Acquisitions - Summary of Preliminary Purchase Price Allocations Reflecting Estimated Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands	Sep. 30, 2023	Apr. 01, 2023	Mar. 01, 2023	Feb. 01, 2023	Dec. 31, 2022
Intangible assets:
Goodwill	$ 323,771				$ 106,403
Vesta Modular [Member]
Business Acquisition [Line Items]
Rental equipment				$ 213,929
Intangible assets:
Goodwill				211,730
Cash				11
Accounts receivable				22,401
Property, plant and equipment				1,437
Prepaid expenses and other assets				3,550
Accounts payable and accrued liabilities				(27,153)
Deferred income				(14,273)
Deferred income taxes				(12,222)
Total purchase price				437,210
Vesta Modular [Member] | Customer Relationships [Member]
Intangible assets:
Intangible assets				29,900
Vesta Modular [Member] | Trade Name
Intangible assets:
Intangible assets				800
Vesta Modular [Member] | Non-compete [Member]
Intangible assets:
Intangible assets				$ 7,100
Brekke Storage [Member]
Business Acquisition [Line Items]
Rental equipment			$ 10,798
Intangible assets:
Goodwill			4,083
Property, plant and equipment			875
Deferred income			(382)
Total purchase price			16,382
Brekke Storage [Member] | Customer Relationships [Member]
Intangible assets:
Intangible assets			949
Brekke Storage [Member] | Non-compete [Member]
Intangible assets:
Intangible assets			$ 59
Dixie Storage [Member]
Business Acquisition [Line Items]
Rental equipment		$ 2,758
Intangible assets:
Goodwill		1,555
Property, plant and equipment		318
Deferred income		(161)
Total purchase price		4,751
Dixie Storage [Member] | Customer Relationships [Member]
Intangible assets:
Intangible assets		259
Dixie Storage [Member] | Non-compete [Member]
Intangible assets:
Intangible assets		$ 22