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SEGMENT REPORTING - Summary of Revenue Attributable to Services Provided by Company (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue from External Customer [Line Items]
Revenues	$ 1,557,283	$ 1,264,542	$ 1,085,089
Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues	1,227,416	971,743	785,211
Resource Solutions
Revenue from External Customer [Line Items]
Revenues	$ 329,867	$ 292,799	$ 299,878
Product concentration risk | Revenue
Revenue from External Customer [Line Items]
Revenues percentage	100.00%	100.00%	100.00%
Product concentration risk | Revenue | Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues percentage	78.80%	76.80%	72.40%
Product concentration risk | Revenue | Resource Solutions
Revenue from External Customer [Line Items]
Revenues percentage	21.20%	23.20%	27.60%
Collection | Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues	$ 961,784	$ 710,590	$ 539,587
Collection | Product concentration risk | Revenue | Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues percentage	61.80%	56.20%	49.70%
Disposal | Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues	$ 246,718	$ 244,582	$ 227,971
Disposal | Product concentration risk | Revenue | Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues percentage	15.80%	19.30%	21.00%
Landfill gas-to-energy | Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues	$ 7,958	$ 6,617	$ 7,519
Landfill gas-to-energy | Product concentration risk | Revenue | Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues percentage	0.50%	0.50%	0.70%
Processing | Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues	$ 10,956	$ 9,954	$ 10,134
Processing | Resource Solutions
Revenue from External Customer [Line Items]
Revenues	$ 130,459	$ 105,997	$ 119,045
Processing | Product concentration risk | Revenue | Solid Waste Operations
Revenue from External Customer [Line Items]
Revenues percentage	0.70%	0.80%	1.00%
Processing | Product concentration risk | Revenue | Resource Solutions
Revenue from External Customer [Line Items]
Revenues percentage	8.40%	8.40%	10.90%
National Accounts | Resource Solutions
Revenue from External Customer [Line Items]
Revenues	$ 199,408	$ 186,802	$ 180,833
National Accounts | Product concentration risk | Revenue | Resource Solutions
Revenue from External Customer [Line Items]
Revenues percentage	12.80%	14.80%	16.70%

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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