	3,847,905	6,752,647
Authorized share repurchase program				$ 1,000,000,000
Shares repurchased (in shares)	18,533,819	19,854,424
Stock repurchased during period, value	$ 810,800,000	$ 756,900,000
Remaining authorized share repurchase program	$ 498,200,000

Leases - Schedule of Supplemental Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash paid for the amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$ 68,889	$ 61,418	$ 58,931
Operating cash outflows from finance leases	3,715	1,895	1,432
Financing cash outflows from finance leases	16,510	15,159	12,476
Right of use assets obtained in exchange for lease obligations	95,897	55,005	66,887
Assets obtained in exchange for finance leases	$ 58,737	$ 29,803	$ 19,435

Derivatives

12 Months Ended

Dec. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivatives

Interest Rate Swaps

In 2018, the Company entered into an interest rate swap agreement (the “Swap Agreement”) with a financial counterparty that effectively converted $400.0 million in aggregate notional amount of variable-rate debt under the Company’s ABL Facility into fixed-rate debt. Under the terms of the Swap Agreement, the Company received a floating rate equal to one-month LIBOR and made payments based on a fixed rate of 3.06% on the notional amount. The Swap Agreement was designated and qualified as a hedge of the Company’s exposure to changes in interest payment cash flows created by fluctuations in variable interest rates on the ABL Facility. The Swap Agreement terminated on May 29, 2022.

In January 2023, the Company entered into two interest rate swap agreements with financial counterparties relating to $750.0 million in aggregate notional amount of variable-rate debt under the Company’s ABL Facility. Under the terms of the agreements, the Company receives a floating rate equal to one-month term SOFR and makes payments based on a weighted average fixed interest rate of 3.44% on the notional amount. The swap agreements were designated and qualified as hedges of the Company’s exposure to changes in interest payment cash flows created by fluctuations in variable interest rates on the ABL Facility. The swap agreements terminate on June 30, 2027. The floating rate that the Company receives under the terms of these swap agreements was 5.36% at December 31, 2023.

The location and the fair value of derivative instruments designated as hedges were as follows:


(in thousands)	Balance Sheet Location	2023
Cash Flow Hedges:
Interest rate swap	Prepaid expenses and other current assets	$	9,145
Interest rate swap	Other non-current liabilities	$	(4,595)

Over the next twelve months, the Company expects to reclassify $9.1 million, net of tax, from accumulated other comprehensive loss into the consolidated statements of operations within interest expense related to the interest rate swaps.

The fair value of the interest rate swaps was based on dealer quotes of market forward rates, a Level 2 input on the fair value hierarchy, and reflected the amount that the Company would receive or pay for contracts involving the same attributes and maturity dates.

The following table discloses the impact of the interest rate swaps, excluding the impact of income taxes, on other comprehensive income (“OCI”), AOCI and the Company’s statement of operations for the years ended December 31:


(in thousands)	2023		2022		2021
Gain recognized in OCI	$	15,901	$	4,669	$	11,677
Location of gain (loss) recognized in income	Interest expense, net		Interest expense, net		Interest expense, net
(Gain) loss reclassified from AOCI into income	$	(11,550)	$	4,530	$	12,001

Foreign Currency Contract

In December 2022, the Company executed a contingent forward contract to sell £330.0 million upon the closing of the sale of the former UK Storage Solutions segment at a price ranging from 1.20550 to 1.20440 USD to British Pounds Sterling. The price was dependent upon the date of the closing of the sale. This contract, which was to expire on September 11, 2023, mitigated the foreign currency risk of the USD relative to the British Pound Sterling prior to the closing of the sale of the former UK Storage Solutions segment. This contract did not qualify for hedge accounting and was revalued at fair value at the reporting date with unrealized gains and losses reflected in the Company's results of operations. Upon the closing of the sale of the UK Storage Solutions segment on January 31, 2023, the Company settled the contingent forward contract and received cash at an exchange rate of 1.205 USD to British Pounds Sterling.

The location and the fair value of the foreign currency contract in the consolidated balance sheet as of December 31, 2022 was as follows:


(in thousands)	Balance Sheet Location	2022
Derivative Contracts:
Foreign currency contract	Accrued liabilities	$	930

The fair value of the foreign currency contract was based on dealer quotes of market forward rates, a Level 2 input on the fair value hierarchy, and reflected the amount that the Company would receive or pay for contracts involving the same attributes and maturity dates.

The following table discloses the impact of the foreign currency contract, excluding the impact of income taxes, on the Company’s statement of operations for the years ended December 31:


(in thousands)	2023		2022
Loss recognized in income	$	7,715	$	930
Location of loss recognized in income	Currency losses, net		Currency losses, net

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Intangible assets subject to amortization:
Accumulated amortization	$ (85,199)	$ (59,375)
Net book value	130,709
Intangible Assets, Net (Including Goodwill) [Abstract]
Gross carrying amount	504,908	478,500
Accumulated amortization	(85,199)	(59,375)
Net book value	419,709	419,125
Trade name – Mobile Mini
Indefinite-lived intangible assets:
Gross carrying amount	164,000	164,000
Trade name – WillScot
Indefinite-lived intangible assets:
Gross carrying amount	$ 125,000	$ 125,000
Customer Relationships
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining life (in years)	4 years 6 months	5 years 6 months
Intangible assets subject to amortization:
Gross carrying amount	$ 214,408	$ 188,000
Accumulated amortization	(84,324)	(58,750)
Net book value	130,084	129,250
Intangible Assets, Net (Including Goodwill) [Abstract]
Accumulated amortization	$ (84,324)	$ (58,750)
Technology
Finite-Lived Intangible Assets [Line Items]
Weighted average remaining life (in years)	2 years 6 months	3 years 6 months
Intangible assets subject to amortization:
Gross carrying amount	$ 1,500	$ 1,500
Accumulated amortization	(875)	(625)
Net book value	625	875
Intangible Assets, Net (Including Goodwill) [Abstract]
Accumulated amortization	$ (875)	$ (625)

Rental Equipment, net

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Rental Equipment, net

Rental equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Modular space units	$	3,541,451	$	3,197,779
Portable storage units	1,009,059		849,193
Value added products	204,933		203,444
Total rental equipment	4,755,443		4,250,416
Less: accumulated depreciation	(1,374,128)		(1,173,129)
Rental equipment, net	$	3,381,315	$	3,077,287

Property, Plant and Equipment, net

Property, plant and equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Land, buildings, and leasehold improvements	$	178,117	$	174,322
Vehicles and equipment	233,793		167,337
Office furniture, fixtures and software	109,460		106,747
Total property, plant and equipment	521,370		448,406
Less: accumulated depreciation	(180,483)		(143,747)
Property, plant and equipment, net	$	340,887	$	304,659

Depreciation expense related to property, plant and equipment was $47.1 million, $38.6 million, and $37.5 million for the years ended December 31, 2023, 2022 and 2021, respectively. The depreciation expense for these assets was presented in other depreciation and amortization in the consolidated statements of operations.

As of December 31, 2023 and 2022, the gross cost of property, plant and equipment assets under finance leases was $133.3 million and $84.7 million, respectively, with related accumulated depreciation of $40.8 million and $26.9 million, respectively.

Income Taxes - Schedule of Components of Deferred Income Taxes (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets
Deferred interest expense	$ 116,982	$ 133,223
Employee benefit plans	9,079	6,233
Accrued liabilities	5,996	8,043
Allowance for credit losses	21,964	15,143
Deferred revenue	57,494	50,531
Operating lease liability	61,849	59,740
Other	5,006	6,127
Tax loss carryforwards	99,676	233,133
Deferred tax assets, gross	378,046	512,173
Valuation allowance	(1,430)	(2,245)
Net deferred income tax asset	376,616	509,928
Deferred tax liabilities
Rental equipment and other property, plant and equipment	(808,873)	(770,964)
Intangible assets	(60,358)	(84,390)
Right of use asset	(61,653)	(59,258)
Deferred gain	0	(26,691)
Deferred tax liability	(930,884)	(941,303)
Net deferred income tax liability	$ (554,268)	$ (431,375)

Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2023

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill Activity

Changes in the carrying amount of goodwill were as follows:


(in thousands)	Modular		Storage		Total
Balance at December 31, 2021	$	521,049	$	492,552	$	1,013,601
Effects of movements in foreign exchange rates	(2,172)		—		(2,172)
Balance at December 31, 2022	518,877		492,552		1,011,429
Additions from acquisitions	61,111		103,391		164,502
Effects of movements in foreign exchange rates	704		—		704
Balance at December 31, 2023	$	580,692	$	595,943	$	1,176,635

Schedule of Finite Lived Intangible Assets

Intangible assets other than goodwill at December 31, consisted of the following:


	December 31, 2023
(in thousands)	Weighted average remaining life (in years)	Gross carrying amount		Accumulated amortization		Net book value
Intangible assets subject to amortization:
Customer Relationships	4.5	$	214,408	$	(84,324)	$	130,084
Technology	2.5	1,500		(875)		625
Indefinite-lived intangible assets:
Trade name – Mobile Mini		164,000		—		164,000
Trade name – WillScot		125,000		—		125,000
Total intangible assets other than goodwill		$	504,908	$	(85,199)	$	419,709


	December 31, 2022
(in thousands)	Weighted average remaining life (in years)	Gross carrying amount		Accumulated amortization		Net book value
Intangible assets subject to amortization:
Customer Relationships	5.5	$	188,000	$	(58,750)	$	129,250
Technology	3.5	1,500		(625)		875
Indefinite-lived intangible assets:
Trade name - Mobile Mini		164,000		—		164,000
Trade name - WillScot		125,000		—		125,000
Total intangible assets other than goodwill		$	478,500	$	(59,375)	$	419,125

Schedule of Indefinite Lived Intangible Assets

Intangible assets other than goodwill at December 31, consisted of the following:


	December 31, 2023
(in thousands)	Weighted average remaining life (in years)	Gross carrying amount		Accumulated amortization		Net book value
Intangible assets subject to amortization:
Customer Relationships	4.5	$	214,408	$	(84,324)	$	130,084
Technology	2.5	1,500		(875)		625
Indefinite-lived intangible assets:
Trade name – Mobile Mini		164,000		—		164,000
Trade name – WillScot		125,000		—		125,000
Total intangible assets other than goodwill		$	504,908	$	(85,199)	$	419,709


	December 31, 2022
(in thousands)	Weighted average remaining life (in years)	Gross carrying amount		Accumulated amortization		Net book value
Intangible assets subject to amortization:
Customer Relationships	5.5	$	188,000	$	(58,750)	$	129,250
Technology	3.5	1,500		(625)		875
Indefinite-lived intangible assets:
Trade name - Mobile Mini		164,000		—		164,000
Trade name - WillScot		125,000		—		125,000
Total intangible assets other than goodwill		$	478,500	$	(59,375)	$	419,125

Schedule of Finite-Lived Intangible Assets Amortization Expense

As of December 31, 2023, the expected future amortization expense for intangible assets is as follows:


(in thousands)	Amortization Expense
2024	$	29,122
2025	29,122
2026	28,997
2027	28,684
2028	14,784

Total	$	130,709

- Definition

Tabular disclosure of goodwill by reportable segment and in total which includes a rollforward schedule.

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+ Details

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Statement of Comprehensive Income [Abstract]
Net income	$ 476,457	$ 339,540	$ 160,144
Other comprehensive income (loss):
Foreign currency translation adjustment, net of income tax benefit of $—, $— and $60 for the years ended December 31, 2023, 2022 and 2021, respectively	14,091	(44,548)	(880)
Net gain on derivatives, net of income tax expense of $1,088, $1,171 and $2,661 for the years ended December 31, 2023, 2022 and 2021, respectively	3,263	3,497	9,016
Total other comprehensive income (loss)	17,354	(41,051)	8,136
Total comprehensive income	$ 493,811	$ 298,489	$ 168,280

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details

Consolidated Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Total revenues	$ 2,364,767	$ 2,142,623	$ 1,672,980
Costs:
Depreciation of rental equipment	265,733	256,719	218,790
Gross profit	1,333,870	1,135,482	844,703
Expenses:
Selling, general and administrative	596,090	567,407	480,407
Other depreciation and amortization	72,921	62,380	61,777
Currency losses, net	6,754	886	427
Other (income) expense, net	(15,354)	(6,673)	1,715
Operating income	673,459	511,482	300,377
Interest expense	205,040	146,278	116,358
Fair value loss on common stock warrant liabilities	0	0	26,597
Loss on extinguishment of debt	0	0	5,999
Income from continuing operations before income tax	468,419	365,204	151,423
Income tax expense from continuing operations	126,575	88,863	36,528
Income from continuing operations	341,844	276,341	114,895
Discontinued operations:
Income from discontinued operations before income tax	4,003	63,468	58,267
Gain on sale of discontinued operations	176,078	35,456	0
Income tax expense from discontinued operations	45,468	35,725	13,018
Income from discontinued operations	134,613	63,199	45,249
Net income	$ 476,457	$ 339,540	$ 160,144
Earnings per share from continuing operations attributable to WillScot Mobile Mini common shareholders:
Basic (in USD per share)	$ 1.72	$ 1.27	$ 0.51
Diluted (in USD per share)	1.69	1.25	0.49
Earnings per share from discontinued operations attributable to WillScot Mobile Mini common shareholders:
Basic (in USD per share)	0.68	0.30	0.20
Diluted (in USD per share)	0.67	0.28	0.20
Earnings per share attributable to WillScot Mobile Mini common shareholders:
Basic (in USD per share)	2.40	1.57	0.71
Diluted (in USD per share)	$ 2.36	$ 1.53	$ 0.69
Weighted average shares:
Basic (in shares)	198,554,885	216,808,577	226,518,931
Diluted (in shares)	201,849,836	221,399,162	232,793,902
Total Leasing And Product And Service Revenues/Costs
Revenues:
Total revenues	$ 2,364,767	$ 2,142,623	$ 1,672,980
Leasing Revenue
Revenues:
Leasing	1,833,935	1,621,690	1,252,490
Costs:
Leasing	398,467	376,868	282,576
Delivery and installation
Revenues:
Revenues	437,179	429,152	321,129
Total revenues	437,179	429,152	321,129
Costs:
Cost of sales	317,117	322,636	267,533
New units
Revenues:
Revenues	48,129	40,338	46,993
Total revenues	48,129	40,338	46,993
Costs:
Cost of sales	26,439	24,011	31,348
Rental units
Revenues:
Revenues	45,524	51,443	52,368
Total revenues	45,524	51,443	52,368
Costs:
Cost of sales	$ 23,141	$ 26,907	$ 28,030

Summary of Significant Accounting Policies - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Nov. 29, 2022
Business Acquisition [Line Items]
Matching contributions to defined contribution plans	$ 14,100,000	$ 13,800,000	$ 10,900,000
Shares authorized under plan (in shares)	6,488,988
Billing period term	28 days
Deferred revenue	$ 222,500,000	195,800,000
Customer deposits	2,000,000	8,000,000
Advertising and promotion expense	$ 10,500,000	$ 8,500,000	$ 7,600,000
Warrants outstanding				$ 0
Minimum
Business Acquisition [Line Items]
Operating lease term	1 month
Maximum
Business Acquisition [Line Items]
Operating lease term	60 months
Average
Business Acquisition [Line Items]
Operating lease term	10 months
RSAs
Business Acquisition [Line Items]
Vesting period	1 year
Granted (in shares)	28,946	35,244	44,708
Vested (in shares)	35,244	36,176	57,448
Time-Based Restricted Stock Units
Business Acquisition [Line Items]
Vesting period	4 years
Granted (in shares)	213,388	377,804	415,737
Vested (in shares)	322,483	478,906	671,643
Performance-Based RSUs
Business Acquisition [Line Items]
Performance period	3 years
Granted (in shares)	376,826	745,079	977,645
Vested (in shares)	293,934	313,152	10,886
Performance-Based RSUs \| Awards Granted 2021
Business Acquisition [Line Items]
TSR payout percentage, minimum	0.00%
TSR payout percentage, maximum	200.00%
TSR payout percentage, target	100.00%
TSR, target	50.00%
TSR, minimum	25.00%
TSR, maximum	85.00%
Granted (in shares)	555,790
Share price (in USD per share)	$ 47.5
Performance-Based RSUs \| Awards Granted in 2020 and Prior
Business Acquisition [Line Items]
TSR payout percentage, minimum	0.00%
TSR payout percentage, maximum	150.00%
TSR payout percentage, target	100.00%
TSR, target	50.00%
TSR, minimum	25.00%
TSR, maximum	75.00%
Performance-Based RSUs \| Minimum \| Awards Granted 2021
Business Acquisition [Line Items]
Performance period	4 years 6 months
Performance-Based RSUs \| Maximum \| Awards Granted 2021
Business Acquisition [Line Items]
Performance period	4 years 9 months 18 days
Unrestricted Stock \| Minimum \| Awards Granted 2021
Business Acquisition [Line Items]
Vested (in shares)	0
Share price (in USD per share)	$ 42.5
Unrestricted Stock \| Maximum \| Awards Granted 2021
Business Acquisition [Line Items]
Vested (in shares)	1,333,334
Share price (in USD per share)	$ 60
Stock Options
Business Acquisition [Line Items]
Vesting period	4 years
Expiration period	10 years

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets
Cash and cash equivalents	$ 10,958	$ 7,390
Trade receivables, net of allowance for credit losses at December 31, 2023 and December 31, 2022 of $81,656 and $57,048, respectively	451,130	409,766
Inventories	47,406	41,030
Prepaid expenses and other current assets	57,492	31,635
Assets held for sale – current	2,110	31,220
Total current assets	569,096	521,041
Rental equipment, net	3,381,315	3,077,287
Property, plant and equipment, net	340,887	304,659
Operating lease assets	245,647	219,405
Goodwill	1,176,635	1,011,429
Intangible assets, net	419,709	419,125
Other non-current assets	4,626	6,683
Assets held for sale – non-current	0	268,022
Total long-term assets	5,568,819	5,306,610
Total assets	6,137,915	5,827,651
Liabilities and equity
Accounts payable	86,123	109,349
Accrued expenses	129,621	109,542
Accrued employee benefits	45,564	56,340
Deferred revenue and customer deposits	224,518	203,793
Operating lease liabilities - current	57,408	50,499
Current portion of long-term debt	18,786	13,324
Liabilities held for sale – current	0	19,095
Total current liabilities	562,020	561,942
Long-term debt	3,538,516	3,063,042
Deferred tax liabilities	554,268	401,453
Operating lease liabilities – non-current	187,837	169,618
Other non-current liabilities	34,024	18,537
Liabilities held for sale – non-current	0	47,759
Long-term liabilities	4,314,645	3,700,409
Total liabilities	4,876,665	4,262,351
Preferred Stock: $0.0001 par, 1,000,000 shares authorized and zero shares issued and outstanding at December 31, 2023 and 2022	0	0
Common Stock: $0.0001 par, 500,000,000 shares authorized and 189,967,135 and 207,951,682 shares issued and outstanding at December 31, 2023 and December 31, 2022, respectively	20	21
Additional paid-in-capital	2,089,091	2,886,951
Accumulated other comprehensive loss	(52,768)	(70,122)
Accumulated deficit	(775,093)	(1,251,550)
Total shareholders' equity	1,261,250	1,565,300
Total liabilities and shareholders' equity	$ 6,137,915	$ 5,827,651

Revenue

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Revenue

Revenue Disaggregation

Geographic Areas

The Company had total revenue in the following geographic areas for the years ended December 31, as follows:


	Years Ended December 31,
(in thousands)	2023		2022		2021
US	$	2,219,561	$	1,998,796	$	1,542,076
Canada	120,123		125,536		116,070
Mexico	25,083		18,291		14,834
Total revenues	$	2,364,767	$	2,142,623	$	1,672,980

Major Product and Service Lines

Equipment leasing is the Company's core business and the primary driver of the Company's revenue and cash flows. This includes turnkey temporary modular space and portable storage units along with VAPS, which include furniture, steps, ramps, basic appliances, internet connectivity devices, integral tool racking, heavy duty capacity shelving, workstations, electrical and lighting products and other items used by customers in connection with the Company's products. The Company also offers its lease customers a damage waiver program that protects them in case the leased unit is damaged. Leasing is complemented by new unit sales and sales of rental units. In connection with its leasing and sales activities, the Company provides services including delivery and installation, maintenance and ad hoc services and removal services at the end of lease transactions. The Company’s revenue by major product and service line for the years ended December 31, was as follows:


	Years Ended December 31,
(in thousands)	2023		2022		2021
Modular space leasing revenue	$	953,822	$	840,926	$	697,852
Portable storage leasing revenue	396,781		361,197		233,868
VAPS and third party leasing revenues(a)	391,948		343,625		263,021
Other leasing-related revenue(b)	91,384		75,942		57,749
Leasing revenue	1,833,935		1,621,690		1,252,490
Delivery and installation revenue	437,179		429,152		321,129
Total leasing and services revenue	2,271,114		2,050,842		1,573,619
New unit sales revenue	48,129		40,338		46,993
Rental unit sales revenue	45,524		51,443		52,368
Total revenues	$	2,364,767	$	2,142,623	$	1,672,980

(a) Includes $23.9 million, $25.3 million, and $17.1 million of VAPS service revenue for the years ended December 31, 2023, 2022 and 2021, respectively.

(b) Includes primarily damage billings, delinquent payment charges, and other processing fees.

Leasing and Services Revenue

The majority of revenue (77%, 75%, and 74% for the years ended December 31, 2023, 2022 and 2021, respectively) is generated by lease income subject to the guidance of ASC 842. The remaining revenue is generated by performance obligations in contracts with customers for services or sale of units subject to the guidance in ASC 606.


