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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

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