Share-Based Compensation - Share-Based Compensation Expense (Details) - USD ($) $ in Thousands |
3 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Employee stock purchase plan | ||
| Compensation expense recorded upon vesting of awards | $ 15,135 | $ 14,725 |
| Equity classified awards | ||
| Employee stock purchase plan | ||
| Compensation expense recorded upon vesting of awards | 14,608 | 13,674 |
| Liability classified awards | ||
| Employee stock purchase plan | ||
| Compensation expense recorded upon vesting of awards | 274 | 729 |
| Employee stock purchase plan | ||
| Employee stock purchase plan | ||
| Compensation expense recorded upon vesting of awards | $ 253 | $ 322 |