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Other investments - Disclosure of detailed information about other investments (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 CAD ($) | Dec. 31, 2020 CAD ($)
Other Investments [Line Items] |  |
Total | $ 169,010 | $ 157,514
Fair value through profit or loss (warrants and convertible instruments) [Member] |  |
Other Investments [Line Items] |  |
Balance - January 1 | 25,063 | 1,700
Acquisitions | 17,754 | 4,782
Exercise of warrants | (1,122) | (347)
Change in fair value | 6,286 | 2,387
Amendment of a note receivable | 0 | 16,541
Balance - December 31 | 47,981 | 25,063
Fair value through other comprehensive (loss) income (common shares) [Member] |  |
Other Investments [Line Items] |  |
Balance - January 1 | 115,590 | 57,409
Acquisitions | 18,668 | 18,602
Exercise of warrants | 600 | 452
Transfer from associates | 0 | 8,998
Change in fair value | 7,303 | 40,993
Disposals | (47,930) | (10,864)
Balance - December 31 | 94,231 | 115,590
Amortized cost (notes) [Member] |  |
Other Investments [Line Items] |  |
Balance - January 1 | 16,861 | 8,777
Acquisitions | 14,961 | 7,998
Repayment | (3,007) | 0
Transfer from short-term investments | 0 | 8,467
Impairments | (2,112) | (7,998)
Foreign exchange impact revaluation | 95 | (383)
Balance - December 31 | $ 26,798 | $ 16,861

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