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, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation Of Revenue [Line Items]
Leasing revenues		$ 564,100
Total revenues		831,842	$ 635,665	$ 534,591
Leasing [Member]
Disaggregation Of Revenue [Line Items]
Leasing revenues		564,068	456,896	385,944
Non-lease Rental Related Services [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		58,642	33,009	27,503
Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		204,997	144,415	119,853
Non-lease Other [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		4,135	1,345	1,291
Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		267,774	178,769	148,647
Mobile Modular [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		562,236	379,211	301,365
Mobile Modular [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Leasing revenues		367,753	267,779	223,383
Mobile Modular [Member] | Non-lease Rental Related Services [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		36,734	14,348	13,091
Mobile Modular [Member] | Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		155,267	97,045	64,809
Mobile Modular [Member] | Non-lease Other [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		2,482	39	82
Mobile Modular [Member] | Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		194,483	111,432	77,982
Portable Storage [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		101,137	82,506	61,951
Portable Storage [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Leasing revenues		77,181	63,422	45,792
Portable Storage [Member] | Non-lease Rental Related Services [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		19,250	16,082	11,943
Portable Storage [Member] | Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		4,587	2,933	4,175
Portable Storage [Member] | Non-lease Other [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		119	69	41
Portable Storage [Member] | Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		23,956	19,084	16,159
TRS-RenTelco [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		148,277	150,778	140,194
TRS-RenTelco [Member] | Leasing [Member]
Disaggregation Of Revenue [Line Items]
Leasing revenues		119,134	125,695	116,769
TRS-RenTelco [Member] | Non-lease Rental Related Services [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		2,658	2,579	2,469
TRS-RenTelco [Member] | Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		24,951	21,267	19,788
TRS-RenTelco [Member] | Non-lease Other [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		1,534	1,237	1,168
TRS-RenTelco [Member] | Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		29,143	25,083	23,425
Enviroplex [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	[1]	20,192	23,170	31,081
Enviroplex [Member] | Non-lease Sales [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		20,192	23,170	31,081
Enviroplex [Member] | Non-lease Revenues [Member]
Disaggregation Of Revenue [Line Items]
Total non-lease revenues		$ 20,192	$ 23,170	$ 31,081

[1] Gross Enviroplex sales revenues were $22,615, $24,162 and $32,095 in 2022, 2021 and 2020, respectively. There were $2,422, $992 and $969 inter-segment sales to Mobile Modular in 2023, 2022 and 2021, respectively, which have been eliminated in consolidation.