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SEGMENTED INFORMATION - Balance Sheet (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosure of operating segments [line items] |  |
Total non- current assets | $ 3,784.2 | $ 2,903.8
Assets | 4,537.9 | 4,425.1
Total liabilities | 2,273.8 | 2,218.3
Assets held for sale |  |
Disclosure of operating segments [line items] |  |
Total non- current assets | 0.0 | 0.0
Assets | 34.6 | 785.6
Total liabilities | 5.6 | 276.3
Operating gold mines |  |
Disclosure of operating segments [line items] |  |
Total non- current assets | 1,122.3 | 1,114.8
Assets | 1,489.9 | 1,531.7
Total liabilities | 523.9 | 514.1
Operating gold mines | Burkina Faso |  |
Disclosure of operating segments [line items] |  |
Total non- current assets | 764.4 | 798.0
Assets | 1,100.4 | 1,183.0
Total liabilities | 274.2 | 287.7
Operating gold mines | Canada |  |
Disclosure of operating segments [line items] |  |
Total non- current assets | 357.9 | 316.8
Assets | 389.5 | 348.7
Total liabilities | 249.7 | 226.4
Côté Gold Project |  |
Disclosure of operating segments [line items] |  |
Total non- current assets | 2,521.5 | 1,696.9
Assets | 2,638.0 | 1,821.6
Total liabilities | 243.2 | 209.5
Exploration and evaluation and development |  |
Disclosure of operating segments [line items] |  |
Total non- current assets | 37.7 | 18.8
Assets | 47.4 | 22.0
Total liabilities | 1.3 | 1.8
Corporate |  |
Disclosure of operating segments [line items] |  |
Total non- current assets | 102.7 | 73.3
Assets | 328.0 | 264.2
Total liabilities | $ 1,499.8 | $ 1,216.6

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