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INCOME AND MINING TAXES - Income (Loss) Before Income Taxes (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Income Tax Contingency [Line Items] |  |  |
Income (loss) before income and mining taxes | $ (318,734) | $ (202,408) | $ 240,835
Canada |  |  |
Income Tax Contingency [Line Items] |  |  |
Income (loss) before income and mining taxes | 56,062 | (76,407) | (21,831)
United States |  |  |
Income Tax Contingency [Line Items] |  |  |
Income (loss) before income and mining taxes | 105,989 | 181,926 | 75,762
Türkiye |  |  |
Income Tax Contingency [Line Items] |  |  |
Income (loss) before income and mining taxes | (548,077) | (319,775) | 108,373
Argentina |  |  |
Income Tax Contingency [Line Items] |  |  |
Income (loss) before income and mining taxes | 67,386 | 13,733 | 2,662
Other Foreign |  |  |
Income Tax Contingency [Line Items] |  |  |
Income (loss) before income and mining taxes | $ (94) | $ (1,885) | $ 75,869

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