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Financial Instruments - Additional Information (Detail)
$ in Thousands, $ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2022
CAD ($)
Mar. 31, 2022
USD ($)
Mar. 31, 2021
CAD ($)
Dec. 31, 2021
CAD ($)
Dec. 31, 2020
CAD ($)
Dec. 31, 2019
CAD ($)
Dec. 31, 2018
CAD ($)
Disclosure of detailed information about financial instruments [line items]              
Financial assets at fair value $ 300     $ 300      
Cumulative estimated gain losses on termination of forward contracts       100      
Gain losses on cash flow hedges net of tax $ (145) $ 43.0 $ 72 247 $ 545 $ (815)  
Accumulated fair value hedge adjustment on hedged item included in carrying amount liabilities       $ 200 500 900  
Percentage change in rate of interest percentage 1.00% 1.00%   1.00%      
Estimated increase decrease in annual interest expense $ 800     $ 700      
Cash and cash equivalents 133,214   $ 110,642 172,758 95,676 $ 96,255 $ 326,864
Financial liabilities, at fair value 400     180 371    
Bank And Asset Based Facilities [Member]              
Disclosure of detailed information about financial instruments [line items]              
Loans received 78,600     67,900      
Debt instrument unused borrowing capacity $ 671,900     $ 681,500      
Bank Facility Asset Facility And Notes [Member]              
Disclosure of detailed information about financial instruments [line items]              
Net debt to earnings before interest tax depreciation and amortization 43 43   1      
Maximum net debt to earnings before interest tax depreciation and amortization 3 3   3      
Actual interest coverage ratio 9 9   8      
Minimum interest coverage ratio 3 3   3      
Investment In Preferred Shares [Member]              
Disclosure of detailed information about financial instruments [line items]              
Financial assets at fair value       $ 27,500 25,700    
Investment In Preferred Shares [Member] | Long Term Receivables [Member]              
Disclosure of detailed information about financial instruments [line items]              
Financial assets at amortized costs       $ 24,200 $ 22,000    
Bottom of range [member]              
Disclosure of detailed information about financial instruments [line items]              
Percentage of entities revenue       10.00% 10.00%    
Percentage of accounts receivable and contract assets       10.00% 10.00%    
Bottom of range [member] | Investment In Preferred Shares [Member] | Long Term Receivables [Member]              
Disclosure of detailed information about financial instruments [line items]              
Financial assets at amortized costs $ 24,700     $ 24,200      
Top of range [member] | Investment In Preferred Shares [Member]              
Disclosure of detailed information about financial instruments [line items]              
Financial assets at fair value 26,500     27,500      
Senior Unsecured Notes [Member]              
Disclosure of detailed information about financial instruments [line items]              
Financial liabilities at amortized costs       280,300      
Financial liabilities, at fair value       280,295 $ 284,605    
Senior Unsecured Notes [Member] | Bottom of range [member]              
Disclosure of detailed information about financial instruments [line items]              
Financial liabilities at amortized costs 263,700     266,900      
Senior Unsecured Notes [Member] | Top of range [member]              
Disclosure of detailed information about financial instruments [line items]              
Financial liabilities at amortized costs $ 252,100     $ 280,300      
Senior Unsecured Notes [Member] | Discount rate, measurement input [member] | Weighted average [member]              
Disclosure of detailed information about financial instruments [line items]              
Weighted average discount rate 5.1     3.5