ACQUISITION (Details) $ in Millions	3 Months Ended	12 Months Ended
	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($) business	Sep. 30, 2024 USD ($)
Business Acquisition [Line Items]
Number of acquisitions | business		0
Goodwill		$ 2,755.6	$ 2,734.9
Southeastern U.S. Regulated Waste
Business Acquisition [Line Items]
Purchase price	$ 15.8
Cash	14.0
Promissory notes	1.8
Goodwill	8.2
Tangible and intangible assets	$ 6.1