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SEGMENTED INFORMATION - Statement of Earnings (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Disclosure of operating segments [line items] |  |
Revenues | $ 987.1 | $ 958.8
Cost of sales | 647.0 | 570.4
Depreciation expense | 216.0 | 240.5
General and administrative | 48.6 | 52.0
Exploration | 26.3 | 28.4
Impairment | 0.0 | 17.1
Other | 49.5 | 9.1
Earnings (loss) from operations | (0.3) | 41.3
Net capital expenditures | 934.2 | 766.0
Discontinued operations |  |
Disclosure of operating segments [line items] |  |
Revenues | 47.2 | 405.2
Cost of sales | 23.8 | 286.8
Depreciation expense | 0.0 | 43.9
General and administrative | 0.0 | 3.5
Exploration | 0.1 | 1.2
Impairment | 0.0 | 110.1
Other | 1.3 | 2.5
Earnings (loss) from operations | 22.0 | (42.8)
Net capital expenditures | 10.8 | 116.7
Aggregate continuing and discontinued operations |  |
Disclosure of operating segments [line items] |  |
Revenues | 1,034.3 | 1,364.0
Cost of sales | 670.8 | 857.2
Depreciation expense | 216.0 | 284.4
General and administrative | 48.6 | 55.5
Exploration | 26.4 | 29.6
Impairment | 0.0 | 127.2
Other | 50.8 | 11.6
Earnings (loss) from operations | 21.7 | (1.5)
Net capital expenditures | 945.0 | 882.7
Operating gold mines |  |
Disclosure of operating segments [line items] |  |
Revenues | 986.2 | 1,003.9
Cost of sales | 647.0 | 570.4
Depreciation expense | 214.9 | 240.1
General and administrative | 0.0 | 0.0
Exploration | 0.0 | 0.2
Impairment | 0.0 | 11.5
Other | 42.0 | 3.6
Earnings (loss) from operations | 82.3 | 178.1
Net capital expenditures | 202.2 | 200.0
Operating gold mines | Burkina Faso |  |
Disclosure of operating segments [line items] |  |
Revenues | 809.6 | 883.3
Cost of sales | 502.4 | 431.2
Depreciation expense | 183.6 | 220.2
General and administrative | 0.0 | 0.0
Exploration | 0.0 | 0.2
Impairment | 0.0 | 11.5
Other | 31.6 | 0.7
Earnings (loss) from operations | 92.0 | 219.5
Net capital expenditures | 136.6 | 163.2
Operating gold mines | Canada |  |
Disclosure of operating segments [line items] |  |
Revenues | 176.6 | 120.6
Cost of sales | 144.6 | 139.2
Depreciation expense | 31.3 | 19.9
General and administrative | 0.0 | 0.0
Exploration | 0.0 | 0.0
Impairment | 0.0 | 0.0
Other | 10.4 | 2.9
Earnings (loss) from operations | (9.7) | (41.4)
Net capital expenditures | 65.6 | 36.8
Côté Gold Project |  |
Disclosure of operating segments [line items] |  |
Revenues | 0.0 | 0.0
Cost of sales | 0.0 | 0.0
Depreciation expense | 0.0 | 0.0
General and administrative | 0.4 | 1.3
Exploration | 4.2 | 3.0
Impairment | 0.0 | 0.0
Other | 1.0 | 0.0
Earnings (loss) from operations | (5.6) | (4.3)
Net capital expenditures | 731.6 | 551.8
Exploration and evaluation and development |  |
Disclosure of operating segments [line items] |  |
Revenues | 0.0 | 0.0
Cost of sales | 0.0 | 0.0
Depreciation expense | 0.0 | 0.0
General and administrative | 0.0 | 0.2
Exploration | 22.1 | 25.2
Impairment | 0.0 | 0.0
Other | 0.2 | 3.3
Earnings (loss) from operations | (22.3) | (28.7)
Net capital expenditures | 0.0 | 13.1
Corporate |  |
Disclosure of operating segments [line items] |  |
Revenues | 0.9 | (45.1)
Cost of sales | 0.0 | 0.0
Depreciation expense | 1.1 | 0.4
General and administrative | 48.2 | 50.5
Exploration | 0.0 | 0.0
Impairment | 0.0 | 5.6
Other | 6.3 | 2.2
Earnings (loss) from operations | (54.7) | (103.8)
Net capital expenditures | $ 0.4 | $ 1.1

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