ASSET RETIREMENT AND ENVIRONMENTAL RECLAMATION OBLIGATIONS (Tables)

3 Months Ended

Mar. 31, 2024

Asset Retirement Obligation And Accrual For Environmental Loss Contingencies Disclosure [Abstract]

Schedule of Asset Retirement Obligations and Environmental Reclamation Obligations

Aggregate carrying amounts of asset retirement obligations and environmental reclamation obligations are as follows (dollars in thousands):

	Three Months Ended March 31, 2024
Obligations at beginning of period	$	217,201
Liabilities incurred	3,456
Liabilities settled	(752)
Accretion expense	1,790
Total obligations at end of period	$	221,695
Less current obligations at end of period	(19,783)
Long-term obligations at end of period	$	201,912