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DISCONTINUED OPERATIONS - Net (loss) earnings from discontinued operations (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Disclosure of non-current assets held for sale and discontinued operations [Line Items] |  |
Revenues | $ 987.1 | $ 958.8
Cost of sales | (863.0) | (810.9)
General and administrative expenses | (48.6) | (52.0)
Exploration expenses | (26.3) | (28.4)
Impairment charge | 0.0 | (17.1)
Other expenses | (49.5) | (9.1)
Finance costs | (21.0) | (8.6)
Foreign exchange gain (loss) | (12.8) | (5.0)
Interest income, derivatives and other investment gains | 53.2 | 14.0
Earnings before income taxes | 128.2 | 41.7
Net earnings (loss) from discontinued operations | 6.3 | (16.4)
Discontinued operations |  |
Disclosure of non-current assets held for sale and discontinued operations [Line Items] |  |
Revenues | 47.2 | 405.2
Cost of sales | (23.8) | (330.7)
General and administrative expenses | 0.0 | (3.5)
Exploration expenses | (0.1) | (1.2)
Impairment charge | 0.0 | (110.1)
Other expenses | (1.3) | (2.5)
Finance costs | (0.1) | (1.2)
Foreign exchange gain (loss) | (0.2) | 0.4
Interest income, derivatives and other investment gains | 0.0 | 6.6
Earnings before income taxes | 21.7 | (37.0)
Income tax | (8.0) | 20.6
Net earnings (loss) from discontinued operations before disposal | 13.7 | (16.4)
Loss on sale of Rosebel | (7.4) | 0.0
Net earnings (loss) from discontinued operations | $ 6.3 | $ (16.4)

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- Definition The amount of all expenses directly or indirectly attributed to the goods or services sold. Attributed expenses include, but are not limited to, costs previously included in the measurement of inventory that has now been sold, such as depreciation and maintenance of factory buildings and equipment used in the production process, unallocated production overheads, and abnormal amounts of production costs of inventories. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 99 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_99&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 103 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_103&doctype=Standard -URIDate 2023-03-23 + Details
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