Derivative Financial Instruments - Schedule of Notional Amounts of Outstanding Forward Contracts and Options (Parenthetical) (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Sep. 30, 2025 |
|---|---|---|
| Foreign Exchange Forward | Euro / U.S. Dollar | ||
| Derivative [Line Items] | ||
| Notional amount | $ 687.2 | $ 835.4 |
| Foreign Exchange Forward | Japanese Yen / U.S. Dollar | ||
| Derivative [Line Items] | ||
| Notional amount | 1.4 | 41.9 |
| Options | Euro / U.S. Dollar | ||
| Derivative [Line Items] | ||
| Notional amount | 75.6 | 367.4 |
| Options | Japanese Yen / U.S. Dollar | ||
| Derivative [Line Items] | ||
| Notional amount | $ 11.6 | $ 89.4 |