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 |
|
| Lessee, Lease, Description [Line Items] | ||||
| Operating lease payments | $ 24.2 | $ 20.3 | $ 68.9 | $ 60.3 |
| Operating lease liability non cash | $ 93.6 | $ 51.2 | ||
| Minimum | ||||
| Lessee, Lease, Description [Line Items] | ||||
| Initial term of lease | 5 years | 5 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 | ||