REMEDIAL LIABILITIES (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	Mar. 31, 2022	Jun. 30, 2022
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 111,873	$ 111,873
Liability assumed in acquisition of real estate	13,100	13,073
Measurement period adjustment from a prior period acquisition		242
Accretion		2,110
Changes in estimates recorded to consolidated statement of operations		856
Expenditures		(4,280)
Currency translation and other		(218)
Ending balance		123,656
Remedial Liabilities for Landfill Sites
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	1,780	1,780
Liability assumed in acquisition of real estate		0
Measurement period adjustment from a prior period acquisition		0
Accretion		42
Changes in estimates recorded to consolidated statement of operations		1
Expenditures		(25)
Currency translation and other		0
Ending balance		1,798
Remedial Liabilities for Inactive Sites
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	59,787	59,787
Liability assumed in acquisition of real estate		0
Measurement period adjustment from a prior period acquisition		0
Accretion		1,264
Changes in estimates recorded to consolidated statement of operations		731
Expenditures		(1,676)
Currency translation and other		(9)
Ending balance		60,097
Remedial Liabilities (Including Superfund) for Non-Landfill Operations
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 50,306	50,306
Liability assumed in acquisition of real estate		13,073
Measurement period adjustment from a prior period acquisition		242
Accretion		804
Changes in estimates recorded to consolidated statement of operations		124
Expenditures		(2,579)
Currency translation and other		(209)
Ending balance		$ 61,761