(in thousands)	Operating Leases
2024	$	367,965
2025	129,048
2026	42,698
2027	17,988
2028	7,887
Thereafter	5,399
Total	$	570,985

Receivables

The Company manages credit risk associated with its accounts receivables at the customer level. Because the same customers generate the revenues that are accounted for under both ASC 606 and ASC 842, the discussions below on credit risk and the Company's allowance for credit losses address the Company's total revenues.

Concentration of credit risk with respect to the Company's receivables is limited because of a large number of geographically diverse customers who operate in a variety of end user markets. No single customer accounted for more than 1.0% and 1.7% of the Company’s receivables at December 31, 2023 and 2022, respectively. The Company's top five customers with the largest open receivables balances represented 4.3% and 5.4% of the total receivables balance as of December 31, 2023 and 2022, respectively. The Company manages credit risk through credit approvals, credit limits, and other monitoring procedures.

The Company's allowance for credit losses reflects its estimate of the amount of receivables that it will be unable to collect. The estimated losses are calculated using the loss rate method based upon a review of outstanding receivables, related aging, and historical collection experience. The Company's estimates reflect changing circumstances, and the Company may be required to increase or decrease its allowance. During the years ended December 31, 2023, 2022 and 2021, the Company recognized bad debt expense to reflect changes in the allowance for credit losses of $23.4 million, $10.4 million, and $16.4 million, respectively, within SG&A expense in its consolidated statements of operations. For the years ended December 31, 2023, 2022 and 2021, the provision for credit losses included $25.2 million, $23.7 million and $19.8 million, respectively, recorded as a reduction to revenue for the provision of specific receivables whose collection was not considered probable.

Contract Assets and Liabilities

When customers are billed in advance for services, the Company defers recognition of revenue until the related services are performed, which generally occurs at the end of the contract. The balance sheet classification of deferred revenue is determined based on the contractual lease term. For contracts that continue beyond their initial contractual lease term, revenue continues to be deferred until the services are performed. As of December 31, 2023 and 2022, the Company had approximately $124.1 million and $102.2 million, respectively, of deferred revenue related to services billed in advance. During the years ended December 31, 2023, 2022 and 2021, $67.6 million, $47.2 million and $38.8 million, respectively, of deferred revenue billed in advance was recognized as revenue.

The Company does not have material contract assets, and it did not recognize any material impairments of any contract assets.

The Company's uncompleted contracts with customers have unsatisfied (or partially satisfied) performance obligations. For the future services revenues that are expected to be recognized within twelve months, the Company has elected to utilize the optional disclosure exemption made available regarding transaction price allocated to unsatisfied (or partially unsatisfied) performance obligations. The transaction price for performance obligations that will be completed in greater than twelve months is variable based on the market rate in place at the time those services are provided, and therefore, the Company is applying the optional exemption to omit disclosure of such amounts.

The primary costs to obtain contracts for new and rental unit sales with the Company's customers are commissions. The Company pays its sales force commissions on the sale of new and rental units. For new and rental unit sales, the period benefited by each commission is less than one year. As a result, the Company has applied the practical expedient for incremental costs of obtaining a sales contract and expenses commissions as incurred.

- Definition

The entire disclosure of revenue from contract with customer to transfer good or service and to transfer nonfinancial asset. Includes, but is not limited to, disaggregation of revenue, credit loss recognized from contract with customer, judgment and change in judgment related to contract with customer, and asset recognized from cost incurred to obtain or fulfill contract with customer. Excludes insurance and lease contracts.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-9

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-10

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Section 50
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-URI https://asc.fasb.org//1943274/2147479806/606-10-50-15

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 12
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 12
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479806/606-10-50-12

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-Paragraph 12
-Subparagraph (c)
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 606
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-Name Accounting Standards Codification
-Section 50
-Paragraph 13
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Topic 606
-Publisher FASB
-URI https://asc.fasb.org//606/tableOfContent

+ Details

Warrants

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Warrants

Equity

Preferred Stock

WillScot Mobile Mini's certificate of incorporation authorizes the issuance of 1,000,000 shares of Preferred Stock with a par value of $0.0001 per share. As of December 31, 2023 and 2022, the Company had zero shares of Preferred Stock issued and outstanding.

Common Stock

WillScot Mobile Mini's certificate of incorporation authorizes the issuance of 500,000,000 shares of Common Stock with a par value of $0.0001 per share. The Company had 189,967,135 shares of Common Stock issued and outstanding as of December 31, 2023. The outstanding shares of the Company's Common Stock are duly authorized, validly issued, fully paid and non-assessable.

In connection with stock compensation vesting and stock option exercises described in Note 16, and the warrant exercises described in Note 12, the Company issued 549,272, 3,847,905 and 6,752,647 shares of Common Stock during the years ended December 31, 2023, 2022 and 2021, respectively.

Stock Repurchase Program

In May 2023, the Board of Directors approved a reset of the share repurchase program authorizing the Company to repurchase up to $1.0 billion of its outstanding shares of Common Stock and equivalents. The stock repurchase program does not obligate the Company to purchase any particular number of shares, and the timing and exact amount of any repurchases will depend on various factors, including market pricing, business, legal, accounting, and other considerations. The Company may repurchase its shares in open market transactions or through privately negotiated transactions in accordance with federal securities laws, at the Company's discretion. The repurchase program, which has no expiration date, may be increased, suspended, or terminated at any time. The program is expected to be implemented over the course of several years and will be conducted subject to the covenants in the agreements governing indebtedness.

In August 2022, the Inflation Reduction Act of 2022 was enacted into law and imposed a nondeductible 1% excise tax on the net value of certain stock repurchases made after December 31, 2022. The Company reflected the applicable excise tax in equity as part of the cost basis of the stock repurchased and recorded a corresponding liability for the excise taxes payable in accrued expenses on the consolidated balance sheet.

During the year ended December 31, 2023, the Company repurchased 18,533,819 shares of Common Stock for $810.8 million. During the year ended December 31, 2022, the Company repurchased 19,854,424 shares of Common Stock and stock equivalents for $756.9 million. As of December 31, 2023, $498.2 million of the authorization for future repurchases of our common stock remained available.

Accumulated Other Comprehensive Loss

The changes in accumulated other comprehensive loss ("AOCI"), net of tax, for the years ended December 31, 2023, 2022 and 2021, were as follows:


(in thousands)	Foreign Currency Translation		Unrealized (gains) losses on hedging activities		Total
Balance at December 31, 2020	$	(24,694)	$	(12,513)	$	(37,207)
Other comprehensive loss before reclassifications	(880)		(2,985)		(3,865)
Reclassifications from AOCI to income (a)	—		12,001		12,001


Balance at December 31, 2021	(25,574)		(3,497)		(29,071)
Other comprehensive loss before reclassifications	(44,548)		(1,033)		(45,581)
Reclassifications from AOCI to income (a)	—		4,530		4,530
Balance at December 31, 2022	(70,122)		—		(70,122)
Other comprehensive income before reclassifications	14,091		14,813		28,904
Reclassifications from AOCI to income (a)	—		(11,550)		(11,550)
Balance at December 31, 2023	$	(56,031)	$	3,263	$	(52,768)

(a) For the years ended December 31, 2023, 2022 and 2021, $(11.6) million, $4.5 million and $12.0 million, respectively, was reclassified from AOCI into the consolidated statements of operations within interest expense related to the interest rate swaps discussed in Note 14. For the years ended December 31, 2023, 2022 and 2021, the Company recorded tax benefits of $2.9 million, $1.1 million and $3.0 million, respectively, associated with this reclassification.

Warrants

2015 Private Warrants

The Company issued warrants to purchase its Common Stock in a private placement concurrently with its initial public offering (the “2015 Private Warrants”). The 2015 Private Warrants were purchased at a price of $0.50 per unit for an aggregate purchase price of $9.75 million. If held by certain original investors (or their permitted assignees), the 2015 Private Warrants could be exercised on a cashless basis and were not subject to redemption.

During the year ended December 31, 2021, 3,055,000 of the 2015 Private Warrants were repurchased for $25.5 million and cancelled, and 9,655,000 warrants were exercised on a cashless basis, resulting in the issuance of 2,939,898 shares of Common Stock. As a result of these transactions, effective May 2021, no 2015 Private Warrants were outstanding.

2018 Warrants

In connection with the acquisition of Modular Space Holdings, Inc. ("ModSpace") in 2018, the Company issued warrants to purchase approximately 10.0 million shares of its Common Stock (the "2018 Warrants") to former shareholders of ModSpace. Each 2018 Warrant entitled the holder to purchase one share of Common Stock at an exercise price of $15.50 per share, subject to potential adjustment. The 2018 Warrants expired on November 29, 2022.

During the year ended December 31, 2021, 254,373 of the 2018 Warrants were repurchased for $2.9 million and cancelled. In addition, during the year ended December 31, 2021, 5,397,695 of the 2018 Warrants were exercised on a cashless basis, resulting in the issuance of 2,835,968 shares of Common Stock.

During the year ended December 31, 2022, 33,965 of the 2018 Warrants were repurchased for $0.6 million and cancelled. In addition, during the year ended December 31, 2022, 4,011,665 of the 2018 Warrants were exercised on a cashless basis, resulting in the issuance of 2,590,940 shares of Common Stock. The remaining 32,543 of 2018 Warrants expired on November 29, 2022. Effective November 29, 2022, no 2018 Warrants were outstanding.

The Company accounted for its warrants as follows: (i) the 2015 Private Warrants as liabilities through their final repurchase or exercise in May 2021 and (ii) subsequent to June 30, 2020, the 2018 Warrants were equity classified through their expiration in November 2022.

- Definition

The entire disclosure for equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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-Paragraph 13
-Subparagraph (h)
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-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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-Name Accounting Standards Codification
-Section 50
-Paragraph 14
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-14

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481062/946-235-50-2

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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-URI https://asc.fasb.org//1943274/2147481004/946-505-50-6

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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-Paragraph 1
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-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
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-Paragraph 1
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Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//505/tableOfContent

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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-URI https://asc.fasb.org//1943274/2147481112/505-10-50-13

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
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Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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-Paragraph 13
-Subparagraph (i)
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Reference 14: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org//1943274/2147481112/505-10-50-14

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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-Name Accounting Standards Codification
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Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Topic 505
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481112/505-10-50-18

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
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-Publisher FASB
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+ Details

Leases - Schedule of Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Finance Lease Expense
Amortization of finance lease assets	$ 16,945	$ 13,900	$ 12,602
Interest on obligations under finance leases	3,777	1,899	1,406
Total finance lease expense	20,722	15,799	14,008
Operating Lease Expense
Total operating lease expense	107,058	110,230	96,041
Cost of leasing and services
Operating Lease Expense
Fixed lease expense	1,396	2,797	3,979
Short-term lease expense	26,010	32,947	22,335
Variable lease expense	2,109	5,388	7,794
Selling, general and administrative
Operating Lease Expense
Fixed lease expense	67,374	60,017	56,005
Short-term lease expense	1,789	1,792	794
Variable lease expense	$ 8,380	$ 7,289	$ 5,134

Segment Reporting - Schedule of Segment Reporting and Geographic Areas (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Total revenues	$ 2,364,767	$ 2,142,623	$ 1,672,980
Costs:
Depreciation of rental equipment	265,733	256,719	218,790
Gross profit	1,333,870	1,135,482	844,703
Other selected data:
Adjusted EBITDA from discontinued operations	1,061,465	883,874	649,604
Selling, general and administrative expense	596,090	567,407	480,407
Purchases of rental equipment and refurbishments	226,605	397,376	232,921
Total revenues
Revenues:
Total revenues	2,364,767	2,142,623	1,672,980
Leasing
Revenues:
Leasing	1,833,935	1,621,690	1,252,490
Costs:
Leasing	398,467	376,868	282,576
Delivery and installation
Revenues:
Revenues	437,179	429,152	321,129
Total revenues	437,179	429,152	321,129
Costs:
Cost of sales	317,117	322,636	267,533
New units
Revenues:
Revenues	48,129	40,338	46,993
Total revenues	48,129	40,338	46,993
Costs:
Cost of sales	26,439	24,011	31,348
Rental units
Revenues:
Revenues	45,524	51,443	52,368
Total revenues	45,524	51,443	52,368
Costs:
Cost of sales	23,141	26,907	28,030
Unallocated Costs
Other selected data:
Adjusted EBITDA from discontinued operations		0	0
Selling, general and administrative expense	49,418	46,738	63,939
Purchases of rental equipment and refurbishments		0	0
Modular \| Operating Segments
Costs:
Depreciation of rental equipment	219,869	221,433	190,805
Gross profit	700,226	583,837	471,656
Other selected data:
Adjusted EBITDA from discontinued operations	598,354	508,343	404,577
Selling, general and administrative expense	329,068	304,937	256,168
Purchases of rental equipment and refurbishments	184,993	279,079	187,495
Modular \| Operating Segments \| Total revenues
Revenues:
Total revenues	1,495,666	1,342,033	1,120,483
Modular \| Operating Segments \| Leasing
Revenues:
Leasing	1,137,685	992,316	827,677
Costs:
Leasing	311,501	273,233	219,462
Modular \| Operating Segments \| Delivery and installation
Revenues:
Revenues	283,433	272,749	213,818
Costs:
Cost of sales	224,671	221,784	191,011
Modular \| Operating Segments \| New units
Revenues:
Revenues	41,777	33,985	40,322
Costs:
Cost of sales	23,599	20,475	27,386
Modular \| Operating Segments \| Rental units
Revenues:
Revenues	32,771	42,983	38,666
Costs:
Cost of sales	15,800	21,271	20,163
Storage \| Operating Segments
Costs:
Depreciation of rental equipment	45,864	35,286	27,985
Gross profit	633,644	551,645	373,047
Other selected data:
Adjusted EBITDA from discontinued operations	463,111	375,531	245,027
Selling, general and administrative expense	217,604	215,732	160,300
Purchases of rental equipment and refurbishments	41,612	118,297	45,426
Storage \| Operating Segments \| Total revenues
Revenues:
Total revenues	869,101	800,590	552,497
Storage \| Operating Segments \| Leasing
Revenues:
Leasing	696,250	629,374	424,813
Costs:
Leasing	86,966	103,635	63,114
Storage \| Operating Segments \| Delivery and installation
Revenues:
Revenues	153,746	156,403	107,311
Costs:
Cost of sales	92,446	100,852	76,522
Storage \| Operating Segments \| New units
Revenues:
Revenues	6,352	6,353	6,671
Costs:
Cost of sales	2,840	3,536	3,962
Storage \| Operating Segments \| Rental units
Revenues:
Revenues	12,753	8,460	13,702
Costs:
Cost of sales	$ 7,341	$ 5,636	$ 7,867

Cover Page - USD ($) $ in Billions	12 Months Ended
Cover Page - USD ($) $ in Billions	Dec. 31, 2023	Feb. 14, 2024	Jun. 30, 2023
Cover [Abstract]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2023
Current Fiscal Year End Date	--12-31
Document Transition Report	false
Entity File Number	001-37552
Entity Registrant Name	WILLSCOT MOBILE MINI HOLDINGS CORP.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	82-3430194
Entity Address, Address Line One	4646 E Van Buren St.
Entity Address, Address Line Two	Suite 400
Entity Address, City or Town	Phoenix
Entity Address, State or Province	AZ
Entity Address, Postal Zip Code	85008
City Area Code	480
Local Phone Number	894-6311
Title of 12(b) Security	Common Stock, par value $0.0001 per share
Trading Symbol	WSC
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Document Financial Statement Error Correction Flag	false
Entity Shell Company	false
Entity Public Float			$ 9.3
Entity Common Stock, Shares Outstanding		189,970,639
Documents Incorporated by Reference	The information required by Part III of this Report, to the extent not set forth herein, is incorporated herein by reference from the registrant's definitive proxy statement for the 2024 annual meeting of stockholders, which definitive proxy statement will be filed with the Securities and Exchange Commission within 120 days after the end of the fiscal year to which this Report relates.
Amendment Flag	false
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Entity Central Index Key	0001647088

Stock-Based Compensation - Schedule of Restricted Stock Award Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Shares
Forfeited (in shares)			(8,532)
Weighted-Average Grant Date Fair Value
Forfeited (in USD per share)			$ 29.30
Restricted Stock Awards
Number of Shares
Beginning Balance (in shares)	35,244	36,176	57,448
Granted (in shares)	28,946	35,244	44,708
Vested (in shares)	(35,244)	(36,176)	(57,448)
Ending Balance (in shares)	28,946	35,244	36,176
Weighted-Average Grant Date Fair Value
Beginning Balance (in USD per share)	$ 37.17	$ 29.30	$ 11.75
Granted (in USD per share)	44.44	37.17	29.30
Vested (in USD per share)	37.17	29.30	11.75
Ending Balance (in USD per share)	$ 44.44	$ 37.17	$ 29.30

Revenue - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 2,364,767	$ 2,142,623	$ 1,672,980
Leasing revenue
Disaggregation of Revenue [Line Items]
Total revenues	1,833,935	1,621,690	1,252,490
Modular space leasing revenue
Disaggregation of Revenue [Line Items]
Total revenues	953,822	840,926	697,852
Portable storage leasing revenue
Disaggregation of Revenue [Line Items]
Total revenues	396,781	361,197	233,868
VAPS and third party leasing revenue
Disaggregation of Revenue [Line Items]
Total revenues	391,948	343,625	263,021
Other leasing-related revenue
Disaggregation of Revenue [Line Items]
Total revenues	91,384	75,942	57,749
Leasing and Services
Disaggregation of Revenue [Line Items]
Total revenues	2,271,114	2,050,842	1,573,619
Delivery and installation revenue
Disaggregation of Revenue [Line Items]
Total revenues	437,179	429,152	321,129
New unit sales revenue
Disaggregation of Revenue [Line Items]
Total revenues	48,129	40,338	46,993
Rental unit sales revenue
Disaggregation of Revenue [Line Items]
Total revenues	45,524	51,443	52,368
VAPS service revenue
Disaggregation of Revenue [Line Items]
Total revenues	23,900	25,300	17,100
US
Disaggregation of Revenue [Line Items]
Total revenues	2,219,561	1,998,796	1,542,076
Canada
Disaggregation of Revenue [Line Items]
Total revenues	120,123	125,536	116,070
Mexico
Disaggregation of Revenue [Line Items]
Total revenues	$ 25,083	$ 18,291	$ 14,834

Leases - Schedule of Lease Terms and Discount Rates (Details)	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Weighted-average remaining lease term - operating leases	5 years 4 months 24 days	5 years 9 months 18 days
Weighted-average discount rate - operating leases	5.90%	5.40%
Weighted-average remaining lease term - finance leases	5 years	5 years 1 month 6 days
Weighted-average discount rate - finance leases	4.80%	3.40%

Equity (Tables)

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Loss

The changes in accumulated other comprehensive loss ("AOCI"), net of tax, for the years ended December 31, 2023, 2022 and 2021, were as follows:


(in thousands)	Foreign Currency Translation		Unrealized (gains) losses on hedging activities		Total
Balance at December 31, 2020	$	(24,694)	$	(12,513)	$	(37,207)
Other comprehensive loss before reclassifications	(880)		(2,985)		(3,865)
Reclassifications from AOCI to income (a)	—		12,001		12,001


Balance at December 31, 2021	(25,574)		(3,497)		(29,071)
Other comprehensive loss before reclassifications	(44,548)		(1,033)		(45,581)
Reclassifications from AOCI to income (a)	—		4,530		4,530
Balance at December 31, 2022	(70,122)		—		(70,122)
Other comprehensive income before reclassifications	14,091		14,813		28,904
Reclassifications from AOCI to income (a)	—		(11,550)		(11,550)
Balance at December 31, 2023	$	(56,031)	$	3,263	$	(52,768)

Debt - Schedule of Maturities of Debt and Lease Obligation (Details) $ in Thousands	Dec. 31, 2023 USD ($)
Debt Disclosure [Abstract]
2024	$ 23,927
2025	550,050
2026	23,234
2027	1,975,992
2028	522,473
Thereafter	522,138
Total	$ 3,617,814

Warrants - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
	Aug. 15, 2018	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2015	Nov. 29, 2022	May 31, 2021
2015 Public Warrants
Class of Warrant or Right [Line Items]
Purchase price for warrants (in USD per share)				$ 0.5
Purchase price for warrants				$ 9,750
Warrants repurchased and canceled (in shares)			3,055,000
Warrants repurchased and canceled			$ 25,500
Warrants exercised (in shares)			9,655,000
Issuance of common stock from the exercise of warrants (in shares)			2,939,898
Warrants outstanding (in shares)						0
2018 Warrants
Class of Warrant or Right [Line Items]
Warrants repurchased and canceled (in shares)		33,965	254,373
Warrants repurchased and canceled		$ 600	$ 2,900
Warrants exercised (in shares)		4,011,665	5,397,695
Issuance of common stock from the exercise of warrants (in shares)		2,590,940	2,835,968
Warrants outstanding (in shares)					0
Number of shares which can be exchanged per warrant (in shares)	1
Warrant exercise price (in USD per share)	$ 15.5
Warrants expired (in shares)					32,543
2018 Warrants \| ModSpace \| Warrants \| Class A Common Stock
Class of Warrant or Right [Line Items]
Purchase price paid in stock (in shares)	10,000,000

Pay vs Performance Disclosure
number in Millions

12 Months Ended

Dec. 31, 2023

USD ($)

Dec. 31, 2022

USD ($)

Dec. 31, 2021

USD ($)

Dec. 31, 2020

USD ($)

Pay vs Performance Disclosure

Pay vs Performance Disclosure, Table


Fiscal Year	Summary Compensation Table Total for PEO(1)		Compensation Actually Paid to PEO(1)(2)		Average Summary Compensation Table Total for non-PEO NEOs(1)		Average Compensation Actually Paid to non-PEO NEOs(1)(2)		Value of Initial Fixed $100 Investment Based on:				Net Income ($ millions)		Adjusted EBITDA(4) ($ millions)
Fiscal Year	Summary Compensation Table Total for PEO(1)		Compensation Actually Paid to PEO(1)(2)				Average Compensation Actually Paid to non-PEO NEOs(1)(2)		Total Shareholder Return		Peer Group Total Shareholder Return(3)		Net Income ($ millions)		Adjusted EBITDA(4) ($ millions)
(a)	(b)		(c)		(d)		(e)		(f)		(g)		(h)		(i)
2023	$	8,391,649	$	4,663,073	$	2,472,305	$	1,619,849	$	240.67	$	191.45	$	476	$	1,061
2022	$	8,594,799	$	20,813,067	$	2,444,495	$	4,501,198	$	244.29	$	149.43	$	340	$	970
2021	$	17,660,600	$	47,137,307	$	4,713,100	$	8,546,475	$	220.88	$	161.27	$	160	$	740
2020	$	6,276,605	$	9,893,532	$	2,009,027	$	3,024,177	$	125.31	$	114.85	$	74	$	534

Company Selected Measure Name

Adjusted EBITDA

Named Executive Officers, Footnote

Our principal executive officer (PEO) for 2020-2023 is Mr. Soultz. The non-PEO named executive officers reflected in columns (d) and (e) include the following individuals: Mr. Boswell (2020-2023), Mr. Lopez (2020-2023), Ms. Shanks (2020-2023), Mr. Parkes (2022-2023), Ms. Gorcyca (2023) Christopher J. Miner (2020-2022), and Kelly Williams (2020-2021).

