ASSET RETIREMENT AND ENVIRONMENTAL RECLAMATION OBLIGATIONS (Tables)

6 Months Ended

Jun. 30, 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):

	Six Months Ended June 30, 2024
Obligations at beginning of period	$	217,201
Liabilities incurred	3,456
Liabilities settled	(2,450)
Accretion expense	3,597
Total obligations at end of period	$	221,804
Less current obligations at end of period	(18,822)
Long-term obligations at end of period	$	202,982