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COMMITMENTS AND CONTINGENCIES - Environmental Remediation Liability (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Accrual for Environmental Loss Contingencies [Roll Forward]    
Beginning balance $ 5,889 $ 6,335
Obligations incurred 24 26
Obligations settled (32) (18)
Ending balance 5,881 6,343
Less: current portion 1,631 1,131
Long-term portion $ 4,250 $ 5,212