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Deconsolidation of Osisko Development and discontinued operations - Disclosure of results of operations presented as discontinued operations on the consolidated statements of loss (Details) - CAD ($) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022
Results of discontinued operations: |  |
Net loss from discontinued operations | $ 0 | $ (268,475)
Osisko Development, discontinued operations [Member] |  |
Results from discontinued operations: |  |
Net loss on deconsolidation |  | (140,910)
Results of discontinued operations: |  |
Revenues |  | 44,820
Impairment of mining assets |  | (81,000)
Other expenses, net |  | (89,895)
Net loss before income taxes |  | (126,075)
Deferred income tax (expense) recovery |  | (1,490)
Net loss |  | (127,565)
Net loss from discontinued operations |  | $ (268,475)
Net loss per share from discontinued operations |  |
Basic |  | $ (1.5)
Diluted |  | $ (1.5)

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