COMMITMENTS AND CONTINGENCIES - Environmental Remediation Liability (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 5,887	$ 5,200
Accretion expense	26	28
Obligations settled	(49)	0
Ending balance	5,864	5,228
Accrual for environmental loss contingencies	5,864	5,228
Less: current portion	304	376
Long-term portion	$ 5,560	$ 4,852

Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Amount of expense for newly incurred environmental loss contingencies. Includes, but is not limited to, remediation expense and interest accretion.

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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