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INCOME AND MINING TAXES - Narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income Tax Disclosure [Abstract] |  |  |  |
Statutory tax rate (as a percent) | 27.00% | 27.00% | 27.00% |
Valuation allowance, deferred tax asset, increase, amount | $ 151,300,000 |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Unrecognized tax benefits | 0 | $ 0 | $ 8,574,000 | $ 0
Unrecognized tax benefits, income tax penalties and interest accrued | 0 | 0 |  |
Unrecognized tax benefits, release of income tax penalties and interest expense |  | 7,200,000 |  |
Unrecognized tax benefits, cash settlement | $ 0 | $ 1,356,000 | $ 626,000 |
Çöpler Incident |  |  |  |
Income Tax Contingency [Line Items] |  |  |  |
Operating loss carryforwards, expiration period (in years) | 5 years |  |  |

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