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, 2024	Sep. 30, 2023
Derivative [Line Items]
Notional amount	$ 514,850	$ 523,636
Canadian / U.S. Dollar
Derivative [Line Items]
Notional amount	5,125	5,135
Euro / U.S. Dollar
Derivative [Line Items]
Notional amount	396,345	383,227
British Pound / U.S. Dollar
Derivative [Line Items]
Notional amount	13,460	6,058
Israeli Shekel / U.S. Dollar
Derivative [Line Items]
Notional amount	12,091	11,852
Japanese Yen / U.S. Dollar
Derivative [Line Items]
Notional amount	27,914	4,770
Swiss Franc / U.S. Dollar
Derivative [Line Items]
Notional amount	16,743	32,766
Swedish Krona / U.S. Dollar
Derivative [Line Items]
Notional amount	21,841	35,085
Chinese Renminbi / U.S. Dollar
Derivative [Line Items]
Notional amount	4,209	16,660
New Taiwan Dollar / U.S. Dollar
Derivative [Line Items]
Notional amount	8,915	11,855
Korean Won / U.S. Dollar
Derivative [Line Items]
Notional amount	0	6,157
Danish Krone / U.S. Dollar
Derivative [Line Items]
Notional amount	3,353	6,731
All other
Derivative [Line Items]
Notional amount	$ 4,854	$ 3,340