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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, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Revenue from External Customer [Line Items]
Revenues	$ 411,627	$ 352,735	$ 1,129,797	$ 904,975
Solid waste operations
Revenue from External Customer [Line Items]
Revenues	325,165	277,248	885,046	689,743
Collection
Revenue from External Customer [Line Items]
Revenues	252,579	206,093	687,896	495,917
Disposal
Revenue from External Customer [Line Items]
Revenues	67,453	66,337	182,716	181,433
Landfill gas-to-energy
Revenue from External Customer [Line Items]
Revenues	1,651	1,797	6,144	5,042
Processing
Revenue from External Customer [Line Items]
Revenues	3,482	3,021	8,290	7,351
Resource Solutions operations
Revenue from External Customer [Line Items]
Revenues	86,462	75,487	244,751	215,232
Processing
Revenue from External Customer [Line Items]
Revenues	34,954	27,782	97,992	75,970
National Accounts
Revenue from External Customer [Line Items]
Revenues	$ 51,508	$ 47,705	$ 146,759	$ 139,262

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