v3.26.3
ASSET RETIREMENT OBLIGATION (Schedule of Changes to Asset Retirement Obligation) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Asset Retirement Obligation Disclosure [Abstract]          
Asset retirement obligation, at beginning of period $ 39,930 $ 33,891 $ 38,452 $ 32,592  
Liabilities settled (94) 0 (169) 0  
Accretion of discount 776 649 2,329 1,948  
Total asset retirement obligation, at end of period 40,612 34,540 40,612 34,540 $ 38,452
Less current portion of asset retirement obligation 0 (595) 0 (595)  
Long-term portion of asset retirement obligation $ 40,612 $ 33,945 $ 40,612 $ 33,945 $ 38,452