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Other investments - Disclosure of detailed information about other investments (Details) - CAD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021
Other Investments [Line Items] |  |
Total | $ 73,504 | $ 169,010
Fair value through profit or loss (warrants and convertible instruments) [Member] |  |
Other Investments [Line Items] |  |
Balance - January 1 | 47,981 | 25,063
Acquisitions | 4,438 | 17,754
Exercise of warrants | (80) | (1,122)
Change in fair value | (17,236) | 6,286
Acquisition of Tintic by Osisko Development | (10,827) | 0
Foreign exchange impact revaluation | 50 | 0
Investments held by Osisko Development and deconsolidated on September 30, 2022 | (109) | 0
Balance - December 31 | 24,217 | 47,981
Fair value through other comprehensive (loss) income (common shares) [Member] |  |
Other Investments [Line Items] |  |
Balance - January 1 | 94,231 | 115,590
Acquisitions | 5,260 | 18,668
Exercise of warrants | 0 | 600
Transfer from associates | 15,343 | 0
Change in fair value | (43,486) | 7,303
Disposals | (21,634) | (47,930)
Investments held by Osisko Development and deconsolidated on September 30, 2022 | (31,377) | 0
Balance - December 31 | 18,337 | 94,231
Amortized cost (notes) [Member] |  |
Other Investments [Line Items] |  |
Balance - January 1 | 26,798 | 16,861
Acquisitions | 5,175 | 12,849
Repayments | (2,960) | (3,007)
Foreign exchange impact revaluation | 1,937 | 95
Balance - December 31 | $ 30,950 | $ 26,798

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