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Summary of Operating and General and Administrative Expenses (Detail) - CAD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Expenses by nature [abstract]    
Wages, salaries and benefits $ 735,566 $ 482,695
Wage subsidies   (24,108)
Purchased materials, supplies and services 436,356 278,743
Share-based compensation 133,667 56,745
Operating and general and administrative expenses 1,305,589 794,075
Allocated to:    
Operating expense 1,124,601 698,144
General and administrative 180,988 95,931
Operating and general and administrative expenses $ 1,305,589 $ 794,075