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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 | Dec. 31, 2024 | Sep. 30, 2024
--- | --- | ---
Derivative [Line Items] |  |
Notional amount | $ 837,665 | $ 1,058,478
Euro / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 717,212 | 781,398
British Pound / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 4,567 | 24,810
Israeli Shekel / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 12,327 | 12,535
Japanese Yen / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 26,320 | 42,340
Swiss Franc / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 25,714 | 74,939
Swedish Krona / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 16,924 | 48,596
Chinese Renminbi / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 4,522 | 32,124
New Taiwan Dollar / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 14,221 | 16,368
All other |  |
Derivative [Line Items] |  |
Notional amount | $ 15,858 | $ 25,368

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