Leases - Additional Information (Details) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Jun. 30, 2025 |
Jun. 30, 2024 |
Jun. 30, 2025 |
Jun. 30, 2024 |
|
| Lessee, Lease, Description [Line Items] | ||||
| Operating lease payments | $ 20.3 | $ 15.9 | $ 60.3 | $ 60.5 |
| Operating lease liability non cash | $ 51.2 | $ 46.1 | ||
| Minimum | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Initial term of lease | 3 years | 3 years | ||
| Finance, term of lease | 2 years | 2 years | ||
| Maximum | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Initial term of lease | 10 years | 10 years | ||
| Finance, term of lease | 5 years | 5 years | ||