INCOME TAXES - Schedule of Detailed Information about Deductible Temporary Differences Unused Tax Losses and Unused Tax Credits For Which Deferred Income Tax Assets Not Recognized (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure of Detailed Information about Non Capital Loss Applied to Reduce Future Taxable Income [Line Items] | ||
| Limited interest expense deduction carryforward | $ 174,037 | $ 87,911 |
| Derivatives | 149,911 | 20,024 |
| Reclamation and closure cost provisions | 135,302 | 93,904 |
| Mineral properties, plant and equipment | 125,075 | 155,187 |
| Investments and loans and borrowings | 37,669 | 152,838 |
| Accrued receivables and liabilities | 22,091 | 63,073 |
| Other | 8,816 | 31,406 |
| Non-capital losses | 344,335 | 463,008 |
| Capital losses | 16,020 | 84,555 |
| Total unrecognized deferred tax assets | $ 1,013,256 | 1,151,906 |
| Brazil | ||
| Disclosure of Detailed Information about Non Capital Loss Applied to Reduce Future Taxable Income [Line Items] | ||
| Total unrecognized deferred tax assets | $ 284,300 | |