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Income Tax - Summary of Reconciliation of Tax Expense (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
Reconciliation of accounting profit multiplied by applicable tax rates [abstract]          
Earnings before income taxes $ 3,252 $ 1,592 $ 38,102 $ 95,559 $ 215,324
Canadian statutory rate 23.80% 23.60% 23.80% 24.40% 26.50%
Expected income tax provision $ 775 $ 376 $ 9,068 $ 23,316 $ 57,061
Exchange rate effects on tax basis (1,672) (1,485) (2,269) (4,007) 2,125
Earnings taxed in foreign jurisdictions 405 (604) 2,313 (14,505) (1,129)
Revaluation of Canadian deferred tax assets due to change in statutory rate     (660) 597 5,040
Withholding tax on dividends received from foreign subsidiaries     2,763    
Amounts not deductible (taxable) for tax purposes 164 147 811 2,426 723
Impact of accounting for associates and joint ventures (68) 97 (160) (530) (575)
Change in recognized deferred tax assets 3,924 0 44,704    
Other 93 58 (13) 5 (49)
Income tax expense from continuing operations $ 3,621 $ (1,411) $ 56,557 $ 7,302 $ 63,196