SEGMENT REPORTING - Summary of Revenues Attributable to Services Provided by Company (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Revenue from External Customer [Line Items]
Revenues	$ 289,645	$ 283,666	$ 552,241	$ 517,693
Solid waste operations
Revenue from External Customer [Line Items]
Revenues	217,552	202,147	412,495	369,305
Collection
Revenue from External Customer [Line Items]
Revenues	149,848	137,261	289,825	256,793
Disposal
Revenue from External Customer [Line Items]
Revenues	63,629	60,204	115,096	103,356
Power generation
Revenue from External Customer [Line Items]
Revenues	1,321	1,753	3,245	4,407
Processing
Revenue from External Customer [Line Items]
Revenues	2,754	2,929	4,329	4,749
Resource Solutions operations
Revenue from External Customer [Line Items]
Revenues	72,093	81,519	139,746	148,388
Processing
Revenue from External Customer [Line Items]
Revenues	25,383	33,867	48,189	61,263
National Accounts
Revenue from External Customer [Line Items]
Revenues	$ 46,710	$ 47,652	$ 91,557	$ 87,125