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Statements of Loss (Detail) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Disclosure of subsidiaries [Line Items]    
Revenue $ 1,617,194 $ 986,847
Expenses 1,124,601 698,144
Earnings before income taxes, loss on redemption and repurchase of unsecured senior notes, loss (gain) on investments and other assets, finance charges, foreign exchange, gain on asset disposals, and depreciation and amortization 311,605 192,772
Net loss (34,293) (177,386)
Parent And Guarantor Subsidiaries [Member]    
Disclosure of subsidiaries [Line Items]    
Revenue 1,474,824 844,619
Expenses 1,196,168 690,149
Earnings before income taxes, loss on redemption and repurchase of unsecured senior notes, loss (gain) on investments and other assets, finance charges, foreign exchange, gain on asset disposals, and depreciation and amortization 278,656 154,470
Net loss $ (25,780) $ (171,030)