Derivative Financial Instruments - Schedule of Notional Amounts of Outstanding Forward Contracts (Details) - Forward Contracts - Designated as Hedging Instrument - Net Investment Hedging - USD ($) $ in Thousands	Sep. 30, 2023	Sep. 30, 2022
Derivative [Line Items]
Notional amount	$ 348,208	$ 110,466
Euro / U.S. Dollar
Derivative [Line Items]
Notional amount	337,923	110,466
Japanese Yen / U.S. Dollar
Derivative [Line Items]
Notional amount	$ 10,285	$ 0