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Other long-term assets (Details) - CAD ($) $ in Thousands	Sep. 30, 2025	Sep. 30, 2024
Subclassifications of assets, liabilities and equities [abstract]
Long-term prepaid services	$ 29,169	$ 24,061
Insurance contracts held to fund defined benefit pension and life assurance arrangements - reimbursement rights	20,139	19,675
Retirement benefits assets	55,156	22,446
Deposits	18,609	13,503
Deferred financing fees	2,434	2,425
Other	17,813	28,330
Other long-term assets	$ 143,320	$ 110,440

X

- Definition

Deferred Finance Costs, Net 1

+ References

No definition available.

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- Definition

Long-Term Prepaid Services

+ References

No definition available.

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X

- Definition

Miscellaneous Other Non-Current Non-Financial Assets

+ References

No definition available.

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X

- Definition

The amount of assets held by retirement benefit plans. [Refer: Defined benefit plans [domain]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The amount of long-term deposits held by the entity.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
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- Definition

The amount of non-current non-financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Note Expiry date 2027-01-01
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- Definition

The amount of the entity's rights to the reimbursement by another party of some or all of the expenditure required to settle a defined benefit obligation recognised as a separate asset and measured at fair value. [Refer: At fair value [member]]

+ References

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