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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, 2023 | Sep. 30, 2023
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Derivative [Line Items] |  |
Notional amount | $ 514,009 | $ 523,636
Canadian / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 2,547 | 5,135
Euro / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 437,668 | 383,227
British Pound / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 5,359 | 6,058
Israeli Shekel / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 9,264 | 11,852
JPY/ U.S Dollar |  |
Derivative [Line Items] |  |
Notional amount | 0 | 4,770
Swiss Franc / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 11,303 | 32,766
Swedish Krona / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 14,229 | 35,085
Chinese Renminbi / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 5,180 | 16,660
New Taiwan Dollar / U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 18,492 | 11,855
Korea Won/ U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 0 | 6,157
Danish krone/ U.S. Dollar |  |
Derivative [Line Items] |  |
Notional amount | 5,358 | 6,731
All other |  |
Derivative [Line Items] |  |
Notional amount | $ 4,609 | $ 3,340

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