Additional Comprehensive Income (Loss) Detail - Summary of Pre-development, reclamation and other (Details) - USD ($) $ in Thousands |
3 Months Ended | 6 Months Ended | ||||
|---|---|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
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| Other Income and Expenses [Abstract] | ||||||
| Care and maintenance costs | $ 2,423 | $ 2,055 | $ 5,050 | $ 4,416 | ||
| (Gain) loss on sale of assets | 120 | 640 | 303 | 4,176 | ||
| Accretion | 4,900 | 4,154 | 9,632 | 8,230 | ||
| Gain (Loss) from Litigation Settlement | [1] | 0 | (95) | |||
| Royalty settlement | [1] | 0 | 6,750 | |||
| Acquisition related costs | 2,823 | 0 | 11,710 | 0 | ||
| Other Operating Income (Expense), Net | 2,895 | 1,741 | 3,514 | 3,246 | ||
| Pre-development, reclamation, and other | $ 13,161 | $ 8,590 | $ 30,114 | $ 26,818 | ||
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