PEO Total Compensation Amount

$ 8,391,649

$ 8,594,799

$ 17,660,600

$ 6,276,605

PEO Actually Paid Compensation Amount

$ 4,663,073

20,813,067

47,137,307

9,893,532

Adjustment To PEO Compensation, Footnote

The following amounts were deducted from / added to Summary Compensation Table (SCT) total compensation in accordance with the SEC-mandated adjustments to calculate Compensation Actually Paid (CAP) to our principal executive officer (PEO) and average CAP to our non-PEO named executive officers. The fair value of equity awards was determined using methodologies and assumptions developed in a manner substantively consistent with those used to determine the grant date fair value of such awards.

PEO SCT Total to CAP Reconciliation


Fiscal Year	2020		2021		2022		2023
SCT Total	$	6,276,605	$	17,660,600	$	8,594,799	$	8,391,649
- Change in Actuarial Present Value of Pension Plans Reported in Fiscal Year	$	—	$	—	$	—	$	—
+ Service Cost of Pension in Fiscal Year	$	—	$	—	$	—	$	—
+ Prior Service Cost of Pension in Fiscal Year	$	—	$	—	$	—	$	—
- Grant Date Fair Value of Stock Awards Granted in Fiscal Year	$	(3,593,204)	$	(14,635,168)	$	(5,103,737)	$	(5,665,871)
+ Fair Value at Fiscal Year-End of Outstanding Unvested Stock Awards Granted in Fiscal Year	$	6,223,671	$	30,020,871	$	8,174,053	$	4,131,113
± Change in Fair Value of Outstanding Unvested Stock Awards Granted in Prior Fiscal Years	$	2,694,702	$	13,368,813	$	10,303,770	$	(3,668,762)
+ Fair Value at Vesting of Stock Awards Granted in Fiscal Year That Vested During Fiscal Year	$	—	$	—	$	—	$	—
± Change in Fair Value as of Vesting Date of Stock Awards Granted in Prior Fiscal Years For Which Applicable Vesting Conditions Were Satisfied During Fiscal Year	$	(1,708,241)	$	722,191	$	(1,155,818)	$	1,474,944
- Fair Value as of Prior Fiscal Year-End of Stock Awards Granted in Prior Fiscal Years That Failed to Meet Applicable Vesting Conditions During Fiscal Year	$	—	$	—	$	—	$	—
+ Dividends Accrued During Fiscal Year	$	—	$	—	$	—	$	—
Compensation Actually Paid	$	9,893,532	$	47,137,307	$	20,813,067	$	4,663,073

Non-PEO NEO Average Total Compensation Amount

$ 2,472,305

2,444,495

4,713,100

2,009,027

Non-PEO NEO Average Compensation Actually Paid Amount

$ 1,619,849

4,501,198

8,546,475

3,024,177

Adjustment to Non-PEO NEO Compensation Footnote

Non-PEO NEO Average SCT Total to Average CAP Reconciliation


Fiscal Year	2020		2021		2022		2023
Average SCT Total	$	2,009,027	$	4,713,100	$	2,444,495	$	2,472,305
- Change in Actuarial Present Value of Pension Plans Reported in Fiscal Year	$	—	$	—	$	—	$	—
+ Service Cost of Pension in Fiscal Year	$	—	$	—	$	—	$	—
+ Prior Service Cost of Pension in Fiscal Year	$	—	$	—	$	—	$	—
- Grant Date Fair Value of Stock Awards Granted in Fiscal Year	$	(1,212,320)	$	(3,314,083)	$	(1,356,246)	$	(1,491,647)
+ Fair Value at Fiscal Year-End of Outstanding Unvested Stock Awards Granted in Fiscal Year	$	2,148,971	$	5,205,205	$	1,831,987	$	1,066,149
± Change in Fair Value of Outstanding Unvested Stock Awards Granted in Prior Fiscal Years	$	197,467	$	1,491,613	$	1,623,529	$	(633,986)
+ Fair Value at Vesting of Stock Awards Granted in Fiscal Year That Vested During Fiscal Year	$	—	$	147,770	$	208,160	$	—
± Change in Fair Value as of Vesting Date of Stock Awards Granted in Prior Fiscal Years For Which Applicable Vesting Conditions Were Satisfied During Fiscal Year	$	(118,969)	$	302,869	$	(250,726)	$	207,028
- Fair Value as of Prior Fiscal Year-End of Stock Awards Granted in Prior Fiscal Years That Failed to Meet Applicable Vesting Conditions During Fiscal Year	$	—	$	—	$	—	$	—
+ Dividends Accrued During Fiscal Year	$	—	$	—	$	—	$	—
Average Compensation Actually Paid	$	3,024,177	$	8,546,475	$	4,501,198	$	1,619,849

(i) Certain of Mr. Williams’ equity awards were modified in February 2021 as part of his Separation and Release Agreement, consistent with his employment agreement. The rules prescribed by the SEC did not specify how compensation actually paid should reflect the incremental fair value expense recorded in connection with the modification and reported in the “Stock Awards” column. As compensation actually paid is meant to track the value of an equity award over the course of its vesting period, we are not adding any additional fair value when calculating the “Change in Fair Value as of Vesting Date of Stock Awards Granted in Prior Fiscal Years For Which Applicable Vesting Conditions Were Satisfied During Fiscal Year” as we believe this methodology best reflects the value of the award to Mr. Williams.

Compensation Actually Paid vs. Total Shareholder Return

The chart below illustrates the relationship between the PEO and average Non-PEO CAP amounts and the Company’s and Peer Group’s TSR during the period 2020-2023.

https://cdn.kscope.io/7341362f02c771f38db0a9e8fbd9abc9-Image_15.jpg

Compensation Actually Paid vs. Net Income

The charts below illustrate the relationship between the PEO and Non-PEO CAP amounts and the Company’s Net Income and Adjusted EBITDA during the period 2020-2023.

https://cdn.kscope.io/7341362f02c771f38db0a9e8fbd9abc9-Image_16.jpg

Compensation Actually Paid vs. Company Selected Measure

The charts below illustrate the relationship between the PEO and Non-PEO CAP amounts and the Company’s Net Income and Adjusted EBITDA during the period 2020-2023.

https://cdn.kscope.io/7341362f02c771f38db0a9e8fbd9abc9-Image_17.jpg

Total Shareholder Return Vs Peer Group

The Peer Group for which Total Shareholder Return is provided in column (g) for each listed fiscal year consists of the constituent companies in the S&P MidCap 400 Index listed as our compensation benchmarking peer group in the Compensation Discussion & Analysis for fiscal year 2023. In 2023, Waste Connections, Inc. was added to the peer group and Duke Realty Corporation was removed as further described in the “Use of Market Data” section of our Compensation Discussion and Analysis section for fiscal year 2022.

The table below compares the indexed TSR of the current and prior Peer Group.


Year	Peer Group used in prior year	Peer Group used in current year
2023	$192	$199
2022	$149	$152
2021	$161	$166
2020	$115	$115

Tabular List, Table


Most Important Financial Measures
•Adjusted EBITDA •Stock Price •Relative TSR

Total Shareholder Return Amount

$ 240.67

244.29

220.88

125.31

Peer Group Total Shareholder Return Amount

191.45

149.43

161.27

114.85

Net Income (Loss)

$ 476,457,000

$ 339,540,000

$ 160,144,000

$ 74,000,000

Company Selected Measure Amount

1,061

970

740

534

PEO Name

Mr. Soultz

Measure:: 1

Pay vs Performance Disclosure

Name

Adjusted EBITDA

Non-GAAP Measure Description

Adjusted EBITDA is a non-GAAP financial measure and represents Adjusted EBITDA from continuing and discontinued operations at budgeted foreign exchange rates. For a discussion of our use of non-GAAP financial measures, please see the “Reconciliation of Non-GAAP Financial Measures” section in Item 7 of our Annual Report on Form 10-K for the fiscal year ended December 31, 2023.

Measure:: 2

Pay vs Performance Disclosure

Name

Stock Price

Measure:: 3

Pay vs Performance Disclosure

Name

Relative TSR

PEO | Change in Actuarial Present Value of Pension Plans Reported in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ 0

PEO | Service Cost of Pension in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

PEO | Prior Service Cost of Pension in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

PEO | Grant Date Fair Value of Stock Awards Granted in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(5,665,871)

(5,103,737)

(14,635,168)

(3,593,204)

PEO | Fair Value at Fiscal Year-End of Outstanding Unvested Stock Awards Granted in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

4,131,113

8,174,053

30,020,871

6,223,671

PEO | Change in Fair Value of Outstanding Unvested Stock Awards Granted in Prior Fiscal Years [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(3,668,762)

10,303,770

13,368,813

2,694,702

PEO | Fair Value at Vesting of Stock Awards Granted in Fiscal Year That Vested During Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

PEO | Change in Fair Value as of Vesting Date of Stock Awards Granted in Prior Fiscal Years For Which Applicable Vesting Conditions Were Satisfied During Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

1,474,944

(1,155,818)

722,191

(1,708,241)

PEO | Fair Value as of Prior Fiscal Year-End of Stock Awards Granted in Prior Fiscal Years That Failed to Meet Applicable Vesting Conditions During Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

PEO | Dividends Accrued During Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

Non-PEO NEO | Change in Actuarial Present Value of Pension Plans Reported in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

Non-PEO NEO | Service Cost of Pension in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

Non-PEO NEO | Prior Service Cost of Pension in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

Non-PEO NEO | Grant Date Fair Value of Stock Awards Granted in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(1,491,647)

(1,356,246)

(3,314,083)

(1,212,320)

Non-PEO NEO | Fair Value at Fiscal Year-End of Outstanding Unvested Stock Awards Granted in Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

1,066,149

1,831,987

5,205,205

2,148,971

Non-PEO NEO | Change in Fair Value of Outstanding Unvested Stock Awards Granted in Prior Fiscal Years [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

(633,986)

1,623,529

1,491,613

197,467

Non-PEO NEO | Fair Value at Vesting of Stock Awards Granted in Fiscal Year That Vested During Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

208,160

147,770

Non-PEO NEO | Change in Fair Value as of Vesting Date of Stock Awards Granted in Prior Fiscal Years For Which Applicable Vesting Conditions Were Satisfied During Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

207,028

(250,726)

302,869

(118,969)

Non-PEO NEO | Fair Value as of Prior Fiscal Year-End of Stock Awards Granted in Prior Fiscal Years That Failed to Meet Applicable Vesting Conditions During Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

Non-PEO NEO | Dividends Accrued During Fiscal Year [Member]

Pay vs Performance Disclosure

Adjustment to Compensation, Amount

$ 0

Segment Reporting - Narrative (Details) $ in Thousands	1 Months Ended	3 Months Ended	12 Months Ended
Segment Reporting - Narrative (Details) $ in Thousands	Jan. 31, 2024 segment	Sep. 30, 2021 USD ($)	Dec. 31, 2023 USD ($) segment	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of reportable segments \| segment			2
Revenues			$ 2,364,767	$ 2,142,623	$ 1,672,980
Gross profit			$ 1,333,870	1,135,482	844,703
Subsequent Event
Segment Reporting Information [Line Items]
Number of reportable segments \| segment	1
Transition Separation And Release Agreement
Segment Reporting Information [Line Items]
Stock compensation expense					$ 7,200
Transition Of Majority Of Portable Storage Product Business \| Modular
Segment Reporting Information [Line Items]
Revenues		$ (5,000)
Gross profit		(5,000)
Transition Of Majority Of Portable Storage Product Business \| Storage
Segment Reporting Information [Line Items]
Revenues		5,000
Gross profit		$ 5,000
Ground Level Office Businesses, Transferred From Modular Segment To Storage Segment \| Storage
Segment Reporting Information [Line Items]
Revenues				49,800
Gross profit				$ 28,500

Rental Equipment, net (Tables)

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Schedule of Rental Equipment, Net

Depreciation is computed using the straight-line method over estimated useful lives, as follows:


	Estimated Useful Life	Residual Value
Modular space units	10 - 30 years	20 - 55%
Portable storage units	7 - 30 years	20 - 55%
VAPS and other related rental equipment	1 - 10 years	0%

Depreciation is computed using the straight-line method over estimated useful lives as follows:


			Estimated Useful Life
Buildings and leasehold improvements			10 - 40 years
Vehicles, machinery, and equipment			3 - 30 years
Furniture and fixtures			3 - 10 years
Software			3 - 10 years

Rental equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Modular space units	$	3,541,451	$	3,197,779
Portable storage units	1,009,059		849,193
Value added products	204,933		203,444
Total rental equipment	4,755,443		4,250,416
Less: accumulated depreciation	(1,374,128)		(1,173,129)
Rental equipment, net	$	3,381,315	$	3,077,287

Property, plant and equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Land, buildings, and leasehold improvements	$	178,117	$	174,322
Vehicles and equipment	233,793		167,337
Office furniture, fixtures and software	109,460		106,747
Total property, plant and equipment	521,370		448,406
Less: accumulated depreciation	(180,483)		(143,747)
Property, plant and equipment, net	$	340,887	$	304,659

Derivatives (Tables)

12 Months Ended

Dec. 31, 2023

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of Fair Value of Derivative Instruments Designated as Hedges in the Consolidated Balance Sheet

The location and the fair value of derivative instruments designated as hedges were as follows:


(in thousands)	Balance Sheet Location	2023
Cash Flow Hedges:
Interest rate swap	Prepaid expenses and other current assets	$	9,145
Interest rate swap	Other non-current liabilities	$	(4,595)

The location and the fair value of the foreign currency contract in the consolidated balance sheet as of December 31, 2022 was as follows:


(in thousands)	Balance Sheet Location	2022
Derivative Contracts:
Foreign currency contract	Accrued liabilities	$	930

Schedule of Impact of Interest Rate Swap and Foreign currency contract on Other Comprehensive Income, AOCI, and Statement of Operations


(in thousands)	2023		2022		2021
Gain recognized in OCI	$	15,901	$	4,669	$	11,677
Location of gain (loss) recognized in income	Interest expense, net		Interest expense, net		Interest expense, net
(Gain) loss reclassified from AOCI into income	$	(11,550)	$	4,530	$	12,001

The following table discloses the impact of the foreign currency contract, excluding the impact of income taxes, on the Company’s statement of operations for the years ended December 31:


(in thousands)	2023		2022
Loss recognized in income	$	7,715	$	930
Location of loss recognized in income	Currency losses, net		Currency losses, net

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References + Details

Stock-Based Compensation - Schedule of Time-Based RSU Award Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Shares
Forfeited (in shares)			(8,532)
Weighted-Average Grant Date Fair Value
Forfeited (in USD per share)			$ 29.30
Time-based RSUs
Number of Shares
Beginning Balance (in shares)	789,779	997,451	1,325,862
Granted (in shares)	213,388	377,804	415,737
Forfeited (in shares)	(61,848)	(106,570)	(72,505)
Vested (in shares)	(322,483)	(478,906)	(671,643)
Ending Balance (in shares)	618,836	789,779	997,451
Weighted-Average Grant Date Fair Value
Beginning Balance (in USD per share)	$ 26.16	$ 18.54	$ 13.46
Granted (in USD per share)	50.74	35.40	27.25
Forfeited (in USD per share)	36.75	31.35	17.80
Vested (in USD per share)	21.38	16.42	13.99
Ending Balance (in USD per share)	$ 36.07	$ 26.16	$ 18.54

Business Combinations and Acquisitions (Tables)

12 Months Ended

Dec. 31, 2023

Business Combination and Asset Acquisition [Abstract]

Schedule of Acquisitions

The aggregate purchase price paid for these acquisitions and the opening balance sheet were as follows:


(in thousands)
Purchase Price:
Cash used in acquisitions, net of cash acquired of $3,245	$	411,593
Allocated as follows:
Trade receivables	8,452		(a)
Inventories	2,017
Deferred tax assets	931
Rental equipment	214,936		(b)
Property, plant, and equipment	3,376
Operating lease assets	5,028
Intangibles - customer relationships	26,408		(b)
Other assets	3,669
Accounts payable	(276)
Deferred revenue	(11,635)
Operating lease liabilities	(3,633)
Other liabilities	(2,182)
Total identifiable net assets	247,091
Goodwill	164,502
Total net assets acquired	$	411,593

Stock-Based Compensation (Tables)

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Schedule of Restricted Stock Awards

The following table summarizes the Company's RSA activity during the years ended December 31, 2023, 2022 and 2021:


	Number of Shares	Weighted-Average Grant Date Fair Value
Balance December 31, 2020	57,448	$	11.75
Granted	44,708	$	29.30
Forfeited	(8,532)	$	29.30
Vested	(57,448)	$	11.75
Balance December 31, 2021	36,176	$	29.30
Granted	35,244	$	37.17

Vested	(36,176)	$	29.30
Balance December 31, 2022	35,244	$	37.17
Granted	28,946	$	44.44

Vested	(35,244)	$	37.17
Balance December 31, 2023	28,946	$	44.44

Schedule of Restricted Stock Units

The following table summarizes the Company's Time-Based RSU activity during the years ended December 31, 2023, 2022 and 2021:


	Number of Shares	Weighted-Average Grant Date Fair Value
Balance December 31, 2020	1,325,862	$	13.46
Granted	415,737	$	27.25
Forfeited	(72,505)	$	17.80
Vested	(671,643)	$	13.99
Balance December 31, 2021	997,451	$	18.54
Granted	377,804	$	35.40
Forfeited	(106,570)	$	31.35
Vested	(478,906)	$	16.42
Balance December 31, 2022	789,779	$	26.16
Granted	213,388	$	50.74
Forfeited	(61,848)	$	36.75
Vested	(322,483)	$	21.38
Balance December 31, 2023	618,836	$	36.07

The following table summarizes the Company's Performance-Based RSU award activity during the years ended December 31, 2023 and 2022 and 2021:


	Number of Shares	Weighted-Average Grant Date Fair Value
Balance December 31, 2020	593,388	$	14.88
Granted	977,645	$	33.21
Forfeited	(23,753)	$	27.92
Vested	(10,886)	$	14.70
Balance December 31, 2021	1,536,394	$	26.34
Granted	745,079	$	42.34
Forfeited	(74,071)	$	41.66
Vested	(313,152)	$	16.45
Balance December 31, 2022	1,894,250	$	33.67
Granted	376,826	$	69.52
Forfeited	(37,451)	$	47.52
Vested	(293,934)	$	16.34
Balance December 31, 2023	1,939,691	$	42.95

Schedule of Stock Option Awards

The following table summarizes the Company's stock option activity during the years ended December 31, 2023, 2022 and 2021:


	WillScot Options	Weighted-Average Exercise Price per Share		Converted Mobile Mini Options	Weighted-Average Exercise Price per Share
Balance December 31, 2020	534,188	$	13.60	2,031,455	$	14.78
Forfeited	—	$	—	(6,240)	$	12.19
Exercised	—	$	—	(497,572)	$	15.21

Balance at December 31, 2021	534,188	$	13.60	1,527,643	$	14.66

Exercised	—	$	—	(663,367)	$	16.93
Balance at December 31, 2022	534,188	$	13.60	864,276	$	12.91

Exercised	—	$	—	(35,030)	$	14.21
Balance at December 31, 2023	534,188	$	13.60	829,246	$	12.86





Fully vested and exercisable options, December 31, 2023	534,188	$	13.60	829,246	$	12.86

Discontinued Operations - Schedule of Discontinued Operations Assets and Liabilities Held For Sale (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Assets
Cash and cash equivalents	$ 10,958	$ 7,390
Trade receivables, net of allowances for doubtful accounts of $300	451,130	409,766
Inventories	47,406	41,030
Prepaid expenses and other current assets	57,492	31,635
Rental equipment, net	3,381,315	3,077,287
Property, plant and equipment, net	340,887	304,659
Operating lease assets	245,647	219,405
Goodwill	1,176,635	1,011,429	$ 1,013,601
Intangible assets, net	419,709	419,125
Other non-current assets	4,626	6,683
Liabilities
Accounts payable	86,123	109,349
Accrued expenses	129,621	109,542
Accrued employee benefits	45,564	56,340
Deferred revenue and customer deposits	224,518	203,793
Deferred tax liabilities	554,268	401,453
Operating lease liabilities – non-current	187,837	169,618
Other non-current liabilities	34,024	18,537
Allowance for doubtful accounts	81,656	57,048
Discontinued Operations, Disposed of by Sale \| UK Storage Solutions
Assets
Cash and cash equivalents		10,384
Trade receivables, net of allowances for doubtful accounts of $300		15,991
Inventories		3,058
Prepaid expenses and other current assets		1,787
Rental equipment, net		165,853
Property, plant and equipment, net		20,645
Operating lease assets		15,134
Goodwill		58,144
Intangible assets, net		6,414
Other non-current assets		1,832
Total assets held for sale		299,242
Liabilities
Accounts payable		4,515
Accrued expenses		3,273
Accrued employee benefits		1,009
Deferred revenue and customer deposits		6,850
Deferred tax liabilities		29,737
Operating lease liabilities – non-current		15,192
Other non-current liabilities		6,278
Total liabilities held for sale		$ 66,854
Allowance for doubtful accounts	$ 300

