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Consolidated Balance Sheets (Parenthetical) - CAD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Statement of Financial Position [Abstract] |  |
Property, plant and equipment, accumulated depreciation | $ 387,358 | $ 339,505
Common shares, issued (in shares) | 27,827,282 | 30,022,928
Common shares, outstanding (in shares) | 27,827,282 | 30,022,928
Treasury shares (in shares) | 1,406,461 | 1,564,813

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