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PROVISIONS - Future Disbursements (Details) - Dec. 31, 2024 $ in Millions, $ in Millions | CAD ($) | USD ($)
--- | --- | ---
Disclosure of other provisions [line items] |  |
Undiscounted amounts required | $ 393.4 | $ 100.5
Westwood Mine and Other Canadian Sites |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required | 393.4 |
Essakane Mine |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required |  | 100.5
2025 | Westwood Mine and Other Canadian Sites |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required | 22.7 |
2025 | Essakane Mine |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required |  | 1.4
2026 | Westwood Mine and Other Canadian Sites |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required | 24.0 |
2026 | Essakane Mine |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required |  | 2.6
2027 | Westwood Mine and Other Canadian Sites |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required | 12.3 |
2027 | Essakane Mine |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required |  | 2.8
2028 | Westwood Mine and Other Canadian Sites |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required | 5.9 |
2028 | Essakane Mine |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required |  | 4.2
2029 | Westwood Mine and Other Canadian Sites |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required | 2.6 |
2029 | Essakane Mine |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required |  | 6.9
2030 onwards | Westwood Mine and Other Canadian Sites |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required | $ 325.9 |
2030 onwards | Essakane Mine |  |
Disclosure of other provisions [line items] |  |
Undiscounted amounts required |  | $ 82.6

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