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v3.20.4

Segment Reporting - Summarized Financial Information for Company's Reportable Segments (Parenthetical) (Detail) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2020 | Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ 148,980,000 | $ 156,448,000 | $ 137,673,000 | $ 129,453,000 | $ 147,221,000 | $ 173,562,000 | $ 127,439,000 | $ 122,008,000 | $ 572,554,000 | $ 570,230,000 | $ 498,330,000
Sales revenues |  |  |  |  |  |  |  |  |  | (128,371,000) | (115,303,000) | (96,649,000)
Sales [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales revenues |  |  |  |  |  |  |  |  |  | (124,604,000) | (110,229,000) | (92,618,000)
Enviroplex [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues | [1] |  |  |  |  |  |  |  |  | 32,737,000 | 39,814,000 | 29,046,000
Sales revenues | [1] |  |  |  |  |  |  |  |  | (32,737,000) | (39,814,000) | (29,046,000)
Mobile Modular [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  | 321,524,000 | 301,010,000 | 254,574,000
Sales revenues |  |  |  |  |  |  |  |  |  | (65,278,000) | (49,299,000) | (40,742,000)
Operating Segments [Member] | Enviroplex [Member] | Sales [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  | 34,014,000 | 39,814,000 | 30,407,000
Inter-segment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales revenues |  |  |  |  |  |  |  |  |  |  | $ 0 |
Type of Revenue [Extensible List] |  |  |  |  |  |  |  |  |  |  | us-gaap:ProductMember |
Inter-segment Eliminations [Member] | Mobile Modular [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales revenues |  |  |  |  |  |  |  |  |  | $ 1,277,000 |  | $ 1,361,000
Type of Revenue [Extensible List] |  |  |  |  |  |  |  |  |  | us-gaap:ProductMember |  | us-gaap:ProductMember
[1] | Gross Enviroplex sales revenues were $34,014, $39,814 and $30,407 in 2020, 2019 and 2018, respectively. There were $1,277 and $1,361 inter-segment sales to Mobile Modular in 2020 and 2018, which have been eliminated in consolidation. There were no inter-segment sales in 2019.

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