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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, 2022 | Dec. 31, 2021
Results of discontinued operations: |  |
Net loss from discontinued operations | $ (268,475) | $ (133,302)
Osisko Development, discontinued operations [Member] |  |
Results from discontinued operations: |  |
Net loss on deconsolidation | (140,910) | 0
Results of discontinued operations: |  |
Revenues of discontinued operations | 44,820 | 7,275
Impairment of assets | (81,000) | (121,600)
Other expenses, net | (89,895) | (31,948)
Net loss before income taxes | (126,075) | (146,273)
Deferred income tax (expense) recovery | (1,490) | 12,971
Net loss | (127,565) | (133,302)
Net loss from discontinued operations | $ (268,475) | $ (133,302)
Net loss per share from discontinued operations |  |
Basic and diluted | $ (1.5) | $ (0.8)

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