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v3.25.3

Related Party Transactions (Details) - CAD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Related Party Transactions [Abstract] |  |  |  |
Contributions made to defined benefit pension plans | $ 0.7 | $ 3.0 | $ 1.7 | $ 4.3
Contribution amount | $ 0.6 | $ 0.4 | $ 1.7 | $ 1.2

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