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BUSINESS COMBINATIONS - Narrative (Details) - business	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Minimum
Business Acquisition [Line Items]
Useful life of finite lived intangible assets (in years)	4 years
Maximum
Business Acquisition [Line Items]
Useful life of finite lived intangible assets (in years)	10 years
Western | Tuck-in Solid Waste Collection Business
Business Acquisition [Line Items]
Number of businesses acquired	4	2

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