Summary of Significant Accounting Policies - Additional Information (Detail)		3 Months Ended	12 Months Ended
	Jan. 28, 2024 USD ($) shares $ / shares	Dec. 31, 2023 USD ($) $ / shares shares	Dec. 31, 2023 USD ($) Segment Division $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) shares	Aug. 31, 2015 shares
Summary Of Significant Accounting Policies [Line Items]
Number of divisions | Division			3
Number of reportable segments | Segment			4
Common stock, par value | $ / shares		$ 0	$ 0	$ 0
Impairments of long-lived assets			$ 0	$ 0	$ 0
Period for warranties for rental equipment			90 days
Period for warranties for equipment manufactured			1 year
Property, plant and equipment depreciation expenses			$ 9,700,000	9,000,000	8,900,000
Capitalized in internal use of software				100,000
Total advertising expenses			5,900,000	5,000,000	5,100,000
Goodwill and trade name intangible assets		$ 323,200,000	323,200,000	106,400,000
Impairment charges				$ 0	$ 0
Goodwill and intangible assets impairment charge		$ 0	$ 0
Anti-dilutive securities excluded from computation of diluted earnings per share | shares			0	0	0
Common stock shares authorized for repurchase | shares						2,000,000
Common stock repurchased | shares			0	0	0
Shares remain authorized for repurchase | shares		1,309,805	1,309,805
Unbilled receivables related to end-of-lease services		$ 59,500,000	$ 59,500,000	$ 52,600,000
Period for credit risk identified			30 days
Accounts receivable, credit loss			$ 2,633,000	837,000	$ 451,000
Allowance for credit losses		2,801,000	2,801,000	2,300,000	$ 2,125,000
Net investment in sales-type leases		3,700,000	3,700,000	4,500,000
Credit loss expense			0
Estimated fair value notes payable		169,200,000	169,200,000	89,300,000
Recorded fair value of notes payable		175,000,000	175,000,000	$ 100,000,000
Subsequent Event [Member] | First-Step Merger [Member] | WillScot Mobile Mini Holdings Corp [Member]
Summary Of Significant Accounting Policies [Line Items]
Par value | $ / shares	$ 0.0001
Par value issued and outstanding prior to effective time | $ / shares	$ 0
Business acquisition, per share cash consideration	$ 123
Business acquisition, exchange ratio | shares	2.8211
Business acquisition, consideration transferred cash percent	60.00%
Business acquisition, consideration transferred stock percent	40.00%
Minimum [Member]
Summary Of Significant Accounting Policies [Line Items]
Capitalized in internal use of software		$ 200,000	$ 200,000
Sales-type leases terms		12 months	12 months
Maximum [Member]
Summary Of Significant Accounting Policies [Line Items]
Sales-type leases terms		36 months	36 months