Property, Plant and Equipment, net

12 Months Ended

Dec. 31, 2023

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment, net

Rental Equipment, net

Rental equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Modular space units	$	3,541,451	$	3,197,779
Portable storage units	1,009,059		849,193
Value added products	204,933		203,444
Total rental equipment	4,755,443		4,250,416
Less: accumulated depreciation	(1,374,128)		(1,173,129)
Rental equipment, net	$	3,381,315	$	3,077,287

Property, Plant and Equipment, net

Property, plant and equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Land, buildings, and leasehold improvements	$	178,117	$	174,322
Vehicles and equipment	233,793		167,337
Office furniture, fixtures and software	109,460		106,747
Total property, plant and equipment	521,370		448,406
Less: accumulated depreciation	(180,483)		(143,747)
Property, plant and equipment, net	$	340,887	$	304,659

Insider Trading Arrangements	3 Months Ended
Insider Trading Arrangements	Dec. 31, 2023
Trading Arrangements, by Individual
Rule 10b5-1 Arrangement Adopted	false
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false

Business Combinations and Acquisitions - Schedule of Acquisition of Aggregate Purchase Price (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Cash used in acquisitions, net of cash acquired of $3,245	$ 561,629	$ 220,620	$ 147,172
Allocated as follows:
Goodwill	1,176,635	$ 1,011,429	$ 1,013,601
National provider of cold storage solutions and a regional modular space manufacturing and leasing business
Business Acquisition [Line Items]
Cash Acquired from acquisition	3,245
Cash used in acquisitions, net of cash acquired of $3,245	411,593
Allocated as follows:
Trade receivables	8,452
Inventories	2,017
Deferred tax assets	931
Rental equipment	214,936
Property, plant, and equipment	3,376
Operating lease assets	5,028
Intangibles - customer relationships	26,408
Other assets	3,669
Accounts payable	(276)
Deferred revenue	(11,635)
Operating lease liabilities	(3,633)
Other liabilities	(2,182)
Total identifiable net assets	247,091
Goodwill	164,502
Total net assets acquired	411,593
Gross contractual amount	11,500
Rental equipment, adjustments	12,900
Intangible assets, adjustments	$ 26,400

Debt - Schedule of Asset Backed Lending Facility (Details) - Line of Credit - USD ($)		12 Months Ended
	Jun. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Jul. 01, 2020
Asset Based Liability Facility Due 2027
Line of Credit Facility [Line Items]
Credit spread	0.10%
Asset Based Liability Facility Due 2027 \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Line of Credit Facility [Line Items]
Applicable margin	1.50%
Debt instrument, variable rate, step down percentage	0.25%
Debt instrument, variable rate, step up percentage	0.25%
Asset Based Liability Facility Due 2027 \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Canadian Dollars
Line of Credit Facility [Line Items]
Applicable margin	0.50%
Revolving Credit Facility \| 2020 ABL Facility
Line of Credit Facility [Line Items]
Line of credit facility				$ 2,400,000,000
Revolving Credit Facility \| 2020 US ABL Facility
Line of Credit Facility [Line Items]
Line of credit facility				2,000,000,000
Revolving Credit Facility \| 2020 Multicurrency ABL Facility
Line of Credit Facility [Line Items]
Line of credit facility				$ 400,000,000
Revolving Credit Facility \| Asset Based Liability Facility Due 2027
Line of Credit Facility [Line Items]
Line of credit facility	$ 3,700,000,000	$ 3,200,000,000
Commitment fee	0.20%
Weighted-average interest rate for borrowings		6.24%
Available borrowing capacity		$ 1,200,000,000
Letters of credit amount outstanding		28,500,000
Outstanding principal borrowings on the credit facility		2,000,000,000	$ 31,800,000
Debt issuance costs			31,800,000
Revolving Credit Facility \| Asset Based Liability Facility Due 2027 - US Facility
Line of Credit Facility [Line Items]
Line of credit facility	$ 3,300,000,000
Available borrowing capacity		1,000,000,000
Revolving Credit Facility \| Asset Based Liability Facility Due 2027 - Multicurrency Facility
Line of Credit Facility [Line Items]
Line of credit facility	400,000,000
Lenders commitment aggregate amount	$ 750,000,000
Available borrowing capacity		189,400,000
Outstanding principal borrowings on the credit facility			0
Debt issuance costs			$ 2,500,000
Letter of Credit \| Asset Based Liability Facility Due 2027
Line of Credit Facility [Line Items]
Line of credit facility		$ 220,000,000
Commitment fee		1.625%
Available borrowing capacity		$ 191,500,000
Swingline Loans \| Asset Based Liability Facility Due 2027
Line of Credit Facility [Line Items]
Line of credit facility		220,000,000
Available borrowing capacity		$ 216,200,000

Leases

12 Months Ended

Dec. 31, 2023

Leases [Abstract]

Leases

As of December 31, 2023, the undiscounted future lease payments for operating and finance lease liabilities were as follows:


(in thousands)	Operating Leases		Finance Leases
2024	$	69,429	$	23,927
2025	60,490		23,550
2026	47,465		23,234
2027	36,903		19,982
2028	26,212		22,473
Thereafter	48,153		22,138
Total lease payments	288,652		135,304
Less: interest	(43,407)		(18,205)
Present value of lease liabilities	$	245,245	$	117,099

Finance lease liabilities are included within long-term debt and current portion of long-term debt on the consolidated balance sheets.

The Company’s lease activity during the years ended December 31, 2023, 2022, and 2021 was as follows:


	Years Ended December 31,
Financial Statement Line (in thousands)	2023		2022		2021
Finance Lease Expense
Amortization of finance lease assets	$	16,945	$	13,900	$	12,602
Interest on obligations under finance leases	3,777		1,899		1,406
Total finance lease expense	$	20,722	$	15,799	$	14,008

Operating Lease Expense
Fixed lease expense
Cost of leasing and services	$	1,396	$	2,797	$	3,979
Selling, general and administrative	67,374		60,017		56,005

Short-term lease expense
Cost of leasing and services	26,010		32,947		22,335
Selling, general and administrative	1,789		1,792		794

Variable lease expense
Cost of leasing and services	2,109		5,388		7,794
Selling, general and administrative	8,380		7,289		5,134

Total operating lease expense	$	107,058	$	110,230	$	96,041

Supplemental cash flow information related to leases for the years ended December 31, 2023, 2022, and 2021 were as follows:


	Years Ended December 31,
Supplemental Cash Flow Information (in thousands)	2023		2022		2021
Cash paid for the amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$	68,889	$	61,418	$	58,931
Operating cash outflows from finance leases	$	3,715	$	1,895	$	1,432
Financing cash outflows from finance leases	$	16,510	$	15,159	$	12,476

Right of use assets obtained in exchange for lease obligations	$	95,897	$	55,005	$	66,887
Assets obtained in exchange for finance leases	$	58,737	$	29,803	$	19,435

Weighted-average remaining operating lease terms and the weighted average discount rates as of December 31 were as follows:


Lease Terms and Discount Rates	2023		2022
Weighted-average remaining lease term - operating leases	5.4 years		5.8 years
Weighted-average discount rate - operating leases	5.9	%	5.4	%
Weighted-average remaining lease term - finance leases	5.0 years		5.1 years
Weighted-average discount rate - finance leases	4.8	%	3.4	%

Leases

As of December 31, 2023, the undiscounted future lease payments for operating and finance lease liabilities were as follows:


(in thousands)	Operating Leases		Finance Leases
2024	$	69,429	$	23,927
2025	60,490		23,550
2026	47,465		23,234
2027	36,903		19,982
2028	26,212		22,473
Thereafter	48,153		22,138
Total lease payments	288,652		135,304
Less: interest	(43,407)		(18,205)
Present value of lease liabilities	$	245,245	$	117,099

Finance lease liabilities are included within long-term debt and current portion of long-term debt on the consolidated balance sheets.

The Company’s lease activity during the years ended December 31, 2023, 2022, and 2021 was as follows:


	Years Ended December 31,
Financial Statement Line (in thousands)	2023		2022		2021
Finance Lease Expense
Amortization of finance lease assets	$	16,945	$	13,900	$	12,602
Interest on obligations under finance leases	3,777		1,899		1,406
Total finance lease expense	$	20,722	$	15,799	$	14,008

Operating Lease Expense
Fixed lease expense
Cost of leasing and services	$	1,396	$	2,797	$	3,979
Selling, general and administrative	67,374		60,017		56,005

Short-term lease expense
Cost of leasing and services	26,010		32,947		22,335
Selling, general and administrative	1,789		1,792		794

Variable lease expense
Cost of leasing and services	2,109		5,388		7,794
Selling, general and administrative	8,380		7,289		5,134

Total operating lease expense	$	107,058	$	110,230	$	96,041

Supplemental cash flow information related to leases for the years ended December 31, 2023, 2022, and 2021 were as follows:


	Years Ended December 31,
Supplemental Cash Flow Information (in thousands)	2023		2022		2021
Cash paid for the amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$	68,889	$	61,418	$	58,931
Operating cash outflows from finance leases	$	3,715	$	1,895	$	1,432
Financing cash outflows from finance leases	$	16,510	$	15,159	$	12,476

Right of use assets obtained in exchange for lease obligations	$	95,897	$	55,005	$	66,887
Assets obtained in exchange for finance leases	$	58,737	$	29,803	$	19,435

Weighted-average remaining operating lease terms and the weighted average discount rates as of December 31 were as follows:


Lease Terms and Discount Rates	2023		2022
Weighted-average remaining lease term - operating leases	5.4 years		5.8 years
Weighted-average discount rate - operating leases	5.9	%	5.4	%
Weighted-average remaining lease term - finance leases	5.0 years		5.1 years
Weighted-average discount rate - finance leases	4.8	%	3.4	%

Property, Plant and Equipment, net - Narrative (Details) - Property, Plant and Equipment - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 47.1	$ 38.6	$ 37.5
Gross cost of property, plant and equipment assets under finance leases	133.3	84.7
Accumulated depreciation of property, plant and equipment assets under finance leases	$ 40.8	$ 26.9

Stock-Based Compensation

12 Months Ended

Dec. 31, 2023

Share-Based Payment Arrangement [Abstract]

Stock-Based Compensation

Restricted Stock Awards

The following table summarizes the Company's RSA activity during the years ended December 31, 2023, 2022 and 2021:


	Number of Shares	Weighted-Average Grant Date Fair Value
Balance December 31, 2020	57,448	$	11.75
Granted	44,708	$	29.30
Forfeited	(8,532)	$	29.30
Vested	(57,448)	$	11.75
Balance December 31, 2021	36,176	$	29.30
Granted	35,244	$	37.17

Vested	(36,176)	$	29.30
Balance December 31, 2022	35,244	$	37.17
Granted	28,946	$	44.44

Vested	(35,244)	$	37.17
Balance December 31, 2023	28,946	$	44.44

Compensation expense for RSAs recognized in SG&A expense in the consolidated statements of operations was $1.3 million, $1.2 million, and $0.8 million for the years ended December 31, 2023, 2022, and 2021, respectively. At December 31, 2023, unrecognized compensation cost related to RSAs totaled $0.6 million and was expected to be recognized over the remaining weighted average vesting period of 0.4 years. The total fair value of RSA's vested in 2023, 2022, and 2021 was $1.6 million, $1.3 million, and $1.6 million, respectively.

Time-Based RSUs

The following table summarizes the Company's Time-Based RSU activity during the years ended December 31, 2023, 2022 and 2021:


	Number of Shares	Weighted-Average Grant Date Fair Value
Balance December 31, 2020	1,325,862	$	13.46
Granted	415,737	$	27.25
Forfeited	(72,505)	$	17.80
Vested	(671,643)	$	13.99
Balance December 31, 2021	997,451	$	18.54
Granted	377,804	$	35.40
Forfeited	(106,570)	$	31.35
Vested	(478,906)	$	16.42
Balance December 31, 2022	789,779	$	26.16
Granted	213,388	$	50.74
Forfeited	(61,848)	$	36.75
Vested	(322,483)	$	21.38
Balance December 31, 2023	618,836	$	36.07

Compensation expense for Time-Based RSUs recognized in SG&A expense in the consolidated statements of operations was $8.1 million, $8.2 million, and $9.0 million for the years ended December 31, 2023, 2022, and 2021, respectively. At December 31, 2023, unrecognized compensation cost related to Time-Based RSUs totaled $14.2 million and was expected to be recognized over the remaining weighted average vesting period of 2.0 years. The total fair value of Time-Based RSU's vested in 2023, 2022, and 2021 was $16.2 million, $18.0 million, and $18.5 million, respectively.

Included in restructuring costs for the year ended December 31, 2021 was expense of approximately $5.9 million recognized as a result of the modification of certain RSUs with the Transition, Separation and Release Agreement entered into on February 25, 2021, with the Company's former President and Chief Operating Officer.

Performance-Based RSUs

The following table summarizes the Company's Performance-Based RSU award activity during the years ended December 31, 2023 and 2022 and 2021:


	Number of Shares	Weighted-Average Grant Date Fair Value
Balance December 31, 2020	593,388	$	14.88
Granted	977,645	$	33.21
Forfeited	(23,753)	$	27.92
Vested	(10,886)	$	14.70
Balance December 31, 2021	1,536,394	$	26.34
Granted	745,079	$	42.34
Forfeited	(74,071)	$	41.66
Vested	(313,152)	$	16.45
Balance December 31, 2022	1,894,250	$	33.67
Granted	376,826	$	69.52
Forfeited	(37,451)	$	47.52
Vested	(293,934)	$	16.34
Balance December 31, 2023	1,939,691	$	42.95

Compensation expense for Performance-Based RSUs recognized in SG&A expense in the consolidated statements of operations was $24.9 million, $20.2 million and $8.3 million for the years ended December 31, 2023, 2022, and 2021, respectively. At December 31, 2023, unrecognized compensation cost related to Performance-Based RSUs totaled $35.2 million and was expected to be recognized over the remaining vesting period of 1.5 years. The total fair value of Performance-

Based RSU's vested in 2023, 2022, and 2021 was $15.0 million, $11.9 million and $0.3 million, respectively. Refer to Note 1 for the details of conditions required for the performance-based RSUs to vest.

Included in restructuring costs for the year ended December 31, 2021, was expense of approximately $1.3 million recognized as a result of the modification of certain Performance-Based RSUs with the Transition, Separation and Release Agreement entered into on February 25, 2021, with the Company's former President and Chief Operating Officer.

Stock Options

The following table summarizes the Company's stock option activity during the years ended December 31, 2023, 2022 and 2021:


	WillScot Options	Weighted-Average Exercise Price per Share		Converted Mobile Mini Options	Weighted-Average Exercise Price per Share
Balance December 31, 2020	534,188	$	13.60	2,031,455	$	14.78
Forfeited	—	$	—	(6,240)	$	12.19
Exercised	—	$	—	(497,572)	$	15.21

Balance at December 31, 2021	534,188	$	13.60	1,527,643	$	14.66

Exercised	—	$	—	(663,367)	$	16.93
Balance at December 31, 2022	534,188	$	13.60	864,276	$	12.91

Exercised	—	$	—	(35,030)	$	14.21
Balance at December 31, 2023	534,188	$	13.60	829,246	$	12.86





Fully vested and exercisable options, December 31, 2023	534,188	$	13.60	829,246	$	12.86

Under our stock option plans, the Company may issue shares on a net basis at the request of the option holder. This occurs by netting the option costs in shares from the shares exercised. No options were granted in the years ended December 31, 2023, 2022, and 2021.

At December 31, 2023, the intrinsic value of both stock options outstanding and stock options fully vested and currently exercisable was $42.7 million. At December 31, 2023, the weighted-average remaining contractual term of options outstanding was 4.2 years for WillScot options and 3.1 years for converted Mobile Mini options. The total pre-tax intrinsic value of stock options exercised during the years ended December 31, 2023, 2022, and 2021 was $1.1 million, $16.0 million and $6.2 million, respectively.

Compensation expense for stock option awards, recognized in SG&A expense in the consolidated statements of operations was $0.2 million and $0.7 million for the years ended December 31, 2022 and 2021, respectively. At December 31, 2023, all compensation cost related to stock option awards had been recognized.

Discontinued Operations - Schedule of Income From Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues:
Total revenues	$ 2,364,767	$ 2,142,623	$ 1,672,980
Costs of leasing and services:
Depreciation of rental equipment	265,733	256,719	218,790
Gross profit	1,333,870	1,135,482	844,703
Expenses:
Selling, general and administrative	596,090	567,407	480,407
Other depreciation and amortization	72,921	62,380	61,777
Currency losses, net	6,754	886	427
Other (income) expense, net	(15,354)	(6,673)	1,715
Operating income	673,459	511,482	300,377
Interest expense	205,040	146,278	116,358
Income tax expense from discontinued operations	45,468	35,725	13,018
Income from discontinued operations	134,613	63,199	45,249
Adjusted EBITDA from discontinued operations	1,061,465	883,874	649,604
Total Leasing And Product And Service Revenues/Costs
Revenues:
Total revenues	2,364,767	2,142,623	1,672,980
Leasing Revenue
Revenues:
Leasing	1,833,935	1,621,690	1,252,490
Costs of leasing and services:
Leasing	398,467	376,868	282,576
New units
Revenues:
Revenues	48,129	40,338	46,993
Total revenues	48,129	40,338	46,993
Costs of leasing and services:
Cost of sales	26,439	24,011	31,348
Rental units
Revenues:
Revenues	45,524	51,443	52,368
Total revenues	45,524	51,443	52,368
Costs of leasing and services:
Cost of sales	23,141	26,907	28,030
Discontinued Operations, Disposed of by Sale
Costs of leasing and services:
Depreciation of rental equipment		12,399	18,747
Gross profit		116,753	123,505
Expenses:
Selling, general and administrative		39,840	47,168
Other depreciation and amortization		12,009	16,253
Restructuring costs			2
Currency losses, net		138	121
Other (income) expense, net		(3)	65
Operating income		64,769	59,896
Interest expense		1,301	1,629
Income from discontinued operations before income tax and gain on sale		63,468	58,267
Income tax expense from discontinued operations		35,725	13,018
Income from discontinued operations		63,199	45,249
Adjusted EBITDA from discontinued operations		85,750	90,789
Discontinued Operations, Disposed of by Sale \| Tank and Pump
Costs of leasing and services:
Depreciation of rental equipment		8,145	14,319
Gross profit		49,152	52,262
Expenses:
Selling, general and administrative		18,045	22,194
Other depreciation and amortization		6,103	9,366
Restructuring costs			2
Currency losses, net		0	0
Other (income) expense, net		4	11
Operating income		25,000	20,689
Interest expense		512	779
Income from discontinued operations before income tax and gain on sale		24,488	19,910
Income tax expense from discontinued operations		843	5,277
Income from discontinued operations		59,101	14,633
Adjusted EBITDA from discontinued operations		37,016	41,750
Discontinued Operations, Disposed of by Sale \| UK Storage Solutions
Costs of leasing and services:
Depreciation of rental equipment		4,254	4,428
Gross profit	5,544	67,601	71,243
Expenses:
Selling, general and administrative	1,486	21,795	24,974
Other depreciation and amortization		5,906	6,887
Restructuring costs			0
Currency losses, net	0	138	121
Other (income) expense, net	(1)	(7)	54
Operating income	4,059	39,769	39,207
Interest expense	56	789	850
Income from discontinued operations before income tax and gain on sale	4,003	38,980	38,357
Gain on sale of discontinued operations	175,708
Income tax expense from discontinued operations	45,468	34,882	7,741
Income from discontinued operations	134,243	4,098	30,616
Adjusted EBITDA from discontinued operations	4,124	48,734	49,039
Discontinued Operations, Disposed of by Sale \| Total Leasing And Product And Service Revenues/Costs
Revenues:
Total revenues		201,565	221,917
Discontinued Operations, Disposed of by Sale \| Total Leasing And Product And Service Revenues/Costs \| Tank and Pump
Revenues:
Total revenues		96,356	110,891
Discontinued Operations, Disposed of by Sale \| Total Leasing And Product And Service Revenues/Costs \| UK Storage Solutions
Revenues:
Total revenues	8,694	105,209	111,026
Discontinued Operations, Disposed of by Sale \| Leasing Revenue
Revenues:
Leasing		145,344	159,633
Costs of leasing and services:
Leasing		30,565	34,485
Discontinued Operations, Disposed of by Sale \| Leasing Revenue \| Tank and Pump
Revenues:
Leasing		65,572	77,527
Costs of leasing and services:
Leasing		13,828	17,045
Discontinued Operations, Disposed of by Sale \| Leasing Revenue \| UK Storage Solutions
Revenues:
Leasing	6,389	79,772	82,106
Costs of leasing and services:
Leasing	1,407	16,737	17,440
Discontinued Operations, Disposed of by Sale \| Delivery and installation
Revenues:
Revenues		50,541	53,553
Costs of leasing and services:
Cost of sales		38,152	39,328
Discontinued Operations, Disposed of by Sale \| Delivery and installation \| Tank and Pump
Revenues:
Revenues		27,665	29,530
Costs of leasing and services:
Cost of sales		23,285	25,057
Discontinued Operations, Disposed of by Sale \| Delivery and installation \| UK Storage Solutions
Revenues:
Revenues	1,802	22,876	24,023
Costs of leasing and services:
Cost of sales	1,213	14,867	14,271
Discontinued Operations, Disposed of by Sale \| New units
Revenues:
Revenues		3,308	5,889
Costs of leasing and services:
Cost of sales		2,374	4,029
Discontinued Operations, Disposed of by Sale \| New units \| Tank and Pump
Revenues:
Revenues		2,202	2,355
Costs of leasing and services:
Cost of sales		1,636	1,672
Discontinued Operations, Disposed of by Sale \| New units \| UK Storage Solutions
Revenues:
Revenues	54	1,106	3,534
Costs of leasing and services:
Cost of sales	38	738	2,357
Discontinued Operations, Disposed of by Sale \| Rental units
Revenues:
Revenues		2,372	2,842
Costs of leasing and services:
Cost of sales		1,322	1,823
Discontinued Operations, Disposed of by Sale \| Rental units \| Tank and Pump
Revenues:
Revenues		917	1,479
Costs of leasing and services:
Cost of sales		310	536
Discontinued Operations, Disposed of by Sale \| Rental units \| UK Storage Solutions
Revenues:
Revenues	449	1,455	1,363
Costs of leasing and services:
Cost of sales	$ 492	$ 1,012	$ 1,287

