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Revenue Recognition - Summary of Disaggregates the Company's Revenue by Lease and Non Lease (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2022 | Mar. 31, 2021
Disaggregation Of Revenue [Line Items] |  |  |
Leasing revenues |  | $ 118,500 |
Total non-lease revenues |  | 16,815 | $ 15,439
Total revenues |  | 145,373 | 121,195
Leasing [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Leasing revenues |  | 118,484 | 97,955
Non-lease Rental Related Services [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 11,386 | 8,575
Non-lease Sales [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 15,227 | 14,339
Non-lease Other [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 276 | 326
Non-lease Revenues [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 26,889 | 23,240
Mobile Modular [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 10,746 | 7,940
Total revenues |  | 90,645 | 68,648
Mobile Modular [Member] | Leasing [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Leasing revenues |  | 74,595 | 57,803
Mobile Modular [Member] | Non-lease Rental Related Services [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 5,650 | 3,206
Mobile Modular [Member] | Non-lease Sales [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 10,375 | 7,620
Mobile Modular [Member] | Non-lease Other [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 25 | 19
Mobile Modular [Member] | Non-lease Revenues [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 16,050 | 10,845
TRS-RenTelco [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 4,308 | 5,587
Total revenues |  | 33,491 | 33,603
TRS-RenTelco [Member] | Leasing [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Leasing revenues |  | 29,411 | 27,813
TRS-RenTelco [Member] | Non-lease Rental Related Services [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 551 | 608
TRS-RenTelco [Member] | Non-lease Sales [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 3,278 | 4,877
TRS-RenTelco [Member] | Non-lease Other [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 251 | 305
TRS-RenTelco [Member] | Non-lease Revenues [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 4,080 | 5,790
Adler Tanks [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 844 | 678
Total revenues |  | 20,320 | 17,710
Adler Tanks [Member] | Leasing [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Leasing revenues |  | 14,478 | 12,339
Adler Tanks [Member] | Non-lease Rental Related Services [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 5,185 | 4,761
Adler Tanks [Member] | Non-lease Sales [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 657 | 608
Adler Tanks [Member] | Non-lease Other [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  |  | 2
Adler Tanks [Member] | Non-lease Revenues [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 5,842 | 5,371
Enviroplex [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues | [1] | 917 | 1,234
Total revenues | [1] | 917 | 1,234
Enviroplex [Member] | Non-lease Sales [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | 917 | 1,234
Enviroplex [Member] | Non-lease Revenues [Member] |  |  |
Disaggregation Of Revenue [Line Items] |  |  |
Total non-lease revenues |  | $ 917 | $ 1,234
[1] | Gross Enviroplex sales revenues were $917 and $2,090 for the three months ended March 31, 2022 and 2021, respectively. There were $0 and $856 inter-segment sales to Mobile Modular in the three months ended March 31, 2022 and 2021, respectively, which required elimination in consolidation.

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- Definition Amount of lease income from operating, direct financing, and sales-type leases. Includes, but is not limited to, variable lease payments, interest income, profit (loss) recognized at commencement, and lease payments paid and payable to lessor. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=124258985&loc=SL77919372-209981 + Details
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