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Other investments - Disclosure of detailed information about other investments (Details)
$ in Thousands
 12 Months Ended
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