REMEDIAL LIABILITIES - Changes to Remedial Liabilities (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 111,243
Accretion	925
Changes in estimates recorded to consolidated statement of operations	859
Expenditures	(2,938)
Currency translation and other	(303)
Ending balance	109,786
Remedial Liabilities for Landfill Sites
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	1,880
Accretion	22
Changes in estimates recorded to consolidated statement of operations	5
Expenditures	(13)
Currency translation and other	0
Ending balance	1,894
Remedial Liabilities for Inactive Sites
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	60,277
Accretion	521
Changes in estimates recorded to consolidated statement of operations	75
Expenditures	(831)
Currency translation and other	(13)
Ending balance	60,029
Remedial Liabilities (Including Superfund) for Non-Landfill Operations
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	49,086
Accretion	382
Changes in estimates recorded to consolidated statement of operations	779
Expenditures	(2,094)
Currency translation and other	(290)
Ending balance	$ 47,863