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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, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | $ 101,400 |  | $ 196,900 |  |  |
Total non-lease revenues |  |  |  | 32,724 |  | $ 33,623 |
Total revenues |  | 127,439 | $ 116,983 | 249,447 |  | 222,068 |
Leasing [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | 101,431 | 86,747 | 196,939 |  | 170,301 |
Non-lease Rental Related Services [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 12,375 | 10,973 | 22,330 |  | 20,855 |
Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 13,032 | 18,714 | 29,086 |  | 29,969 |
Non-lease Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 601 | 549 | 1,092 |  | 943 |
Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 26,008 | 30,236 | 52,508 |  | 51,767 |
Mobile Modular [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  |  |  | 15,444 |  | 14,169 |
Total revenues |  | 67,722 | 59,871 | 132,814 |  | 113,722 |
Mobile Modular [Member] | Leasing [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | 56,732 | 46,634 | 110,476 |  | 91,905 |
Mobile Modular [Member] | Non-lease Rental Related Services [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 4,242 | 4,275 | 7,546 |  | 8,260 |
Mobile Modular [Member] | Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 6,725 | 8,961 | 14,725 |  | 13,554 |
Mobile Modular [Member] | Non-lease Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 23 | 1 | 67 |  | 3 |
Mobile Modular [Member] | Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 10,990 | 13,237 | 22,338 |  | 21,817 |
TRS-RenTelco [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  |  |  | 12,312 |  | 13,182 |
Total revenues |  | 32,310 | 30,352 | 62,986 |  | 58,390 |
TRS-RenTelco [Member] | Leasing [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | 26,486 | 23,136 | 51,166 |  | 45,636 |
TRS-RenTelco [Member] | Non-lease Rental Related Services [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 672 | 707 | 1,241 |  | 1,514 |
TRS-RenTelco [Member] | Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 4,642 | 6,012 | 9,621 |  | 10,351 |
TRS-RenTelco [Member] | Non-lease Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 510 | 497 | 958 |  | 889 |
TRS-RenTelco [Member] | Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 5,824 | 7,216 | 11,820 |  | 12,754 |
Adler Tanks [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  |  |  | 1,091 |  | 543 |
Total revenues |  | 26,335 | 23,049 | 49,770 |  | 44,227 |
Adler Tanks [Member] | Leasing [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Leasing revenues |  | 18,213 | 16,977 | 35,297 |  | 32,760 |
Adler Tanks [Member] | Non-lease Rental Related Services [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 7,461 | 5,991 | 13,543 |  | 11,081 |
Adler Tanks [Member] | Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 593 | 30 | 863 |  | 335 |
Adler Tanks [Member] | Non-lease Other [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 68 | 51 | 67 |  | 51 |
Adler Tanks [Member] | Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 8,122 | 6,072 | 14,473 |  | 11,467 |
Enviroplex [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues | [1] |  |  | 3,877 |  | 5,729 |
Total revenues |  | 1,072 | 3,711 | 3,877 | [1] | 5,729 | [1]
Enviroplex [Member] | Non-lease Sales [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | 1,072 | 3,711 | 3,877 |  | 5,729 |
Enviroplex [Member] | Non-lease Revenues [Member] |  |  |  |  |  |  |
Disaggregation Of Revenue [Line Items] |  |  |  |  |  |  |
Total non-lease revenues |  | $ 1,072 | $ 3,711 | $ 3,877 |  | $ 5,729 |
[1] | Gross Enviroplex sales revenues were $3,877 and $6,524 for the six months ended June 30, 2019 and 2018, respectively. There were $795 inter-segment sales to Mobile Modular in the six months ended June 30, 2018, 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=77888428&loc=SL77919372-209981 + Details
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