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Share Capital Authorized - Summary of Issues and Outstanding (Detail) - CAD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Disclosure of classes of share capital [line items] |  |  |  |  |
Exercise of stock options | $ 938 | $ 893 | $ 1,783 | $ 1,725 | $ 10,187
Ordinary shares [member] |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |
Balance, January 1 | $ 375,524 | $ 375,524 | $ 375,524 | $ 375,524 |
Balance, January 1 (Shares) | 89,678,845 | 89,678,845 | 89,678,845 | 89,678,845 |
Exercise of stock options |  |  | $ 0 | $ 0 |
Exercise of stock options (Shares) |  |  | 0 | 0 |
Ending balance |  |  | $ 375,524 | $ 375,524 | $ 375,524
Ending balance (Shares) |  |  | 89,678,845 | 89,678,845 | 89,678,845

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