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Key management - Disclosure of compensation, key management (Details) - Key management personnel [Member] - CAD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure Of Information About Key Management [Line Items]    
Salaries and short-term employee benefits $ 4,491 $ 4,374
Termination benefits 5,548 0
Share-based compensation 6,358 5,475
Cost recoveries from associates 0 (538)
Employee benefits expense $ 16,397 $ 9,311