Derivative Financial Instruments - Schedule of Notional Amounts of Outstanding Forward Contracts and Options (Details) - Not Designated as Hedging Instrument - Foreign Exchange Forward Contract and Options - USD ($) $ in Thousands |
Jun. 30, 2026 |
Sep. 30, 2025 |
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|---|---|---|---|---|---|---|
| Derivative [Line Items] | ||||||
| Notional amount | $ 941,440 | $ 1,518,086 | ||||
| Euro / U.S. Dollar | ||||||
| Derivative [Line Items] | ||||||
| Notional amount | [1] | 762,849 | 1,202,830 | |||
| British Pound / U.S. Dollar | ||||||
| Derivative [Line Items] | ||||||
| Notional amount | 4,727 | 22,974 | ||||
| Israeli Shekel / U.S. Dollar | ||||||
| Derivative [Line Items] | ||||||
| Notional amount | 19,456 | 20,094 | ||||
| Indian Rupee / U.S. Dollar | ||||||
| Derivative [Line Items] | ||||||
| Notional amount | 74,490 | 53,465 | ||||
| Japanese Yen / U.S. Dollar | ||||||
| Derivative [Line Items] | ||||||
| Notional amount | [2] | 12,971 | 131,284 | |||
| Swiss Franc / U.S. Dollar | ||||||
| Derivative [Line Items] | ||||||
| Notional amount | 14,835 | 8,960 | ||||
| Swedish Krona / U.S. Dollar | ||||||
| Derivative [Line Items] | ||||||
| Notional amount | 18,770 | 21,568 | ||||
| New Taiwan Dollar / U.S. Dollar | ||||||
| Derivative [Line Items] | ||||||
| Notional amount | 14,404 | 23,098 | ||||
| All other | ||||||
| Derivative [Line Items] | ||||||
| Notional amount | $ 18,938 | $ 33,813 | ||||
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