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REMEDIAL LIABILITIES (Tables)
3 Months Ended
Mar. 31, 2023
Environmental Remediation Obligations [Abstract]  
Schedule of Changes to Remedial Liabilities
The changes to remedial liabilities from January 1, 2023 through March 31, 2023 were as follows (in thousands):
Remedial
Liabilities for
Landfill Sites
Remedial
Liabilities for
Inactive Sites
Remedial
Liabilities
(Including
Superfund) for
Non-Landfill
Operations
Total
Balance at January 1, 2023$1,824 $59,749 $54,717 $116,290 
Accretion22 645 398 1,065 
Changes in estimates recorded to consolidated statement of operations374 281 659 
Expenditures(13)(861)(2,815)(3,689)
Currency translation and other— 15 16 
Balance at March 31, 2023$1,837 $59,908 $52,596 $114,341