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Reclamation (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Mar. 31, 2023
Dec. 31, 2022
Mar. 31, 2022
Dec. 31, 2021
Asset Retirement Obligation Disclosure [Abstract]                
Asset Retirement Obligation $ 207,960 $ 186,402 $ 207,960 $ 186,402 $ 205,380 $ 202,431 $ 184,322 $ 181,888
Asset Retirement Obligation, Accretion Expense, Excluding Held for Sale Disposal Group. 4,073 3,529 8,066 6,992        
Asset Retirement Obligation, Liabilities Settled $ (1,493) $ (1,449) $ (2,537) $ (2,478)