Stock-Based Compensation - Schedule of Performance-Based RSU Award Activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Number of Shares
Forfeited (in shares)			(8,532)
Weighted-Average Grant Date Fair Value
Forfeited (in USD per share)			$ 29.30
Performance-Based RSUs
Number of Shares
Beginning Balance (in shares)	1,894,250	1,536,394	593,388
Granted (in shares)	376,826	745,079	977,645
Forfeited (in shares)	(37,451)	(74,071)	(23,753)
Vested (in shares)	(293,934)	(313,152)	(10,886)
Ending Balance (in shares)	1,939,691	1,894,250	1,536,394
Weighted-Average Grant Date Fair Value
Beginning Balance (in USD per share)	$ 33.67	$ 26.34	$ 14.88
Granted (in USD per share)	69.52	42.34	33.21
Forfeited (in USD per share)	47.52	41.66	27.92
Vested (in USD per share)	16.34	16.45	14.70
Ending Balance (in USD per share)	$ 42.95	$ 33.67	$ 26.34

Leases (Tables)

12 Months Ended

Dec. 31, 2023

Leases [Abstract]

Schedule of Operating Lease Maturities

As of December 31, 2023, the undiscounted future lease payments for operating and finance lease liabilities were as follows:


(in thousands)	Operating Leases		Finance Leases
2024	$	69,429	$	23,927
2025	60,490		23,550
2026	47,465		23,234
2027	36,903		19,982
2028	26,212		22,473
Thereafter	48,153		22,138
Total lease payments	288,652		135,304
Less: interest	(43,407)		(18,205)
Present value of lease liabilities	$	245,245	$	117,099

Schedule of Finance Lease Maturities

As of December 31, 2023, the undiscounted future lease payments for operating and finance lease liabilities were as follows:


(in thousands)	Operating Leases		Finance Leases
2024	$	69,429	$	23,927
2025	60,490		23,550
2026	47,465		23,234
2027	36,903		19,982
2028	26,212		22,473
Thereafter	48,153		22,138
Total lease payments	288,652		135,304
Less: interest	(43,407)		(18,205)
Present value of lease liabilities	$	245,245	$	117,099

Schedule of Lease Activity

The Company’s lease activity during the years ended December 31, 2023, 2022, and 2021 was as follows:


	Years Ended December 31,
Financial Statement Line (in thousands)	2023		2022		2021
Finance Lease Expense
Amortization of finance lease assets	$	16,945	$	13,900	$	12,602
Interest on obligations under finance leases	3,777		1,899		1,406
Total finance lease expense	$	20,722	$	15,799	$	14,008

Operating Lease Expense
Fixed lease expense
Cost of leasing and services	$	1,396	$	2,797	$	3,979
Selling, general and administrative	67,374		60,017		56,005

Short-term lease expense
Cost of leasing and services	26,010		32,947		22,335
Selling, general and administrative	1,789		1,792		794

Variable lease expense
Cost of leasing and services	2,109		5,388		7,794
Selling, general and administrative	8,380		7,289		5,134

Total operating lease expense	$	107,058	$	110,230	$	96,041

Supplemental cash flow information related to leases for the years ended December 31, 2023, 2022, and 2021 were as follows:


	Years Ended December 31,
Supplemental Cash Flow Information (in thousands)	2023		2022		2021
Cash paid for the amounts included in the measurement of lease liabilities:
Operating cash outflows from operating leases	$	68,889	$	61,418	$	58,931
Operating cash outflows from finance leases	$	3,715	$	1,895	$	1,432
Financing cash outflows from finance leases	$	16,510	$	15,159	$	12,476

Right of use assets obtained in exchange for lease obligations	$	95,897	$	55,005	$	66,887
Assets obtained in exchange for finance leases	$	58,737	$	29,803	$	19,435

Schedule of Weighted-Average Remaining Operating Lease Term and Weighted Average Discount Rate

Weighted-average remaining operating lease terms and the weighted average discount rates as of December 31 were as follows:


Lease Terms and Discount Rates	2023		2022
Weighted-average remaining lease term - operating leases	5.4 years		5.8 years
Weighted-average discount rate - operating leases	5.9	%	5.4	%
Weighted-average remaining lease term - finance leases	5.0 years		5.1 years
Weighted-average discount rate - finance leases	4.8	%	3.4	%

Derivatives - Narrative (Details)	12 Months Ended
Derivatives - Narrative (Details)	Dec. 31, 2023 USD ($) GBP (£)	Jan. 31, 2023 USD ($) derivativeAgreement Rate	Dec. 31, 2018 USD ($)
Derivative [Line Items]
Cash flow hedge gain to be reclassified within next 12 months	$ 9,100,000
Interest rate swap
Derivative [Line Items]
Notational amount		$ 750,000,000	$ 400,000,000
Pay rate		3.44%	3.06%
Number of Interest swap agreements \| derivativeAgreement		2
Receive rate	5.36%
Foreign currency contract
Derivative [Line Items]
Notational amount	$ 330,000,000
Exchange rate \| Rate		120.50%
Foreign currency contract \| Maximum
Derivative [Line Items]
Price range \| £	1.2055
Foreign currency contract \| Minimum
Derivative [Line Items]
Price range \| £	1.2044

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense

The components of income tax expense from continuing operations for the years ended December 31, are comprised of the following:


(in thousands)	2023		2022		2021
Current
Federal	$	—	$	—	$	—
State	12,250		11,327		4,645
Foreign	7,382		6,204		1,795
Deferred
Federal	80,698		63,585		23,707
State	27,276		8,917		(2,671)
Foreign	(1,031)		(1,170)		9,052
Total income tax expense from continuing operations	$	126,575	$	88,863	$	36,528

Schedule of Effective Income Tax Rate Reconciliation

Income tax expense from continuing operations differed from the amount computed by applying the US statutory income tax rate of 21% to the income from continuing operations before income taxes for the following reasons for the years ended December 31,:


(in thousands)	2023			2022			2021
Income from continuing operations before income tax
US	$	444,557		$	341,412		$	137,922
Foreign	23,862			23,792			13,501
Total income from continuing operations before income tax	$	468,419		$	365,204		$	151,423

US Federal statutory income tax expense	$	98,368		$	76,693		$	31,798
Effect of tax rates in foreign jurisdictions	1,434			1,085			743
State income tax expense, net of federal benefit	25,016			16,917			1,130
Valuation allowances	(815)			(6,907)			(2,595)
Non-deductible (non-taxable) items	775			1,147			(410)
Non-deductible executive compensation	2,014			1,258			2,309

Non-deductible remeasurement of common stock warrant liabilities	—			—			5,585
Uncertain tax positions	(523)			(804)			(11,748)
Tax law changes (excluding valuation allowance) (a)	(50)			(94)			8,411
Other	356			(432)			1,305
Income tax expense from continuing operations	$	126,575		$	88,863		$	36,528
Effective income tax rate	27.02		%	24.33		%	24.12		%

(a) Tax law changes primarily represent changes in tax law in foreign jurisdictions.

Schedule of Deferred Income Taxes

Significant components of the Company’s deferred tax assets and liabilities as of December 31, are as follows:


(in thousands)	2023		2022
Deferred tax assets
Deferred interest expense	$	116,982	$	133,223
Employee benefit plans	9,079		6,233
Accrued liabilities	5,996		8,043
Allowance for credit losses	21,964		15,143
Deferred revenue	57,494		50,531
Operating lease liability	61,849		59,740
Other	5,006		6,127
Tax loss carryforwards	99,676		233,133
Deferred tax assets, gross	378,046		512,173
Valuation allowance	(1,430)		(2,245)
Net deferred income tax asset	$	376,616	$	509,928

Deferred tax liabilities
Rental equipment and other property, plant and equipment	$	(808,873)	$	(770,964)
Intangible assets	(60,358)		(84,390)
Right of use asset	(61,653)		(59,258)
Deferred gain	—		(26,691)
Deferred tax liability	(930,884)		(941,303)
Net deferred income tax liability	$	(554,268)	$	(431,375)

Schedule of Tax Loss Carryforwards

The Company’s tax loss carryforwards are as follows at December 31, 2023:


(in thousands)	Loss Carryforward		Deferred Tax		Expiration
Jurisdiction:
US - Federal	$	465,179	$	88,887	2037, Indefinite
US - State	240,335		10,789		2025 – 2042, Indefinite

Total	$	705,514	$	99,676

Schedule of Unrecognized Tax Benefits

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:


(in thousands)	2023		2022		2021
Unrecognized tax benefits – January 1,	$	43,627	$	44,314	$	54,494

Increases based on tax positions related to prior period	—		—		9

Decrease from expiration of statute of limitations	(493)		(687)		(10,189)
Unrecognized tax benefits – December 31,	$	43,134	$	43,627	$	44,314

Inventories (Tables)

12 Months Ended

Dec. 31, 2023

Inventory Disclosure [Abstract]

Schedule of Inventory

Inventories at December 31, consisted of the following:


(in thousands)	2023		2022
Raw materials	$	43,071	$	38,611
Finished units	4,335		2,419
Inventories	$	47,406	$	41,030

Segment Reporting - Schedule of Assets Related to Reportable Segments (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Segment Reporting Information [Line Items]
Goodwill	$ 1,176,635	$ 1,011,429	$ 1,013,601
Intangible assets, net	419,709	419,125
Rental equipment, net	3,381,315	3,077,287
Modular
Segment Reporting Information [Line Items]
Goodwill	580,692	518,877	521,049
Intangible assets, net	126,620	125,000
Rental equipment, net	2,141,848	2,004,055
Storage
Segment Reporting Information [Line Items]
Goodwill	595,943	492,552	$ 492,552
Intangible assets, net	293,089	294,125
Rental equipment, net	$ 1,239,467	$ 1,073,232

- Definition

+ References + Details

Goodwill and Intangible Assets - Narrative (Details) - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Indefinite-lived Intangible Assets [Line Items]
Goodwill impairment	$ 0	$ 0	$ 0
Amortization expense	25,800,000	$ 23,800,000	$ 24,300,000
Modular
Indefinite-lived Intangible Assets [Line Items]
Accumulated impairment loss	$ 792,800,000

Debt - 2031 Secured Notes (Details) - 2031 Secured Notes - Senior Notes	Sep. 25, 2023
100% of Principal
Debt Instrument [Line Items]
Redemption Price	100.00%
40% of Principal
Debt Instrument [Line Items]
Redemption Price	107.375%
Redemption percentage of aggregate principal amount	40.00%
10% of Principal
Debt Instrument [Line Items]
Redemption Price	103.00%
Redemption percentage of aggregate principal amount	10.00%

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

+ Details

Subsequent Events (Details)		1 Months Ended
Subsequent Events (Details)	Feb. 12, 2024 USD ($)	Jan. 31, 2024 USD ($) derivativeAgreement	Feb. 11, 2024 USD ($)	Jan. 28, 2024 $ / shares shares	Jan. 31, 2023 USD ($)	Dec. 31, 2018 USD ($)
Forecast \| McGrath RentCorp
Subsequent Event [Line Items]
Amount to be paid to shareholders (USD per share) \| $ / shares				$ 123
Fractional shares to be converted to shares (in shares) \| shares				2.8211
Forecast \| McGrath RentCorp \| Line of Credit \| Eight Year Senior Secured Bridge Credit Facility \| Revolving Credit Facility
Subsequent Event [Line Items]
Debt, face amount	$ 875,000,000
Agreement term	8 years
Forecast \| McGrath RentCorp \| Line of Credit \| Five Year Senior Secured Bridge Credit Facility \| Revolving Credit Facility
Subsequent Event [Line Items]
Debt, face amount	$ 875,000,000
Agreement term	5 years
Forecast \| McGrath RentCorp \| Line of Credit \| ABL Facility \| Revolving Credit Facility
Subsequent Event [Line Items]
Line of credit facility	$ 4,450,000,000		$ 3,700,000,000
Additional borrowing capacity	$ 750,000,000
Forecast \| McGrath RentCorp \| McGrath Shareholders \| McGrath RentCorp
Subsequent Event [Line Items]
Percentage ownership				12.60%
Interest rate swap
Subsequent Event [Line Items]
Notational amount					$ 750,000,000	$ 400,000,000
Pay rate					3.44%	3.06%
Interest rate swap \| Subsequent Event
Subsequent Event [Line Items]
Number of derivative instruments \| derivativeAgreement		2
Notational amount		$ 500,000,000
Interest rate swap \| Subsequent Event \| Average
Subsequent Event [Line Items]
Pay rate		3.70%

Leases - Schedule of Lease Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Operating Leases
2024	$ 69,429
2025	60,490
2026	47,465
2027	36,903
2028	26,212
Thereafter	48,153
Total lease payments	288,652
Less: interest	(43,407)
Present value of lease liabilities	245,245
Finance Leases
2024	23,927
2025	23,550
2026	23,234
2027	19,982
2028	22,473
Thereafter	22,138
Total lease payments	135,304
Less: interest	(18,205)
Present value of lease liabilities	$ 117,099	$ 74,370
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current portion of long-term debt
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Total long-term debt

Discontinued Operations

12 Months Ended

Dec. 31, 2023

Business Combination and Asset Acquisition [Abstract]

Discontinued Operations

Tank and Pump Divestiture

On September 30, 2022, the Company sold its former Tank and Pump segment for $321.9 million. Exiting the former Tank and Pump segment represented the Company’s strategic shift to concentrate its operations on its core modular and storage businesses. Results for the former Tank and Pump segment are reported in income from discontinued operations within the consolidated statements of operations for all periods presented.

UK Storage Solutions Divestiture

On January 31, 2023, the Company sold its former UK Storage Solutions segment for $418.1 million. Exiting the UK Storage Solutions segment represented the Company’s strategic shift to concentrate its operations on its core modular and storage businesses in North America. Results for the former UK Storage Solutions segment are reported in income from discontinued operations within the consolidated statements of operations for all periods presented. The carrying value of the UK Storage Solutions segment's assets and liabilities are presented within assets and liabilities held for sale on the consolidated balance sheet as of December 31, 2022.


	Year Ended December 31, 2023
(in thousands)	UK Storage Solutions
Revenues:
Leasing and services revenue:
Leasing	$	6,389
Delivery and installation	1,802
Sales revenue:
New units	54
Rental units	449
Total revenues	8,694
Costs:
Costs of leasing and services:
Leasing	1,407
Delivery and installation	1,213
Costs of sales:
New units	38
Rental units	492

Gross profit	5,544
Expenses:
Selling, general and administrative	1,486



Other income, net	(1)
Operating income	4,059
Interest expense	56
Income from discontinued operations before income tax	4,003
Gain on sale of discontinued operations	175,708
Income tax expense from discontinued operations	45,468
Income from discontinued operations	$	134,243
Other selected data:
Adjusted EBITDA from discontinued operations	$	4,124

In January 2023, a $0.4 million adjustment was made to the gain on sale of the former Tank and Pump segment due to the final contractual working capital adjustment. Including this adjustment, the total gain on sale of discontinued operations was $176.1 million for the year ended December 31, 2023.


	Year Ended December 31, 2022
(in thousands)	Tank and Pump		UK Storage Solutions		Total
Revenues:
Leasing and services revenue:
Leasing	$	65,572	$	79,772	$	145,344
Delivery and installation	27,665		22,876		50,541
Sales revenue:
New units	2,202		1,106		3,308
Rental units	917		1,455		2,372
Total revenues	96,356		105,209		201,565
Costs:
Costs of leasing and services:
Leasing	13,828		16,737		30,565
Delivery and installation	23,285		14,867		38,152
Costs of sales:
New units	1,636		738		2,374
Rental units	310		1,012		1,322
Depreciation of rental equipment	8,145		4,254		12,399
Gross profit	49,152		67,601		116,753
Expenses:
Selling, general and administrative	18,045		21,795		39,840
Other depreciation and amortization	6,103		5,906		12,009

Currency losses, net	—		138		138
Other expense, net	4		(7)		(3)
Operating income	25,000		39,769		64,769
Interest expense	512		789		1,301
Income from discontinued operations before income tax	24,488		38,980		63,468
Income tax expense from discontinued operations	843		34,882		35,725
Gain on sale of discontinued operations	35,456		—		$	35,456
Income from discontinued operations	$	59,101	$	4,098	$	63,199
Other selected data:
Adjusted EBITDA from discontinued operations	$	37,016	$	48,734	$	85,750


	Year Ended December 31, 2021
(in thousands)	Tank and Pump		UK Storage Solutions		Total
Revenues:
Leasing and services revenue:
Leasing	$	77,527	$	82,106	$	159,633
Delivery and installation	29,530		24,023		53,553
Sales revenue:
New units	2,355		3,534		5,889
Rental units	1,479		1,363		2,842
Total revenues	110,891		111,026		221,917
Costs:
Costs of leasing and services:
Leasing	17,045		17,440		34,485
Delivery and installation	25,057		14,271		39,328
Costs of sales:
New units	1,672		2,357		4,029
Rental units	536		1,287		1,823
Depreciation of rental equipment	14,319		4,428		18,747
Gross profit	52,262		71,243		123,505
Expenses:
Selling, general and administrative	22,194		24,974		47,168
Other depreciation and amortization	9,366		6,887		16,253
Restructuring costs	2		—		2
Currency gains, net	—		121		121
Other expense, net	11		54		65
Operating income	20,689		39,207		59,896
Interest expense	779		850		1,629
Income from discontinued operations before income tax	19,910		38,357		58,267
Income tax expense from discontinued operations	5,277		7,741		13,018
Income from discontinued operations	$	14,633	$	30,616	$	45,249
Other selected data:
Adjusted EBITDA from discontinued operations	$	41,750	$	49,039	$	90,789


	December 31, 2022
(in thousands)	UK Storage Solutions
Assets
Cash and cash equivalents	$	10,384
Trade receivables, net of allowances for doubtful accounts of $300	15,991
Inventories	3,058
Prepaid expenses and other current assets	1,787
Rental equipment, net	165,853
Property, plant and equipment, net	20,645
Operating lease assets	15,134
Goodwill	58,144
Intangible assets, net	6,414
Other non-current assets	1,832
Total assets held for sale	$	299,242
Liabilities
Accounts payable	$	4,515
Accrued expenses	3,273
Accrued employee benefits	1,009
Deferred revenue and customer deposits	6,850
Deferred tax liabilities	29,737
Operating lease liabilities	15,192
Other non-current liabilities	6,278
Total liabilities held for sale	$	66,854

For the years ended December 31, 2022 and 2021, significant operating and investing items related to the former Tank and Pump segment were as follows:


	Years Ended December 31,
(in thousands)	2022		2021
Operating activities of discontinued operations:
Depreciation and amortization	$	14,248	$	23,685

Investing activities of discontinued operations:
Proceeds from sale of rental equipment	$	918	$	1,480
Purchases of rental equipment and refurbishments	$	(21,831)	$	(17,747)
Proceeds from sale of property, plant and equipment	$	—	$	388
Purchases of property, plant and equipment	$	(525)	$	(1,743)


	Years Ended December 31,
(in thousands)	2022		2021
Income from discontinued operations	$	59,101	$	14,633
Gain on sale of discontinued operations	35,456		—
Income tax expense from discontinued operations	843		5,277
Income from discontinued operations before income tax and gain on sale	24,488		19,910
Interest expense	512		779
Depreciation and amortization	14,248		23,685
Restructuring costs, lease impairment expense and other related charges	—		2
Integration costs	—		14
Stock compensation expense	18		222
Other	(2,250)		(2,862)
Adjusted EBITDA from discontinued operations	$	37,016	$	41,750

For the years ended December 31, 2023, 2022 and 2021, significant operating and investing items related to the UK Storage Solutions segment were as follows:


	Years Ended December 31,
(in thousands)	2023		2022		2021
Operating activities of discontinued operations:
Depreciation and amortization	$	—	$	10,160	$	11,315

Investing activities of discontinued operations:
Proceeds from sale of rental equipment	$	514	$	1,455	$	1,363
Purchases of rental equipment and refurbishments	$	(371)	$	(23,931)	$	(27,830)
Proceeds from sale of property, plant and equipment	$	8	$	504	$	387
Purchases of property, plant and equipment	$	(64)	$	(3,752)	$	(1,680)


