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Accounts Receivable (Schedule of accounts receivable) (Details) - CAD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Trade And Other Receivables [Abstract]    
Trade receivables $ 167,688 $ 271,015
GST/VAT receivables 5,856 3,919
Other receivables 10,400 1,205
Total $ 183,944 $ 276,139