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Long-term financial assets (Details) - CAD ($)	Sep. 30, 2025	Sep. 30, 2024
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

Deferred Compensation Plan Assets 1

+ References

No definition available.

+ Details

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X

- Definition

Non-Current Investments at Fair Value Through Other Comprehensive Income

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No definition available.

+ Details

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- Definition

Non-Current Receivables at Amortised Cost

+ References

No definition available.

+ Details

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- Definition

The amount of non-current derivative financial assets. [Refer: Derivative financial assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
-Name IAS
-Number 1
-IssueDate 2025-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_55&doctype=Standard
-URIDate 2025-03-27

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X

- Definition

The amount of non-current financial assets. [Refer: Financial assets]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 7
-IssueDate 2025-01-01
-Paragraph 25
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_25&doctype=Standard
-URIDate 2025-03-27

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- References

No definition available.

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