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SEGMENT REPORTING - Summary of Revenues Attributable to Services Provided by Company (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue from External Customer [Line Items]
Revenues	$ 172,832	$ 160,269	$ 485,936	$ 448,087
Collection
Revenue from External Customer [Line Items]
Revenues	79,611	70,040	220,650	196,185
Disposal
Revenue from External Customer [Line Items]
Revenues	48,737	44,881	136,217	118,334
Power generation
Revenue from External Customer [Line Items]
Revenues	920	1,215	4,014	4,121
Processing
Revenue from External Customer [Line Items]
Revenues	2,079	2,499	5,847	6,296
Solid waste operations
Revenue from External Customer [Line Items]
Revenues	131,347	118,635	366,728	324,936
Organics
Revenue from External Customer [Line Items]
Revenues	13,413	9,662	40,259	29,881
Customer solutions
Revenue from External Customer [Line Items]
Revenues	17,195	15,612	48,315	44,064
Recycling
Revenue from External Customer [Line Items]
Revenues	$ 10,877	$ 16,360	$ 30,634	$ 49,206

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+ References

No definition available.

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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

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