	Years Ended December 31,
(in thousands)	2023		2022		2021
Income from discontinued operations	$	134,243	$	4,098	$	30,616
Gain on sale of discontinued operations	175,708		—		—
Income tax expense from discontinued operations	45,468		34,882		7,741
Income from discontinued operations before income tax and gain on sale	4,003		38,980		38,357
Interest expense	56		789		850
Depreciation and amortization	—		10,160		11,315
Currency losses, net	—		138		121



Stock compensation expense	(196)		197		39
Other	261		(1,530)		(1,643)
Adjusted EBITDA from discontinued operations	$	4,124	$	48,734	$	49,039

Fair Value Measures - Schedule of Carrying Amounts and Fair Values of Financial Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	$ 3,440,203	$ 3,001,996
Fair Value \| Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	0	0
Fair Value \| Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	3,485,392	2,996,935
Fair Value \| Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	0	0
ABL Facility \| Carrying Amount \| Line of Credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	1,929,259	1,988,176
ABL Facility \| Fair Value \| Level 1 \| Line of Credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	0	0
ABL Facility \| Fair Value \| Level 2 \| Line of Credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	1,956,011	2,020,000
ABL Facility \| Fair Value \| Level 3 \| Line of Credit
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	0	0
2025 Secured Notes \| Carrying Amount \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	522,735	520,350
2025 Secured Notes \| Fair Value \| Level 1 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	0	0
2025 Secured Notes \| Fair Value \| Level 2 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	527,021	526,800
2025 Secured Notes \| Fair Value \| Level 3 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	0	0
2028 Secured Notes \| Carrying Amount \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	494,500	493,470
2028 Secured Notes \| Fair Value \| Level 1 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	0	0
2028 Secured Notes \| Fair Value \| Level 2 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	474,285	450,135
2028 Secured Notes \| Fair Value \| Level 3 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	0	0
2031 Secured Notes \| Carrying Amount \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	493,709	0
2031 Secured Notes \| Fair Value \| Level 1 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	0	0
2031 Secured Notes \| Fair Value \| Level 2 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	528,075	0
2031 Secured Notes \| Fair Value \| Level 3 \| Notes
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Debt	$ 0	$ 0

Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Current
Federal	$ 0	$ 0	$ 0
State	12,250	11,327	4,645
Foreign	7,382	6,204	1,795
Deferred
Federal	80,698	63,585	23,707
State	27,276	8,917	(2,671)
Foreign	(1,031)	(1,170)	9,052
Total income tax expense from continuing operations	$ 126,575	$ 88,863	$ 36,528

- Definition

Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

+ References + Details

Equity

12 Months Ended

Dec. 31, 2023

Equity [Abstract]

Equity

Preferred Stock

Common Stock

Stock Repurchase Program

Accumulated Other Comprehensive Loss

The changes in accumulated other comprehensive loss ("AOCI"), net of tax, for the years ended December 31, 2023, 2022 and 2021, were as follows:


(in thousands)	Foreign Currency Translation		Unrealized (gains) losses on hedging activities		Total
Balance at December 31, 2020	$	(24,694)	$	(12,513)	$	(37,207)
Other comprehensive loss before reclassifications	(880)		(2,985)		(3,865)
Reclassifications from AOCI to income (a)	—		12,001		12,001


Balance at December 31, 2021	(25,574)		(3,497)		(29,071)
Other comprehensive loss before reclassifications	(44,548)		(1,033)		(45,581)
Reclassifications from AOCI to income (a)	—		4,530		4,530
Balance at December 31, 2022	(70,122)		—		(70,122)
Other comprehensive income before reclassifications	14,091		14,813		28,904
Reclassifications from AOCI to income (a)	—		(11,550)		(11,550)
Balance at December 31, 2023	$	(56,031)	$	3,263	$	(52,768)

Warrants

2015 Private Warrants

2018 Warrants

- Definition

The entire disclosure for equity.

+ References

+ Details

Stock-Based Compensation - Narrative (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted-average grant date fair value (in USD per share)	$ 0	$ 0	$ 0
Options outstanding, intrinsic value	$ 42.7
Options exercisable, intrinsic value	42.7
Options exercised, intrinsic value	1.1	$ 16.0	$ 6.2
RSAs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	1.3	1.2	0.8
Unrecognized compensation expense for non-option awards	$ 0.6
Weighted average remaining vesting period	4 months 24 days
Share-based compensation vested in period, fair value	$ 1.6	1.3	1.6
Time-Based Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	8.1	8.2	9.0
Unrecognized compensation expense for non-option awards	$ 14.2
Weighted average remaining vesting period	2 years
Share-based compensation vested in period, fair value	$ 16.2	18.0	18.5
Modification of awards			5.9
Performance-Based RSUs
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense	24.9	20.2	8.3
Unrecognized compensation expense for non-option awards	$ 35.2
Weighted average remaining vesting period	1 year 6 months
Share-based compensation vested in period, fair value	$ 15.0	11.9	0.3
Modification of awards			1.3
WillScot Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock compensation expense		$ 0.2	$ 0.7
Weighted average remaining contractual term	4 years 2 months 12 days
Converted Mobile Mini Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average remaining contractual term	3 years 1 month 6 days

Income Taxes

12 Months Ended

Dec. 31, 2023

Income Tax Disclosure [Abstract]

Income Taxes

The components of income tax expense from continuing operations for the years ended December 31, are comprised of the following:


(in thousands)	2023		2022		2021
Current
Federal	$	—	$	—	$	—
State	12,250		11,327		4,645
Foreign	7,382		6,204		1,795
Deferred
Federal	80,698		63,585		23,707
State	27,276		8,917		(2,671)
Foreign	(1,031)		(1,170)		9,052
Total income tax expense from continuing operations	$	126,575	$	88,863	$	36,528


(in thousands)	2023			2022			2021
Income from continuing operations before income tax
US	$	444,557		$	341,412		$	137,922
Foreign	23,862			23,792			13,501
Total income from continuing operations before income tax	$	468,419		$	365,204		$	151,423

US Federal statutory income tax expense	$	98,368		$	76,693		$	31,798
Effect of tax rates in foreign jurisdictions	1,434			1,085			743
State income tax expense, net of federal benefit	25,016			16,917			1,130
Valuation allowances	(815)			(6,907)			(2,595)
Non-deductible (non-taxable) items	775			1,147			(410)
Non-deductible executive compensation	2,014			1,258			2,309

Non-deductible remeasurement of common stock warrant liabilities	—			—			5,585
Uncertain tax positions	(523)			(804)			(11,748)
Tax law changes (excluding valuation allowance) (a)	(50)			(94)			8,411
Other	356			(432)			1,305
Income tax expense from continuing operations	$	126,575		$	88,863		$	36,528
Effective income tax rate	27.02		%	24.33		%	24.12		%

(a) Tax law changes primarily represent changes in tax law in foreign jurisdictions.

Deferred Income Taxes

Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities and their tax bases, as well as from net operating loss and carryforwards. Significant components of the Company’s deferred tax assets and liabilities as of December 31, are as follows:


(in thousands)	2023		2022
Deferred tax assets
Deferred interest expense	$	116,982	$	133,223
Employee benefit plans	9,079		6,233
Accrued liabilities	5,996		8,043
Allowance for credit losses	21,964		15,143
Deferred revenue	57,494		50,531
Operating lease liability	61,849		59,740
Other	5,006		6,127
Tax loss carryforwards	99,676		233,133
Deferred tax assets, gross	378,046		512,173
Valuation allowance	(1,430)		(2,245)
Net deferred income tax asset	$	376,616	$	509,928

Deferred tax liabilities
Rental equipment and other property, plant and equipment	$	(808,873)	$	(770,964)
Intangible assets	(60,358)		(84,390)
Right of use asset	(61,653)		(59,258)
Deferred gain	—		(26,691)
Deferred tax liability	(930,884)		(941,303)
Net deferred income tax liability	$	(554,268)	$	(431,375)

As of December 31, 2022, the net deferred income tax liability presented in the table above included net deferred tax liability of $29.7 million ($33.7 million of deferred tax liability, net of $4.0 million of deferred tax asset) related to the UK Storage Solutions segment and recorded in liabilities held for sale - non-current on the consolidated balance sheet.

The Company's valuation allowance decreased by $0.8 million from 2022, related to a reduction to the valuation allowance on state NOL where the Company determined that it is more likely than not realizable due to sufficient current and future taxable income.

Tax loss carryforwards as of December 31, 2023 are outlined in the table below and include US Federal, US State and foreign (Canada and Mexico). The availability of these tax losses to offset future income varies by jurisdiction. Furthermore, the ability to utilize the tax losses may be subject to additional limitations upon the occurrence of certain events, such as a change in the ownership of the Company. Some of the Company’s tax attributes are subject to annual limitations due to historical changes in ownership from acquisitions, mergers or other related ownership shift events; however, the Company anticipates that our remaining available net operating losses will be consumed prior to their expiration.

The Company’s tax loss carryforwards are as follows at December 31, 2023:


(in thousands)	Loss Carryforward		Deferred Tax		Expiration
Jurisdiction:
US - Federal	$	465,179	$	88,887	2037, Indefinite
US - State	240,335		10,789		2025 – 2042, Indefinite

Total	$	705,514	$	99,676

As of December 31, 2023, the total amount of the basis difference in investments outside the US, which are indefinitely reinvested and for which deferred taxes have not been provided, is approximately $174.2 million. The tax, if any, associated with the recovery of the basis difference is dependent on the manner in which it is recovered and is not readily determinable.

Unrecognized Tax Positions

The Company is subject to taxation in US, Canada, Mexico, and state jurisdictions. The Company’s tax returns are subject to examination by the applicable tax authorities prior to the expiration of statute of limitations for assessing additional taxes, which generally ranges from two to five years after the end of the applicable tax year. As of December 31, 2023, generally, tax years for 2016 through 2022 remain subject to examination by the tax authorities. In addition, in certain taxing jurisdictions, in the case of carryover tax attributes to years open for assessment, such attributes may be subject to reduction by taxing authorities.

A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:


(in thousands)	2023		2022		2021
Unrecognized tax benefits – January 1,	$	43,627	$	44,314	$	54,494

Increases based on tax positions related to prior period	—		—		9

Decrease from expiration of statute of limitations	(493)		(687)		(10,189)
Unrecognized tax benefits – December 31,	$	43,134	$	43,627	$	44,314

At December 31, 2023, 2022 and 2021, respectively, there were $41.8 million, $42.3 million and $43.3 million of unrecognized tax benefits that, if recognized, would affect the annual effective tax rate.

The Company classifies interest on tax deficiencies and income tax penalties within income tax expense. During the years ended December 31, 2022 and 2021, the Company recognized approximately $0.1 million, and $1.0 million in interest, respectively. The Company accrued approximately $0.4 million for the payment of interest at both December 31, 2023 and 2022.

Future tax settlements or statute of limitation expirations could result in a change to the Company’s uncertain tax positions. As of December 31, 2023, the Company believes that it is reasonably possible that approximately $0.7 million of unrecognized tax benefits could decrease in the next twelve months as a result of the expiration of statutes of limitation, audit settlements or resolution of tax uncertainties.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 946
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 13
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480990/946-20-50-13

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Paragraph 1
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 9: http://www.xbrl.org/2003/role/disclosureRef
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Reference 10: http://www.xbrl.org/2003/role/disclosureRef
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-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482603/740-30-50-2

+ Details

Income Taxes - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
Income Taxes - Narrative (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating Loss Carryforwards [Line Items]
Net deferred tax liability	$ 554,268	$ 431,375
Gross deferred tax liability	930,884	941,303
Deferred tax assets	376,616	509,928
Decrease in deferred tax asset valuation allowance	(800)
Undistributed foreign earnings	174,200
Unrecognized tax benefits that, if recognized, would affect the annual effective tax rate	41,800	42,300	$ 43,300
Income tax interest		100	$ 1,000
Income tax interest accrued	400	400
Decrease in unrecognized tax benefits that is reasonably possible in next twelve months	$ 700
Discontinued Operations, Disposed of by Sale \| UK Storage Solutions
Operating Loss Carryforwards [Line Items]
Net deferred tax liability		29,700
Gross deferred tax liability		33,700
Deferred tax assets		$ 4,000

Property, Plant and Equipment, net - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 521,370	$ 448,406
Less: accumulated depreciation	(180,483)	(143,747)
Property, plant and equipment, net	340,887	304,659
Land, buildings, and leasehold improvements
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	178,117	174,322
Vehicles and equipment
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	233,793	167,337
Office furniture, fixtures and software
Property, Plant and Equipment [Line Items]
Total property, plant and equipment	$ 109,460	$ 106,747

Debt - Schedule of Carrying Value of Debt Outstanding (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Sep. 25, 2023	Dec. 31, 2022	Aug. 25, 2020	Jun. 15, 2020
Debt Instrument [Line Items]
Finance Leases	$ 117,099		$ 74,370
Total debt	3,557,302		3,076,366
Less: current portion of long-term debt	18,786		13,324
Total long-term debt	$ 3,538,516		$ 3,063,042
Finance Lease, Liability, Statement of Financial Position [Extensible Enumeration]	Total long-term debt		Total long-term debt
Senior Notes \| 2025 Secured Notes
Debt Instrument [Line Items]
Interest rate	6.125%				6.125%
Debt	$ 522,735		$ 520,350
Outstanding principal borrowings on the credit facility	$ 526,500
Senior Notes \| 2025 Secured Notes \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt issuance costs			6,200
Senior Notes \| 2028 Secured Notes
Debt Instrument [Line Items]
Interest rate	4.625%			4.625%
Debt	$ 494,500		493,470
Senior Notes \| 2028 Secured Notes \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt issuance costs			6,500
Senior Notes \| 2031 Secured Notes
Debt Instrument [Line Items]
Interest rate	7.375%	7.375%
Debt	$ 493,709		0
Debt issuance costs	6,300
Line of Credit \| Asset Based Liability Facility Due 2027 \| Revolving Credit Facility
Debt Instrument [Line Items]
Debt	1,929,259		1,988,176
Outstanding principal borrowings on the credit facility	$ 2,000,000		31,800
Debt issuance costs			$ 31,800

Debt (Tables)

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Schedule of Debt

The carrying value of debt outstanding at December 31 consisted of the following:


(in thousands, except rates)	Interest rate	Year of maturity	2023		2022
2025 Secured Notes	6.125%	2025	$	522,735	$	520,350
ABL Facility	Varies	2027	1,929,259		1,988,176
2028 Secured Notes	4.625%	2028	494,500		493,470
2031 Secured Notes	7.375%	2031	493,709		—
Finance Leases	Varies	Varies	117,099		74,370
Total debt			3,557,302		3,076,366
Less: current portion of long-term debt			18,786		13,324
Total long-term debt			$	3,538,516	$	3,063,042

Schedule of Maturities of Debt and Lease Obligation

Maturities of debt, including finance leases, during the years subsequent to December 31, 2023 are as follows:


(in thousands)
2024	$	23,927
2025	550,050
2026	23,234
2027	1,975,992
2028	522,473
Thereafter	522,138
Total	$	3,617,814

Schedule of Amortization of Deferred Debt Issuance Costs

These debt costs are amortized and included as part of interest expense over the remaining contractual terms of those debt instruments for each of the next five years as follows:


(in thousands)	Debt issuance cost amortization
2024	$	11,891
2025	$	10,664
2026	$	9,555
2027	$	5,852
2028	$	1,677
Thereafter	$	2,667

Schedule of Debt Redemption


Year	Redemption Price
June 15, 2023	101.531	%
June 15, 2024 and thereafter	100.000	%


Year	Redemption Price
August 15, 2023	102.313	%
August 15, 2024	101.156	%
August 15, 2025 and thereafter	100.000	%


Year	Redemption Price
October 1, 2026	103.688	%
October 1, 2027	101.844	%
October 1, 2028 and thereafter	100.000	%

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
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+ Details

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Organization and Nature of Operations

WillScot Mobile Mini Holdings Corp. (“WillScot Mobile Mini” and, together with its subsidiaries, the “Company”) is a leading business services provider specializing in innovative and flexible turnkey temporary space solutions in the United States (“US”), Canada and Mexico. The Company leases, sells, delivers and installs modular space solutions and portable storage products through an integrated network of branch locations that spans North America.

On July 1, 2020, a wholly-owned subsidiary of WillScot Corporation, a Delaware corporation, merged with and into Mobile Mini, Inc. (the “Merger”). At the effective time of the Merger, Mobile Mini, Inc. ("Mobile Mini") continued its existence as the surviving corporation in the Merger and a wholly-owned subsidiary of WillScot Corporation (“WillScot”). Immediately following the Merger, WillScot changed its name to “WillScot Mobile Mini Holdings Corp.”

On September 30, 2022, the Company completed the sale of its former Tank and Pump Solutions ("Tank and Pump") segment. On January 31, 2023, the Company completed the sale of its former United Kingdom Storage Solutions ("UK Storage Solutions") segment. The consolidated financial statements present the historical financial results of the former Tank and Pump segment and the UK Storage Solutions segment as income from discontinued operations for all periods presented and the carrying values of the UK Storage Solutions segment assets and liabilities within assets and liabilities held for sale for reporting periods prior to the segments' disposals. See Note 3 for further discussion.

Basis of Presentation and Principles of Consolidation

The consolidated financial statements were prepared in conformity with accounting principles generally accepted in the US (“GAAP”). The consolidated financial statements comprise the financial statements of WillScot Mobile Mini and its subsidiaries that it controls due to ownership of a majority voting interest. Subsidiaries are fully consolidated from the date of acquisition, being the date on which the Company obtains control, and continue to be consolidated until the date when such control ceases. The financial statements of the subsidiaries are prepared for the same reporting period as WillScot Mobile Mini. All intercompany balances and transactions are eliminated.

Reclassifications

Certain reclassifications have been made to prior year financial statements to conform to the current year presentation.

Accounting Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in these consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

Cash and Cash Equivalents

The Company considers all highly liquid instruments with a maturity of three months or less when purchased to be cash equivalents.

Trade Receivables and Allowance for Credit Losses

The Company is exposed to credit losses from trade receivables. The Company assesses each customer’s ability to pay for the products it leases or sells by conducting a credit review. The credit review considers expected billing exposure and timing for payment and the customer’s established credit rating. The Company performs its credit review of new customers at inception of the customer relationship and for existing customers when the customer transacts after a defined period of dormancy. The Company also considers contract terms and conditions, country risk and business strategy in the evaluation.

The Company monitors ongoing credit exposure through an active review of customer balances against contract terms and due dates. The Company may employ collection agencies and legal counsel to pursue recovery of defaulted receivables. The allowance for credit losses reflects the estimate of the amount of receivables that the Company will be unable to collect based on historical write-off experience and, as applicable, current conditions and reasonable and supportable forecasts that affect collectability. This estimate is sensitive to changing circumstances, including changes in the economy or in the particular circumstances of individual customers. Accordingly, the Company may be required to increase or decrease its allowances.

Specifically identifiable lease revenue receivables and sales receivables not deemed probable of collection are recorded as a reduction of revenue. The remaining provision for credit losses is recorded as selling, general and administrative expenses.

Activity in the allowance for credit losses for the years ended December 31 was as follows:


(in thousands)	2023		2022		2021
Balance at beginning of period	$	57,048	$	45,773	$	28,105
Provision for credit losses, net of recoveries(a)	49,650		34,881		37,469
Write-offs	(25,182)		(23,705)		(19,777)
Foreign currency translation and other	140		99		(24)
Balance at end of period	$	81,656	$	57,048	$	45,773

(a) For the years ended December 31, 2023, 2022 and 2021, the provision for credit losses included $25.2 million, $23.7 million and $19.8 million, respectively, recorded as a reduction to revenue for the provision of specific receivables whose collection was not considered probable.

The Company’s trade accounts receivable subject the Company to potential concentrations of credit risk. The Company performs on-going credit evaluations of its customers. Receivables related to sales are generally secured by the product sold to the customer. The Company generally has the right to repossess its rental units in the event of non-payment of receivables relating to the Company’s leasing operations.

Inventories

Inventories consist of raw materials, supplies, and finished units for sale. Inventories are measured at the lower of cost or net realizable value based on the weighted-average cost. The cost includes expenditures incurred in acquiring the inventories, production or conversion costs, and other costs incurred in bringing them to their existing location and condition.

Rental Equipment

Rental equipment is comprised of modular space and portable storage units held for rent or on rent to customers and value-added products and services (“VAPS”) which are in use or available to be used by customers. Rental equipment is measured at cost less accumulated depreciation and impairment losses. Cost includes expenditures that are directly attributable to the acquisition of the asset. Costs of improvements and conversions of rental equipment are capitalized when such costs extend the useful life of the equipment or increase the rental value of the unit. Costs incurred for equipment to meet a particular customer specification are either capitalized and depreciated over the lease term taking into consideration the residual value of the asset or charged to the customer at the beginning of the lease and expensed as incurred. Maintenance and repair costs are expensed as incurred.

Depreciation is computed using the straight-line method over estimated useful lives, as follows:


	Estimated Useful Life	Residual Value
Modular space units	10 - 30 years	20 - 55%
Portable storage units	7 - 30 years	20 - 55%
VAPS and other related rental equipment	1 - 10 years	0%

Property, Plant and Equipment

Property, plant and equipment is measured at cost less accumulated depreciation and impairment losses.

The Company capitalizes external costs and directly attributable internal costs to acquire or create internal use software incurred subsequent to the completion of the preliminary project stage. Costs associated with post-implementation activities are expensed as incurred. The Company evaluates implementation costs incurred in a cloud computing arrangement that is a service contract as described in Cloud Computing Arrangements below.

Land is not depreciated. Leasehold improvements are amortized over the lease term. Assets leased under finance leases are depreciated over the shorter of the lease term or their useful life, unless it is reasonably certain that the Company will obtain ownership by the end of the lease term. Maintenance and repair costs are expensed as incurred.

