XML 146 R107.htm IDEA: XBRL DOCUMENT
v3.25.3

Share-based payments - Performance share units and restricted share units (Details) | 12 Months Ended
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Sep. 30, 2025 shares
PSUs |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting period for stock options | 4 years
RSUs |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Vesting period for stock options | 4 years
Class A subordinate voting shares | PSUs |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of shares per instrument granted which participants are entitled to (in shares) | 1
Class A subordinate voting shares | RSUs |
Disclosure of terms and conditions of share-based payment arrangement [line items] |
Number of shares per instrument granted which participants are entitled to (in shares) | 1

X
- Definition Number Of Shares To Be Received For Each Instrument Granted In Share-Based Payment Arrangement + References No definition available. + Details
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- Definition Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Period 2 + References No definition available. + Details
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Period Type: | duration

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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
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- Details
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- Details
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Namespace Prefix: |
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |