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Share Based Compensation Plans - Additional Information (Detail) |  | 12 Months Ended
--- | --- | ---
Jan. 01, 2024 shares | Dec. 31, 2023 CAD ($) shares | Dec. 31, 2022 CAD ($) shares
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Option vesting period |  | 3 years |
Option expiration term |  | 7 years |
Number Of Deferred Share Units Outstanding |  | 1,470 | 1,470
Events After Reporting Period [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Share based compensation number of shares vested | 265,143 |  |
Restricted Share Units (RSUs) [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Shares granted to eligible employees vest term |  | 3 years |
Number of units redeemed |  | 266,744 | 266,876
Performance Share Units (PSUs) [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Shares granted to eligible employees vest term |  | 3 years |
Number of units redeemed |  | 438,612 | 143,659
Deferred Share Units (DSUs) [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Number of units redeemed |  | 18,830 |
Executive Restricted Share Units [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Share unit vesting period |  | 3 years |
Net earnings (loss) | $ |  | $ (3,000,000) | $ 0
U.S. Share Options [Member] |  |  |
Disclosure of terms and conditions of share-based payment arrangement [Line Items] |  |  |
Number of options granted |  | 0 | 0

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