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Long-term financial assets (Details) - CAD ($) | Sep. 30, 2025 | Sep. 30, 2024
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Subclassifications of assets, liabilities and equities [abstract] |  |
Deferred compensation plan assets | $ 125,388,000 | $ 112,270,000
Long-term investments | 27,687,000 | 24,209,000
Long-term receivables | 8,509,000 | 10,114,000
Long-term derivative financial instruments | 854,000 | 2,644,000
Long-term financial assets | $ 162,438,000 | $ 149,237,000

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- Definition Non-Current Investments at Fair Value Through Other Comprehensive Income + References No definition available. + Details
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