Revenue Recognition - Summary of Disaggregates the Company's Revenues from Continuing Operations by Lease and Non Lease (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Leasing revenues	$ 591,900
Total revenues	910,942	$ 831,842	$ 635,665
Leasing [Member]
Disaggregation Of Revenue [Line Items]
Leasing revenues	591,856	564,068	456,896
Non-lease Rental Related Services [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	54,120	58,642	33,009
Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	260,258	204,997	144,415
Non-lease Other [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	4,708	4,135	1,345
Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	319,086	267,774	178,769
Mobile Modular [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	635,366	562,236	379,211
Mobile Modular [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Leasing revenues	414,195	367,753	267,779
Mobile Modular [Member] | Non-lease Rental Related Services [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	34,778	36,734	14,348
Mobile Modular [Member] | Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	183,234	155,267	97,045
Mobile Modular [Member] | Non-lease Other [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	3,159	2,482	39
Mobile Modular [Member] | Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	221,171	194,483	111,432
Portable Storage [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	94,497	101,137	82,506
Portable Storage [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Leasing revenues	71,999	77,181	63,422
Portable Storage [Member] | Non-lease Rental Related Services [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	16,565	19,250	16,082
Portable Storage [Member] | Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	5,695	4,587	2,933
Portable Storage [Member] | Non-lease Other [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	238	119	69
Portable Storage [Member] | Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	22,498	23,956	19,084
TRS-RenTelco [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	135,249	148,277	150,778
TRS-RenTelco [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Leasing revenues	105,662	119,134	125,695
TRS-RenTelco [Member] | Non-lease Rental Related Services [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	2,777	2,658	2,579
TRS-RenTelco [Member] | Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	25,499	24,951	21,267
TRS-RenTelco [Member] | Non-lease Other [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	1,311	1,534	1,237
TRS-RenTelco [Member] | Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	29,587	29,143	25,083
Enviroplex [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	45,830	20,192	23,170
Enviroplex [Member] | Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	45,830	20,192	23,170
Enviroplex [Member] | Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues	$ 45,830	$ 20,192	$ 23,170