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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, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Revenue from External Customer [Line Items]
Revenues	$ 160,269	$ 151,133	$ 448,087	$ 421,236
Collection
Revenue from External Customer [Line Items]
Revenues	70,040	65,581	196,185	187,117
Disposal
Revenue from External Customer [Line Items]
Revenues	44,881	43,412	118,334	115,050
Power generation
Revenue from External Customer [Line Items]
Revenues	1,215	1,610	4,121	4,777
Processing
Revenue from External Customer [Line Items]
Revenues	2,499	1,974	6,296	4,694
Solid waste operations
Revenue from External Customer [Line Items]
Revenues	118,635	112,577	324,936	311,638
Organics
Revenue from External Customer [Line Items]
Revenues	9,662	10,266	29,881	31,372
Customer solutions
Revenue from External Customer [Line Items]
Revenues	15,612	13,878	44,064	40,361
Recycling
Revenue from External Customer [Line Items]
Revenues	$ 16,360	$ 14,412	$ 49,206	$ 37,865

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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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