Share-based payments - Disclosure of share-based payment expense (Details) - CAD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Disclosure of terms and conditions of share-based payment arrangement [line items] | ||
| Share-based payment expense | $ 264,403 | $ 254,213 |
| PSUs | ||
| Disclosure of terms and conditions of share-based payment arrangement [line items] | ||
| Share-based payment expense | 68,636 | 67,054 |
| Stock options | ||
| Disclosure of terms and conditions of share-based payment arrangement [line items] | ||
| Share-based payment expense | 0 | 786 |
| Share purchase plan | ||
| Disclosure of terms and conditions of share-based payment arrangement [line items] | ||
| Share-based payment expense | 196,510 | 181,989 |
| DSUs | ||
| Disclosure of terms and conditions of share-based payment arrangement [line items] | ||
| Share-based payment expense | $ (743) | $ 4,384 |