Leases - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2026 |
Jun. 30, 2025 |
Jun. 30, 2026 |
Jun. 30, 2025 |
|
| Leases [Abstract] | ||||
| Right of use assets obtained in exchange for lease obligation | $ 0.0 | $ 0.0 | $ 0.1 | $ 7.9 |