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OTHER EXPENSES (Tables) | 12 Months Ended
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Dec. 31, 2023
Analysis of income and expense [abstract] |
Disclosure of other expenses (income) |
|  |  | Years ended December 31,
| Notes |  |  | 2023 | 2022
Changes in asset retirement obligations at closed mines | 15(a) |  |  | $ | 9.7 |  | $ | 1.6 |
Write-down of assets |  |  |  | 1.3 |  | 0.6 |
Forfeiture of carbon fines | 15(b) |  |  | 13.5 |  | — |
Settlement of carbon fines | 15(b) |  |  | 15.0 |  | — |
Other |  |  |  | 10.0 |  | 6.9 |
|  |  |  | $ | 49.5 |  | $ | 9.1 |

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