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Lease Liabilities - Summary of quantitative information about lease liabilities (Detail) - CAD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure Of Quantitative Information About Lease Liabilities [Line Items]          
Balance, January 1 $ 57,014 $ 61,926 $ 61,926 $ 67,000  
Additions 1,199   9,721 8,065  
Lease interest 695 $ 793 3,029 3,371 $ 2,586
Payments made against lease liabilities (4,208)   (17,244) (16,141)  
Currency translation effects and other (257)   (418) (369)  
Current portion of lease liabilities 13,286   13,906 14,693  
Non-current portion of lease liabilities 41,157   43,108 47,233  
Closing balance $ 54,443   $ 57,014 $ 61,926 $ 67,000