Depreciation is computed using the straight-line method over estimated useful lives as follows:


			Estimated Useful Life
Buildings and leasehold improvements			10 - 40 years
Vehicles, machinery, and equipment			3 - 30 years
Furniture and fixtures			3 - 10 years
Software			3 - 10 years

Impairment of Long-Lived Assets

When circumstances indicate the carrying amount of long-lived assets in a held-for-use asset group may not be recoverable, the Company evaluates the assets for potential impairment using internal projections of undiscounted cash flows

resulting from the use and eventual disposal of the assets. Events or changes in circumstances that may necessitate a recoverability evaluation include, but are not limited to, adverse changes in the regulatory environment or an expectation it is more likely than not that the asset will be disposed of before the end of its previously estimated useful life. If the carrying amount of the assets exceeds the undiscounted cash flows, an impairment expense is recognized for the amount by which the carrying amount of the asset group exceeds its fair value (subject to the carrying amount not being reduced below fair value for any individual long-lived asset that is determinable without undue cost and effort).

Consistent with the provisions of Leases (Topic 842) ("ASC 842"), the Company assesses whether any operating lease asset impairment exists in accordance with the measurement guidance in Accounting Standard Codification ("ASC") 360, Property Plant and Equipment.

Cloud Computing Arrangements

In accordance with ASU 2018-15, Goodwill and Other – Internal-Use Software (Subtopic 350-40) (“ASC 350-40"), the Company evaluates implementation costs incurred in a cloud computing arrangement that is a service contract under the internal-use software framework. Costs related to preliminary project activities and post implementation activities are expensed as incurred. Costs incurred in the development stage are generally capitalized as other assets. Amortization expense is calculated on a straight-line basis over the contractual term of the cloud computing arrangement and recorded as selling, general and administrative expense.

Purchase Accounting

The Company accounts for acquisitions of businesses under the acquisition method. Under the acquisition method of accounting, the Company records assets acquired and liabilities assumed at their respective estimated fair values on the date of acquisition. Goodwill is measured as the excess of the fair value of the consideration transferred over the fair value of the identifiable net assets and is assigned to the Company's reporting units that are expected to benefit from the acquisition. When appropriate, our estimates of the fair values of assets and liabilities acquired include assistance from independent third-party valuation firms. Valuations are finalized as soon as practicable, but not later than one year from the acquisition date. Any subsequent changes to purchase price allocations result in a corresponding adjustment to goodwill. Transaction costs are expensed in the acquisition of a business.

Long-lived assets (principally rental equipment), goodwill and other intangible assets generally represent the largest components of our acquisitions. Rental equipment is valued utilizing a market approach or a replacement cost approach. Intangible assets are recognized at their estimated fair values as of the date of acquisition and generally consist of customer relationships and trade names. Determination of the estimated fair value of intangible assets requires judgment. The estimated fair value of customer relationships is determined based on estimates and judgments regarding discounted future after-tax earnings and cash flows arising from lease renewals and new lease arrangements expected from customer relationships. The fair value of trade name intangible assets is determined utilizing the relief from royalty method. Under this form of the income approach, a royalty rate based on observed market royalties is applied to projected revenue supporting the trade name and discounted to present value.

Acquisitions of assets and liabilities that do not meet the definition of a business are accounted for as asset acquisitions. An asset acquisition is accounted for by allocating the cost of the acquisition to the individual assets acquired and liabilities assumed on a relative fair value basis. Goodwill is not recognized in an asset acquisition. Any consideration in excess of net assets acquired is allocated to qualifying acquired assets on a relative fair value basis. The Company measures the fair value of assets acquired utilizing observable market transaction data for comparable assets or recent purchase prices. Transaction costs are considered a component of the cost of an asset acquisition.

Evaluation of Goodwill Impairment

The Company performs its annual impairment test of goodwill at the reporting unit level as of October 1, as well as during any reporting period in which events or changes in circumstances occur that, in management’s judgment, may constitute triggering events under ASC 350-20, Intangibles – Goodwill and Other, Testing Goodwill for Impairment. The Company performs its assessment of goodwill utilizing either a qualitative or quantitative impairment test. The qualitative impairment test assesses company-specific, industry, market and general economic factors to determine whether it is more likely than not that the fair value of the reporting unit is less than its carrying amount. If the Company concludes that it is more likely than not that the fair value of the reporting unit is less than its carrying amount, or elects not to use the qualitative impairment test, a quantitative impairment test is performed. The quantitative impairment test involves a comparison of the estimated fair value of a reporting unit to its carrying amount.

Determining the fair value of a reporting unit is judgmental in nature and involves the use of significant estimates and assumptions. These estimates and assumptions include revenue growth rates and operating margins used to calculate projected future cash flows, risk-adjusted discount rates, value of net operating losses, future economic and market conditions and determination of appropriate market comparables. Management bases fair value estimates on assumptions it believes to be reasonable but that are unpredictable and inherently uncertain. Actual future results may differ from these estimates.

If the carrying amount of the reporting unit exceeds the calculated fair value of the reporting unit, an impairment charge would be recognized for the excess of carrying value over fair value, not to exceed the amount of goodwill allocated to that reporting unit.

Intangible Assets Other than Goodwill

Intangible assets that are acquired by the Company and determined to have an indefinite useful life are not amortized but are tested for impairment at least annually. The Company’s indefinite-lived intangible assets consist of the Williams Scotsman and Mobile Mini trade names. The Company performs its assessment of indefinite-lived intangible assets utilizing either a qualitative or quantitative impairment test. When utilizing a quantitative impairment test, the Company calculates fair value using a relief-from-royalty method. This method is used to estimate the cost savings that accrue to the owner of an intangible asset who would otherwise have to pay royalties or license fees on revenues earned through the use of the asset. If the carrying amount of the indefinite-lived intangible asset exceeds its fair value, an impairment charge would be recorded to the extent the recorded indefinite-lived intangible asset exceeds the fair value.

Other intangible assets that have finite useful lives are measured at cost less accumulated amortization and impairment losses, if any. Amortization is recognized in profit or loss over the estimated useful lives of the intangible asset.

Retirement Benefit Obligation

The Company provides benefits to certain of its employees under defined contribution benefit plans. The Company’s contributions to these plans are generally based on a percentage of employee compensation or employee contributions. These plans are funded on a current basis. For its US and Canada employees, the Company sponsors defined contribution benefit plans that have discretionary matching contribution and profit-sharing features. For the years ended December 31, 2023, 2022 and 2021, the Company made matching contributions of $14.1 million, $13.8 million and $10.9 million to these plans, respectively.

Stock-Based Compensation

Prior to the Merger, stock awards were granted under the WillScot Corporation 2017 Incentive Award Plan (the "2017 Incentive Plan"), which included Restricted Stock Awards ("RSAs") and Restricted Stock Units. On June 24, 2020, WillScot's stockholders approved the WillScot Mobile Mini 2020 Incentive Award Plan ("2020 Incentive Plan") to take effect pending completion of the Merger and, as a result, all future incentive awards are granted under the 2020 Incentive Plan. The 2020 Incentive Plan is administered by the Compensation Committee. Under the 2020 Incentive Plan, the Compensation Committee may grant an aggregate of 6,488,988 shares of Common Stock in the form of non-qualified stock options, incentive stock options, stock appreciation rights, RSAs, RSUs, performance compensation awards and stock bonus awards. Stock-based payments, including the grant of stock options, RSAs and RSUs, are subject to service-based vesting requirements, and expense is recognized on a straight-line basis over the vesting period. Forfeitures are accounted for as they occur.

Stock-based compensation expense includes grants of stock options, time-based RSUs ("Time-Based RSUs") and performance-based RSUs ("Performance-Based RSUs", together with Time-Based RSUs, the "RSUs"). RSUs are recognized in the financial statements based on their fair value. In addition, stock-based payments to non-executive directors include grants of RSAs. Time-Based RSUs and RSAs are valued based on the intrinsic value of the difference between the exercise price, if any, of the award and the fair market value of WillScot Mobile Mini's Common Stock on the grant date. Performance-Based RSUs are valued based on a Monte Carlo simulation model to reflect the impact of the Performance-Based RSUs market condition. The probability of satisfying a market condition is considered in the estimation of the grant-date fair value for Performance-Based RSUs and the compensation cost is not reversed if the market condition is not achieved, provided the requisite service has been provided.

RSAs cliff vest in a one year period. Time-Based RSUs vest ratably over a period of four years. Certain Performance-Based RSUs cliff vest based on achievement of the relative total stockholder return ("TSR") of the Company's Common Stock as compared to the TSR of the constituents in an Index at the grant date over the performance period of three years. For certain 2023, 2022, and 2021 grants, the TSR of the Company's Common Stock is compared to the TSR of the constituents in the S&P 400 index. The target number of RSUs may be adjusted from 0% to 200% based on the TSR attainment levels defined by the Compensation Committee. The 100% target payout is tied to performance at the 50% percentile, with a payout curve ranging from 0% (for performance less than the 25% percentile) to 200% (for performance at or above the 85% percentile). For grants in 2020 and prior, the TSR of the Company's Common Stock is compared to the TSR of constituents in the Russell 3000 index. The target number of RSUs may be adjusted from 0% to 150% based on the TSR attainment levels defined by the Compensation Committee. The 100% target payout is tied to performance at the 50% percentile, with a payout curve ranging from 0% (for performance less than the 25% percentile) to 150% (for performance at or above the 75% percentile). Vesting is also subject to continued service requirements through the vesting date.

For 555,790 Performance-Based RSUs granted in 2021, the awards cliff vest based on achievement of specified share prices of the Company's Common Stock at annual measurement dates over performance periods of 4.5 years to 4.8 years. The target number of RSUs may be adjusted from 0 to 1,333,334 based on the stock price attainment levels defined by the Company's Compensation Committee. The 555,790 RSU target payout is tied to a stock price of $47.50, with a payout ranging from 0 RSUs (for a stock price less than $42.50) to 1,333,334 RSUs (for a stock price of $60.00 or greater).

Stock options vest in tranches over a period of four years and expire ten years from the grant date. The fair value of each stock option award on the grant date is estimated using the Black-Scholes option-pricing model with the following assumptions: expected dividend yield, expected stock price volatility, weighted-average risk-free interest rate and weighted-average expected term of the options. The volatility assumption used in the Black-Scholes option-pricing model was based on a blend of peer group volatility and Company trading history as the Company did not have a sufficient trading history as a

stand-alone public company to rely exclusively on its own trading history. Future calculations may use the Company trading history. Additionally, due to an insufficient history with respect to stock option activity and post-vesting cancellations, the expected term assumption was based on the simplified method under GAAP, which is based on the vesting period and contractual term for each tranche of awards. The mid-point between the weighted-average vesting term and the expiration date is used as the expected term under this method. The risk-free interest rate used in the Black-Scholes model is based on the implied US Treasury bill yield curve at the date of grant with a remaining term equal to the Company’s expected term assumption. WillScot Mobile Mini has never declared or paid a cash dividend on common shares.

Foreign Currency Translation and Transactions

The Company’s reporting currency is the US Dollar (“USD”). Exchange rate adjustments resulting from foreign currency transactions are recognized in profit or loss, whereas effects resulting from the translation of financial statements are reflected as a component of accumulated other comprehensive loss, which is a component of shareholders’ equity.

The assets and liabilities of subsidiaries whose functional currency is different from the USD are translated into USD at exchange rates at the reporting date and income and expenses are translated using average exchange rates for the respective period.

Exchange rate adjustments resulting from transactions in foreign currencies (currencies other than the Company entities’ functional currencies) are remeasured to the respective functional currencies using exchange rates at the dates of the transactions and are recognized in currency (gains) losses on the consolidated statements of operations.

Foreign exchange gains and losses arising from a receivable or payable to a consolidated Company entity, the settlement of which is neither planned nor anticipated in the foreseeable future, are considered to form part of a net investment in the Company entity and are included within accumulated other comprehensive loss.

Derivative Instruments and Hedging Activities

The Company utilizes derivative financial instruments to manage its exposure to fluctuations in interest rates on variable rate debt and currency exchange rates. The Company does not use derivatives for trading or speculative purposes.

The Company records derivatives on the balance sheet at fair value within prepaid expenses and other current assets and other non-current assets (if in an unrealized gain position) or within accrued liabilities and other non-current liabilities (if in an unrealized loss position). If a derivative is designated as a cash flow hedge and meets the highly effective threshold, the changes in the fair value of derivatives are recorded in accumulated other comprehensive loss. Amounts reported in accumulated other comprehensive loss related to the cash flow hedges are reclassified to earnings when the hedged item impacts earnings. For any derivative instruments not designated as hedging instruments, changes in fair value would be recognized in earnings in the period that the change occurs. The Company assesses, both at the inception of the hedge and on an ongoing quarterly basis, whether the derivatives designated as cash flow hedges are highly effective in offsetting the changes in cash flows of the hedged items. In the consolidated statements of cash flows, cash inflows and outflows related to derivative instruments are presented based on the underlying nature of the hedged items.

The use of derivative financial instruments carries certain risks, including the risk that the counterparties to these contractual arrangements are not able to perform under the agreements. To mitigate this risk, the Company enters into derivative financial instruments only with counterparties with high credit ratings and with major financial institutions. The Company does not anticipate that any of the counterparties will fail to meet their obligations.

Revenue Recognition

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer. A contract’s transaction price is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied.

Leasing and Services Revenue

The majority of revenue is generated by rental income subject to the guidance in ASC 842. The remaining revenue is generated by performance obligations in contracts with customers for services or sale of units subject to the guidance in Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (Topic 606) ("ASC 606").

Leasing Revenue

Income from operating leases is recognized on a straight-line basis over the lease term. The Company's lease arrangements can include multiple lease and non-lease components. Examples of lease components include, but are not limited to, the lease of modular space and portable storage units and VAPS. Examples of non-lease components include, but are not limited to, the delivery, installation, maintenance, and removal services commonly provided in a bundled transaction with the lease components. Arrangement consideration is allocated between lease deliverables and non-lease components based on the relative estimated selling (leasing) price of each deliverable. Estimated selling (leasing) price of the lease deliverables is based upon the estimated stand-alone selling price of the related performance obligations using an adjusted market approach.

When leases and services are billed in advance, recognition of revenue is deferred until services are rendered. If equipment is returned prior to the contractually obligated period, the excess, if any, between the amount the customer is

contractually required to pay over the cumulative amount of revenue recognized to date is recognized as incremental revenue upon return.

Rental equipment is leased primarily under operating leases. Rental contracts with customers within our Modular segment, as defined in Note 18, are generally based on a 28‑day or monthly rate and billing cycle. Operating lease minimum contractual terms generally range from 1 month to 60 months and our leases are customarily renewable on a month-to-month basis after their initial term. Operating lease minimum contractual terms averaged approximately 10 months across this segment's rental fleet for the year ended December 31, 2023. Rental contracts with customers within the Storage segment, as defined in Note 18, are generally based on a 28-day rate and billing cycle. The rental continues until cancelled by the Company or the customer. The Company records changes in estimated collectability directly against leasing revenue.

The Company may use third parties to satisfy its performance obligations, including both the provision of VAPS and other services. To determine whether it is the principal or agent in the arrangement, the Company reviews each third-party relationship on a contract-by-contract basis. The Company is considered an agent when its role is to arrange for another entity to provide the VAPS and other services to the customer. In these instances, the Company does not control the rental unit or service before it is provided and the risk of performance is held by the third party. The Company is considered the principal when it controls the VAPS or other services prior to transferring control to the customer and retains the risk of performance. WillScot Mobile Mini may be a principal in the fulfillment of some leasing contracts and services elements and an agent for other elements within the same contract. Revenue is recognized on a gross basis when the Company is the principal in the arrangement and on a net basis when it is the agent.

Services Revenue

The Company generally has three non-lease service-related performance obligations in its contracts with customers:

•Delivery and installation of the modular or portable storage unit;

•Maintenance and other ad hoc services performed during the lease term; and

•Removal services that occur at the end of the lease term.

Consideration is allocated to each of these performance obligations within the contract based upon their estimated relative standalone selling prices using an adjusted market approach. Revenue from these activities is recognized as the services are performed.

Sales Revenue

Sales revenue is generated by the sale of new and rental units. Revenue from the sale of new and rental units is generally recognized at a point in time upon the transfer of control to the customer, which occurs when the unit is delivered and installed in accordance with the contract. Sales transactions constitute a single performance obligation.

Other Matters

The Company's non-lease revenues do not include material amounts of variable consideration, other than the variability noted for services arrangements expected to be performed beyond a twelve-month period.

The Company's payment terms vary by the type and location of its customer and the product or services offered. The time between invoicing and when payment is due is not significant. While the Company may bill certain customers in advance, its contracts do not contain a significant financing component based on the short length of time between upfront billings and the performance of contracted services. For certain products, services, or customer types, the Company requires payment before the products or services are delivered to the customer. At December 31, 2023, current deferred revenue and customer deposits included deferred revenue of $222.5 million and customer deposits of $2.0 million, respectively. At December 31, 2022, current deferred revenue and customer deposits included deferred revenue of $195.8 million and customer deposits of $8.0 million, respectively.

Revenue is recognized net of sales tax billed to customers, which is subsequently remitted to governmental authorities.

Leases as Lessee

The Company leases real estate for certain of its branch offices, administrative offices, rental equipment storage properties, vehicles and equipment, and administrative operations. The Company determines if an arrangement is or contains a lease at inception. Leases are classified as either finance or operating at inception of the lease, with classification affecting the pattern of expense recognition in the income statement. Short-term leases, defined as leases with an initial term of 12 months or less, are not recorded on the balance sheet. Lease expense for short-term leases is recognized on a straight-line basis over the lease term.

The Company has leases that contain both lease and non-lease components and has elected, as an accounting policy, to not separate lease components and non-lease components. Right of use ("ROU") assets and liabilities are recognized at the commencement date based on the present value of lease payments over the lease term. The lease liability is calculated as the present value of the remaining minimum rental payments for existing leases using either the rate implicit in the lease or, if none exists, the Company's incremental borrowing rate, as the discount rate. The Company uses its incremental borrowing rate at commencement date in determining the present value of lease payments for those leases where the implicit rate is not known. The Company's incremental borrowing rate is a hypothetical rate based on its understanding of what would be the Company's secured credit rating. Variable lease payments are expensed in the period in which the

obligation for those payments is incurred. Variable lease payments include payments for common area maintenance, real estate taxes, management fees and insurance.

Many of the Company’s real estate lease agreements include one or more options to extend the lease, which are not included in the minimum lease terms unless the Company is reasonably certain it will exercise the option. Additionally, the Company’s leases do not generally include options to terminate the lease prior to the end of the lease term. The Company’s lease agreements do not contain any material residual value guarantees or material restrictive covenants.

Advertising and Promotion

Advertising and promotion costs, which are expensed as incurred, were $10.5 million, $8.5 million and $7.6 million for the years ended December 31, 2023, 2022 and 2021, respectively.

Shipping Costs

The Company includes third-party costs to deliver rental equipment to customers in costs of leasing and services and cost of sales.

Income Taxes

The Company accounts for income taxes under the asset and liability method, which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the financial statements. Under this method, deferred tax assets and liabilities are determined based on the differences between the financial statement and tax basis of assets and liabilities using enacted tax rates in effect for the year in which the differences are expected to reverse. The effect of a change in tax rates on deferred tax assets and liabilities is recognized in income in the period that includes the enactment date.

The Company records deferred tax assets to the extent it believes that it is more likely than not that these assets will be realized. In making such determination, the Company considers all available positive and negative evidence, including scheduled reversals of deferred tax liabilities, projected future taxable income, tax planning strategies and recent results of operations. Valuation allowances are recorded to reduce the deferred tax assets to an amount that will more likely than not be realized.

The Company assesses the likelihood that each of the deferred tax assets will be realized. To the extent management believes realization of any deferred tax assets is not likely, the Company establishes a valuation allowance. When a valuation allowance is established or there is an increase in an allowance in a reporting period, tax expense is generally recorded in the Company’s consolidated statement of operations. Conversely, to the extent circumstances indicate that a valuation allowance is no longer necessary, that portion of the valuation allowance is reversed, which generally reduces the Company’s income tax expense.

Deferred tax liabilities are recognized for the income taxes on the undistributed earnings of wholly-owned foreign subsidiaries unless such earnings are indefinitely reinvested, or will only be repatriated when possible to do so at minimal additional tax cost. Income tax relating to items recognized directly in equity is recognized in equity and not in profit (loss) for the year.

In accordance with applicable authoritative guidance, the Company accounts for uncertain income tax positions using a benefit recognition model with a two-step approach; a more-likely-than-not recognition criterion; and a measurement approach that measures the position as the largest amount of tax benefit that is greater than 50% likely of being realized upon ultimate settlement. If it is not more-likely-than-not that the benefit of the tax position will be sustained on its technical merits, no benefit is recorded. Uncertain tax positions that relate only to timing of when an item is included on a tax return are considered to have met the recognition threshold. The Company classifies interest on tax deficiencies and income tax penalties within income tax expense.

The Company accounts for any impacts of the Global Intangible Low-Taxed Income ("GILTI") in the period in which they are incurred.

Fair Value Measurements

The Company maximizes the use of observable inputs and minimizes the use of unobservable inputs when measuring fair value. A financial instrument’s categorization within the fair value hierarchy is based upon the lowest level of input that is significant to the fair value measurement. The inputs are prioritized into three levels that may be used to measure fair value. See further discussion of the levels in Note 15.

Warrants

The Company accounted for warrants in accordance with applicable accounting guidance provided in ASC 815-40, Contracts in Entity's Own Equity, as either derivative liabilities or as equity instruments depending on the specific terms of the warrant agreements. In periods subsequent to issuance, warrants classified as liabilities were subject to remeasurement at each balance sheet date and transaction date with changes in the estimated fair values of the common stock warrant liabilities and gains and losses on extinguishment of common stock warrant liabilities reported in the consolidated statements of operations. Effective November 29, 2022, no warrants were outstanding.

