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Segment Reporting - Summary of Revenues Attributable to Services Provided by Company (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2016 | Jun. 30, 2015 | Jun. 30, 2016 | Jun. 30, 2015
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ 144,670 | $ 143,714 | $ 270,103 | $ 260,292
Solid Waste Operations Collection [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 63,685 | 60,636 | 121,536 | 113,962
Solid Waste Operations Disposal [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 39,384 | 44,064 | 71,637 | 71,831
Solid Waste Operations Power Generation [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 1,460 | 1,564 | 3,167 | 3,612
Solid Waste Operations Processing [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 1,747 | 1,665 | 2,720 | 2,785
Solid Waste Operations [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 106,276 | 107,929 | 199,060 | 192,190
Organics [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 12,171 | 10,847 | 21,106 | 19,867
Customer Solutions [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | 13,407 | 13,476 | 26,483 | 26,479
Recycling [Member] |  |  |  |
Revenue from External Customer [Line Items] |  |  |  |
Revenues | $ 12,816 | $ 11,462 | $ 23,454 | $ 21,756

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- Definition Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.1) -URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688 + Details
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