ENVIRONMENTAL NATURAL RESOURCE DAMAGE LIABILITIES - Schedule of Environmental NRD Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Accrual for Environmental Loss Contingencies [Roll Forward]
Beginning balance	$ 11,641
Expenditures charged to liabilities	(941)
Increase in liabilities	105
Ending balance	10,805
Less: Current portion	(695)	$ (1,026)
Non-current portion at December 31, 2021	$ 10,110	$ 10,615

Accrual for Environmental Loss Contingencies Increase (Decrease) to Liability

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- Definition

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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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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No definition available.

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

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