v3.26.1
Reclamation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Asset Retirement Obligation Disclosure [Abstract]        
Asset Retirement Obligation $ 420,051 $ 272,512 $ 277,511 $ 260,492
Asset Retirement Obligation, Accretion Expense, Excluding Held for Sale Disposal Group. 4,839 4,732    
Asset Retirement Obligation, Revision of Estimate 139,159 8,644    
Asset Retirement Obligation, Liabilities Settled $ (1,458) $ (1,356)