Other long-term liabilities (Details) - CAD ($)	Sep. 30, 2024	Sep. 30, 2023
Subclassifications of assets, liabilities and equities [abstract]
Deferred revenue	$ 137,450,000	$ 112,370,000
Deferred compensation plan liabilities	124,447,000	97,745,000
Other	39,185,000	33,477,000
Other long-term liabilities	$ 301,082,000	$ 243,592,000

The amount of liabilities representing income that has been received (or the amount is due) but is not yet earned, including contract liabilities. [Refer: Contract liabilities]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 55
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_55&doctype=Standard
-URIDate 2024-03-27

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 1
-IssueDate 2024-01-01
-Paragraph 78
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2024-en-r&anchor=para_78&doctype=Standard
-URIDate 2024-03-27

Name:	ifrs-full_DeferredIncomeIncludingContractLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant