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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 | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | $ 97,900 |  | $ 200,100 |  |  |
Total non-lease revenues |  |  |  | 47,005 |  | $ 32,724 |
Total revenues |  | 137,673 | $ 127,439 | 267,126 |  | 249,447 |
Leasing [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | 97,872 | 101,431 | 200,109 |  | 196,939 |
Non-lease Rental Related Services [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 9,352 | 12,375 | 22,150 |  | 22,330 |
Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 30,083 | 13,032 | 44,012 |  | 29,086 |
Non-lease Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 366 | 601 | 855 |  | 1,092 |
Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 39,801 | 26,008 | 67,017 |  | 52,508 |
Mobile Modular [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  |  |  | 23,315 |  | 15,444 |
Total revenues |  | 76,762 | 67,722 | 149,960 |  | 132,814 |
Mobile Modular [Member] | Leasing [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | 57,890 | 56,732 | 117,126 |  | 110,476 |
Mobile Modular [Member] | Non-lease Rental Related Services [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 3,533 | 4,242 | 10,223 |  | 7,546 |
Mobile Modular [Member] | Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 15,316 | 6,725 | 22,572 |  | 14,725 |
Mobile Modular [Member] | Non-lease Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 23 | 23 | 39 |  | 67 |
Mobile Modular [Member] | Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 18,872 | 10,990 | 32,834 |  | 22,338 |
TRS-RenTelco [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  |  |  | 12,098 |  | 12,312 |
Total revenues |  | 33,079 | 32,310 | 67,142 |  | 62,986 |
TRS-RenTelco [Member] | Leasing [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | 26,837 | 26,486 | 55,057 |  | 51,166 |
TRS-RenTelco [Member] | Non-lease Rental Related Services [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 563 | 672 | 1,282 |  | 1,241 |
TRS-RenTelco [Member] | Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 5,336 | 4,642 | 10,008 |  | 9,621 |
TRS-RenTelco [Member] | Non-lease Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 343 | 510 | 795 |  | 958 |
TRS-RenTelco [Member] | Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 6,242 | 5,824 | 12,085 |  | 11,820 |
Adler Tanks [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  |  |  | 890 |  | 1,091 |
Total revenues |  | 18,633 | 26,335 | 39,322 |  | 49,770 |
Adler Tanks [Member] | Leasing [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | 13,145 | 18,213 | 27,926 |  | 35,297 |
Adler Tanks [Member] | Non-lease Rental Related Services [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 5,256 | 7,461 | 10,645 |  | 13,543 |
Adler Tanks [Member] | Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 232 | 593 | 730 |  | 863 |
Adler Tanks [Member] | Non-lease Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  |  | 68 | 21 |  | 67 |
Adler Tanks [Member] | Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 5,488 | 8,122 | 11,396 |  | 14,473 |
Enviroplex [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues | [1] |  |  | 10,702 |  | 3,877 |
Total revenues |  | 9,199 | 1,072 | 10,702 | [1] | 3,877 | [1]
Enviroplex [Member] | Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 9,199 | 1,072 | 10,702 |  | 3,877 |
Enviroplex [Member] | Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | $ 9,199 | $ 1,072 | $ 10,702 |  | $ 3,877 |
[1] | Gross Enviroplex sales revenues were $11,979 and $3,877 for the six months ended June 30, 2020 and 2019, respectively. There were $1,277 inter-segment sales to Mobile Modular in the six months ended June 30, 2020, which required elimination in consolidation. There were no inter-segment sales in the six months ended June 30, 2019.

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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=121576215&loc=SL77919372-209981 + Details
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