Reclamation (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
Mar. 31, 2025 |
Dec. 31, 2024 |
Mar. 31, 2024 |
Dec. 31, 2023 |
|
| Asset Retirement Obligation Disclosure [Abstract] | ||||||||
| Asset Retirement Obligation | $ 275,032 | $ 219,917 | $ 275,032 | $ 219,917 | $ 272,512 | $ 260,492 | $ 216,989 | $ 214,013 |
| Asset Retirement Obligation, Accretion Expense, Excluding Held for Sale Disposal Group. | 4,900 | 4,154 | 9,632 | 8,230 | ||||
| Asset Retirement Obligation, Revision of Estimate | 0 | 0 | 8,644 | 0 | ||||
| Asset Retirement Obligation, Liabilities Settled | $ (2,380) | $ (1,226) | $ (3,736) | $ (2,326) | ||||