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REMEDIAL LIABILITIES (Tables)
 6 Months Ended
Jun. 30, 2023
Environmental Remediation Obligations [Abstract]  
Schedule of Changes to Remedial Liabilities
The changes to remedial liabilities from January 1, 2023 through June 30, 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 
Accretion44 1,304 808 2,156 
Changes in estimates recorded to consolidated statement of operations6 386 (140)252 
Expenditures(26)(1,966)(4,830)(6,822)
Currency translation and other— 12 288 300 
Balance at June 30, 2023$1,848 $59,485 $50,843 $112,176