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PROPERTY, PLANT AND EQUIPMENT - Narrative (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Sep. 23, 2020
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Quoted borrowing costs capitalised | $ 113.5 | $ 49.0 |
Borrowing costs capitalized, weighted average interest rate | 7.38% | 5.82% |
5.75% senior notes | Fixed interest rate |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Interest rate | 5.75% | 5.75% | 5.75%
Mining properties |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Mining properties, stripping costs capitalized | $ 199.2 | $ 196.6 |
Mining properties, stripping costs capitalized during period | 87.9 | 109.7 |
Mining properties, stripping costs, depreciation expense | $ 85.3 | $ 105.0 |

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