Recently Issued and Adopted Accounting Standards

Recently Issued Accounting Standards

ASU 2023-07. Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures

In November 2023, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update No. 2023-07 Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures ("ASU 2023-07"). ASU 2023-07 expands the breadth and frequency of segment disclosures, requiring disclosure of (i) significant segment expenses, (ii) other segment items, (iii) the chief operating decision maker's title and position, (iv) how the chief operating decision maker uses the reported measures of a segment's profit or loss and (v) interim disclosure of all segment profit, loss and asset disclosures currently required annually. ASU 2023-07 clarifies that a public entity may report one or more measures of segment profit or loss and requires that single reportable segment entities provide all required segment disclosures. ASU 2023-07 is effective for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024. Early adoption is permitted.

ASU 2023-09. Income Taxes (Topic 740): Improvements to Income Tax Disclosures

In December 2023, the FASB issued Accounting Standards Update No. 2023-09 Income Taxes (Topic 740): Improvements to Income Tax Disclosures ("ASU 2023-09"). ASU 2023-09 requires entities to disclose more detailed information in their reconciliation of their statutory tax rate to their effective tax rate. Public business entities (PBEs) are required to provide this incremental detail in a numerical, tabular format, while all other entities will do so through enhanced qualitative disclosures. The ASU also requires entities to disclose more detailed information about income taxes paid, including by jurisdiction; pretax income (or loss) from continuing operations; and income tax expense (or benefit). ASU 2023-09 is effective for fiscal years beginning after December 15, 2024. Early adoption is permitted.

Recently Adopted Accounting Standards

ASU 2021-08. Business Combinations (Topic 815): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers

In October 2021, the FASB issued Accounting Standards Update No. 2021-08, Business Combinations (Topic 805): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers ("ASU 2021-08"). ASU 2021-08 requires that an acquirer recognize and measure contract assets and liabilities acquired in a business combination in accordance with FASB Accounting Standards Codification 606, Revenue from Contracts with Customers ("ASC 606"). The Company adopted ASU 2021-08 on January 1, 2023 on a prospective basis. The adoption of ASU 2021-08 did not have a material impact on the Company's financial statements or related disclosures.

Summary of Significant Accounting Policies - Schedule of Rental Equipment (Details)	Dec. 31, 2023
VAPS and other related rental equipment
Property, Plant and Equipment [Line Items]
Residual Value	0.00%
Minimum \| Modular space units
Property, Plant and Equipment [Line Items]
Estimated Useful Life	10 years
Residual Value	20000.00%
Minimum \| Portable storage units
Property, Plant and Equipment [Line Items]
Estimated Useful Life	7 years
Residual Value	20000.00%
Minimum \| VAPS and other related rental equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life	1 year
Maximum \| Modular space units
Property, Plant and Equipment [Line Items]
Estimated Useful Life	30 years
Residual Value	55.00%
Maximum \| Portable storage units
Property, Plant and Equipment [Line Items]
Estimated Useful Life	30 years
Residual Value	55000.00%
Maximum \| VAPS and other related rental equipment
Property, Plant and Equipment [Line Items]
Estimated Useful Life	10 years

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Schedule of Activity in Allowance for Credit Losses

Activity in the allowance for credit losses for the years ended December 31 was as follows:


(in thousands)	2023		2022		2021
Balance at beginning of period	$	57,048	$	45,773	$	28,105
Provision for credit losses, net of recoveries(a)	49,650		34,881		37,469
Write-offs	(25,182)		(23,705)		(19,777)
Foreign currency translation and other	140		99		(24)
Balance at end of period	$	81,656	$	57,048	$	45,773

Schedule of Property, Plant and Equipment, net

Depreciation is computed using the straight-line method over estimated useful lives, as follows:


	Estimated Useful Life	Residual Value
Modular space units	10 - 30 years	20 - 55%
Portable storage units	7 - 30 years	20 - 55%
VAPS and other related rental equipment	1 - 10 years	0%

Depreciation is computed using the straight-line method over estimated useful lives as follows:


			Estimated Useful Life
Buildings and leasehold improvements			10 - 40 years
Vehicles, machinery, and equipment			3 - 30 years
Furniture and fixtures			3 - 10 years
Software			3 - 10 years

Rental equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Modular space units	$	3,541,451	$	3,197,779
Portable storage units	1,009,059		849,193
Value added products	204,933		203,444
Total rental equipment	4,755,443		4,250,416
Less: accumulated depreciation	(1,374,128)		(1,173,129)
Rental equipment, net	$	3,381,315	$	3,077,287

Property, plant and equipment, net at December 31 consisted of the following:


(in thousands)	2023		2022
Land, buildings, and leasehold improvements	$	178,117	$	174,322
Vehicles and equipment	233,793		167,337
Office furniture, fixtures and software	109,460		106,747
Total property, plant and equipment	521,370		448,406
Less: accumulated depreciation	(180,483)		(143,747)
Property, plant and equipment, net	$	340,887	$	304,659

Discontinued Operations - Schedule of Cash Flows From Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating activities of discontinued operations:
Depreciation and amortization	$ 338,654	$ 343,507	$ 318,202
Investing activities of discontinued operations:
Proceeds from sale of rental equipment	51,290	70,703	55,210
Purchase of rental equipment and refurbishments	(226,976)	(443,138)	(278,498)
Proceeds from the sale of property, plant and equipment	13,272	1,775	16,911
Purchase of property, plant and equipment	(22,237)	(43,664)	(30,498)
Discontinued Operations, Disposed of by Sale \| Tank and Pump
Operating activities of discontinued operations:
Depreciation and amortization		14,248	23,685
Investing activities of discontinued operations:
Proceeds from sale of rental equipment		918	1,480
Purchase of rental equipment and refurbishments		(21,831)	(17,747)
Proceeds from the sale of property, plant and equipment		0	388
Purchase of property, plant and equipment		(525)	(1,743)
Discontinued Operations, Disposed of by Sale \| UK Storage Solutions
Operating activities of discontinued operations:
Depreciation and amortization	0	10,160	11,315
Investing activities of discontinued operations:
Proceeds from sale of rental equipment	514	1,455	1,363
Purchase of rental equipment and refurbishments	(371)	(23,931)	(27,830)
Proceeds from the sale of property, plant and equipment	8	504	387
Purchase of property, plant and equipment	$ (64)	$ (3,752)	$ (1,680)

Equity - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	$ 1,565,300	$ 1,996,763	$ 2,063,873
Other comprehensive loss before reclassifications	28,904	(45,581)	(3,865)
Reclassifications from AOCI to income	(11,550)	4,530	12,001
Ending balance	1,261,250	1,565,300	1,996,763
Total
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(70,122)	(29,071)	(37,207)
Ending balance	(52,768)	(70,122)	(29,071)
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	(70,122)	(25,574)	(24,694)
Other comprehensive loss before reclassifications	14,091	(44,548)	(880)
Reclassifications from AOCI to income	0	0	0
Ending balance	(56,031)	(70,122)	(25,574)
Unrealized (gains) losses on hedging activities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance	0	(3,497)	(12,513)
Other comprehensive loss before reclassifications	14,813	(1,033)	(2,985)
Reclassifications from AOCI to income	(11,550)	4,530	12,001
Ending balance	3,263	0	(3,497)
Unrealized (gains) losses on hedging activities \| Interest rate swap
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Reclassifications from AOCI to income	11,600	(4,500)	(12,000)
Tax benefit from reclassification from AOCI to income	$ 2,900	$ 1,100	$ 3,000

- Definition

Amount of equity (deficit) attributable to parent. Excludes temporary equity and equity attributable to noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 852
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-Name Accounting Standards Codification
-Section 55
-Paragraph 10
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-URI https://asc.fasb.org//1943274/2147481372/852-10-55-10

Reference 2: http://www.xbrl.org/2003/role/exampleRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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+ Details

Debt

12 Months Ended

Dec. 31, 2023

Debt Disclosure [Abstract]

Debt

The carrying value of debt outstanding at December 31 consisted of the following:


(in thousands, except rates)	Interest rate	Year of maturity	2023		2022
2025 Secured Notes	6.125%	2025	$	522,735	$	520,350
ABL Facility	Varies	2027	1,929,259		1,988,176
2028 Secured Notes	4.625%	2028	494,500		493,470
2031 Secured Notes	7.375%	2031	493,709		—
Finance Leases	Varies	Varies	117,099		74,370
Total debt			3,557,302		3,076,366
Less: current portion of long-term debt			18,786		13,324
Total long-term debt			$	3,538,516	$	3,063,042

Maturities of debt, including finance leases, during the years subsequent to December 31, 2023 are as follows:


(in thousands)
2024	$	23,927
2025	550,050
2026	23,234
2027	1,975,992
2028	522,473
Thereafter	522,138
Total	$	3,617,814

The Company records debt issuance costs as offsets against the carrying value of the related debt. These debt costs are amortized and included as part of interest expense over the remaining contractual terms of those debt instruments for each of the next five years as follows:


(in thousands)	Debt issuance cost amortization
2024	$	11,891
2025	$	10,664
2026	$	9,555
2027	$	5,852
2028	$	1,677
Thereafter	$	2,667

Asset Backed Lending Facility

On July 1, 2020, certain subsidiaries of the Company entered into an asset-based credit agreement (the "ABL Facility") that initially provided for revolving credit facilities in the aggregate principal amount of up to $2.4 billion, consisting of: (i) a senior secured asset-based US dollar revolving credit facility in the aggregate principal amount of $2.0 billion and (ii) a $400.0 million senior secured asset-based multicurrency revolving credit facility available to be drawn in US Dollars, Canadian Dollars, British Pounds Sterling or Euros. The ABL Facility was initially scheduled to mature on July 1, 2025.

On June 30, 2022, certain subsidiaries of the Company entered into an amendment to the ABL Facility to, among other things, extend the expiration date until June 30, 2027 and increase the aggregate principal amount of the revolving credit facilities to $3.7 billion, consisting of: (i) a senior secured asset-based US dollar revolving credit facility in the aggregate principal amount of $3.3 billion (the “US Facility”), (ii) a $400.0 million senior secured asset-based multicurrency revolving credit facility (the "Multicurrency Facility"), available to be drawn in US Dollars, Canadian Dollars, British Pounds Sterling or Euros, and (iii) an accordion feature that permits the Company to increase the lenders' commitments in an aggregate amount not to exceed the greater of $750.0 million and the amount of suppressed availability as defined in the ABL Facility, subject to the satisfaction of customary conditions including lender approval, plus any voluntary prepayments that are accompanied by permanent commitment reductions under the ABL facility. The amendment also converted the interest rate for borrowings denominated in US Dollars from a LIBOR-based rate to a Term SOFR-based rate with an interest period of one month and adjusted the applicable margins. The applicable margin for Canadian BA rate, Term SOFR, British Pounds Sterling and Euros loans is 1.50%. The facility includes a credit spread adjustment of 0.10% in addition to the applicable margin. The applicable margin for base rate and Canadian Prime Rate loans is 0.50%. The applicable margins are subject to one step down of 0.25% based on excess availability or one step up of 0.25% based on the Company's leverage ratio. The ABL Facility requires the payment of a commitment fee on the unused available borrowings of 0.20% annually. At December 31, 2023, the weighted average interest rate for borrowings under the ABL Facility, as adjusted for the effects of the 2023 interest rate swap agreements, was 6.24%. Refer to Note 14 for a more detailed discussion on interest rate management.

Borrowing availability under the US Facility and the Multicurrency Facility is equal to the lesser of (i) the aggregate Revolver Commitments and (ii) the Borrowing Base ("Line Cap"). At December 31, 2023, the Line Cap was $3.2 billion and the Borrowers had approximately $1.2 billion of available borrowing capacity under the ABL Facility, including $1.0 billion under the US Facility and $189.4 million under the Multicurrency Facility. Borrowing capacity under the ABL Facility is made available for up to $220.0 million letters of credit and $220.0 million of swingline loans. At December 31, 2023, the available capacity was $191.5 million of letters of credit and $216.2 million of swingline loans. At December 31, 2023, letters of credit and bank guarantees carried fees of 1.625%. The Company had issued $28.5 million of standby letters of credit under the ABL Facility at December 31, 2023.

The Company had approximately $2.0 billion outstanding principal under the ABL Facility at December 31, 2023. Debt issuance costs of $26.8 million and $31.8 million were included in the carrying value of the ABL Facility at December 31, 2023 and December 31, 2022. As of December 31, 2022, the Company had no outstanding principal borrowings on the Multicurrency Facility and $2.5 million of related debt issuance costs, which were recorded in other non-current assets on the consolidated balance sheets.

The obligations of the US Borrowers are unconditionally guaranteed by Holdings and each existing and subsequently acquired or organized direct or indirect wholly-owned US organized restricted subsidiary of Holdings, other than excluded subsidiaries (together with Holdings, the "US Guarantors"). The obligations of the Multicurrency Borrowers are unconditionally guaranteed by the US Borrowers and the US Guarantors, and each existing and subsequently acquired or organized direct or indirect wholly-owned Canadian organized restricted subsidiary of Holdings other than certain excluded subsidiaries (together with the US Guarantors, the "ABL Guarantors").

Senior Secured Notes

On June 15, 2020, the Company completed a private offering of $650.0 million in aggregate principal amount of its 6.125% senior secured notes due 2025 (the "2025 Secured Notes") to qualified institutional buyers pursuant to Rule 144A of the Securities Act of 1933, as amended ("Rule 144A"). The 2025 Secured Notes mature on June 15, 2025 and bear interest at a rate of 6.125% per annum. Interest is payable semi-annually on June 15 and December 15 of each year. In 2021, using cash on hand and borrowings on the ABL Facility, the Company redeemed $123.5 million of its 2025 Secured Notes and recorded a loss on extinguishment of debt in the consolidated statement of operations of $6.0 million comprised of a redemption premium of $3.7 million and write off of unamortized deferred financing fees of $2.3 million. As of December 31, 2023 the aggregate principal amount outstanding for the 2025 Secured Notes was $526.5 million. Unamortized deferred financing costs pertaining to the 2025 Secured Notes were $3.8 million as of December 31, 2023.

On August 25, 2020, the Company completed a private offering of $500.0 million in aggregate principal amount of 4.625% senior secured notes due 2028 (the "2028 Secured Notes") to qualified institutional buyers pursuant to Rule 144A. The 2028 Secured Notes mature on August 15, 2028 and bear interest at a rate of 4.625% per annum. Interest is payable semi-annually on August 15 and February 15 of each year. Unamortized deferred financing costs pertaining to the 2028 Secured Notes were $5.5 million as of December 31, 2023.

On September 25, 2023, the Company completed a private offering of $500.0 million in aggregate principal amount of 7.375% senior secured notes due 2031 (the "2031 Secured Notes") to qualified institutional buyers pursuant to Rule 144A. Proceeds were used to repay approximately $494.0 million of outstanding indebtedness under the ABL Facility and certain fees and expenses. The 2031 Secured Notes mature on October 1, 2031 and bear interest at a rate of 7.375% per annum. Interest is payable semi-annually on April 1 and October 1 of each year, beginning April 1, 2024. Unamortized deferred financing costs pertaining to the 2031 Secured Notes were $6.3 million as of December 31, 2023.

The tables below depict the redemption prices (expressed as percentages of the principal amount) of the notes if redeemed during the twelve-month period commencing on the dates below, plus accrued and unpaid interest, if any, to but not including the date of redemption.

2025 Secured Notes


Year	Redemption Price
June 15, 2023	101.531	%
June 15, 2024 and thereafter	100.000	%

2028 Secured Notes


Year	Redemption Price
August 15, 2023	102.313	%
August 15, 2024	101.156	%
August 15, 2025 and thereafter	100.000	%

2031 Secured Notes

The Company may redeem the 2031 Secured Notes at any time before October 1, 2026 at a redemption price equal to 100% of the principal amount thereof, plus a customary make whole premium for the 2031 Secured Notes being redeemed, plus accrued and unpaid interest, if any, to but not including the redemption date. Before October 1, 2026, the Company may redeem up to 40% of the aggregate principal amount of the 2031 Secured Notes at a price equal to 107.375% of the principal amount of the 2031 Secured Notes being redeemed, plus accrued and unpaid interest, if any, to but not including the redemption date with the net proceeds of certain equity offerings. At any time prior to October 1, 2026, the Company may also redeem up to 10% of the aggregate principal amount at a redemption price equal to 103% of the principal amount of the 2031 Secured Notes being redeemed during each twelve-month period commencing with the issue date, plus accrued and unpaid interest, if any, to but not including the redemption date.


Year	Redemption Price
October 1, 2026	103.688	%
October 1, 2027	101.844	%
October 1, 2028 and thereafter	100.000	%

The 2025 Secured Notes, the 2028 Secured Notes, and the 2031 Secured Notes (collectively, “the Secured Notes”) are unconditionally guaranteed by certain subsidiaries of the Company (collectively, “the Note Guarantors”). WillScot Mobile Mini is not a guarantor of the Secured Notes. The Note Guarantors are guarantors or borrowers under the ABL Facility. To the extent lenders under the ABL Facility release the guarantee of any Note Guarantor, such Note Guarantor will also be released from obligations under the Secured Notes. The Secured Notes and related guarantees are secured by a second priority security interest in substantially the same assets of Williams Scotsman, Inc., a wholly owned indirect subsidiary of the Company (“WSI”), and the Note Guarantors securing the ABL Facility. Upon the repayment of the 2025 Secured Notes and the 2028 Secured Notes, if the lien associated with the ABL Facility represents the only lien outstanding on the collateral under the 2031 Secured Notes (other than certain permitted), the collateral securing the 2031 Secured Notes will be released and the 2031 Secured Notes will become unsecured subject to satisfaction of customary conditions.

Finance Leases

The Company maintains finance leases primarily related to transportation related equipment. At December 31, 2023 and December 31, 2022, obligations under the finance leases were $117.1 million and $74.4 million, respectively.

The Company is in compliance with all debt covenants and restrictions for the aforementioned debt instruments for the year ended December 31, 2023.

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Section 50
-Paragraph 1C
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1C

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1E
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1E

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1I
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481139/470-20-50-1I

+ Details

Summary of Significant Accounting Policies (Policies)

12 Months Ended

Dec. 31, 2023

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation and Principles of Consolidation

The consolidated financial statements were prepared in conformity with accounting principles generally accepted in the US (“GAAP”).

Principles of Consolidation

The consolidated financial statements comprise the financial statements of WillScot Mobile Mini and its subsidiaries that it controls due to ownership of a majority voting interest. Subsidiaries are fully consolidated from the date of acquisition, being the date on which the Company obtains control, and continue to be consolidated until the date when such control ceases. The financial statements of the subsidiaries are prepared for the same reporting period as WillScot Mobile Mini. All intercompany balances and transactions are eliminated.

Reclassification

Reclassifications

Certain reclassifications have been made to prior year financial statements to conform to the current year presentation.

Accounting Estimates

Cash and Cash Equivalents

The Company considers all highly liquid instruments with a maturity of three months or less when purchased to be cash equivalents.

Trade Receivables and Allowance for Credit Losses

Concentration of Credit Risk

Inventories

Rental Equipment and Property, Plant and Equipment

Rental Equipment

Depreciation is computed using the straight-line method over estimated useful lives, as follows:


	Estimated Useful Life	Residual Value
Modular space units	10 - 30 years	20 - 55%
Portable storage units	7 - 30 years	20 - 55%
VAPS and other related rental equipment	1 - 10 years	0%

Property, Plant and Equipment

Property, plant and equipment is measured at cost less accumulated depreciation and impairment losses.

Depreciation is computed using the straight-line method over estimated useful lives as follows:


			Estimated Useful Life
Buildings and leasehold improvements			10 - 40 years
Vehicles, machinery, and equipment			3 - 30 years
Furniture and fixtures			3 - 10 years
Software			3 - 10 years

Impairment of Long-Lived Assets

Cloud Computing Arrangements

Purchase Accounting

Evaluation of Goodwill Impairment

Intangible Assets Other than Goodwill

Retirement Benefit Obligation

Stock-Based Compensation

Foreign Currency Translation and Transactions

Derivative Instruments and Hedging Activities

Revenue Recognition and Shipping Costs

Revenue Recognition

Leasing and Services Revenue

Leasing Revenue

contractually required to pay over the cumulative amount of revenue recognized to date is recognized as incremental revenue upon return.

Services Revenue

The Company generally has three non-lease service-related performance obligations in its contracts with customers:

•Delivery and installation of the modular or portable storage unit;

•Maintenance and other ad hoc services performed during the lease term; and

•Removal services that occur at the end of the lease term.

Sales Revenue

Other Matters

Revenue is recognized net of sales tax billed to customers, which is subsequently remitted to governmental authorities.

Shipping Costs

The Company includes third-party costs to deliver rental equipment to customers in costs of leasing and services and cost of sales.

Leases as Lessee

obligation for those payments is incurred. Variable lease payments include payments for common area maintenance, real estate taxes, management fees and insurance.

Advertising and Promotion

Advertising and promotion costs, which are expensed as incurred, were $10.5 million, $8.5 million and $7.6 million for the years ended December 31, 2023, 2022 and 2021, respectively.

Income Taxes

The Company accounts for any impacts of the Global Intangible Low-Taxed Income ("GILTI") in the period in which they are incurred.

Fair Value Measurements

Warrants

Recently Issued Accounting Standards

Recently Issued and Adopted Accounting Standards

Recently Issued Accounting Standards

ASU 2023-07. Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures

ASU 2023-09. Income Taxes (Topic 740): Improvements to Income Tax Disclosures

Recently Adopted Accounting Standards

ASU 2021-08. Business Combinations (Topic 815): Accounting for Contract Assets and Contract Liabilities from Contracts with Customers