Derivative Financial Instruments - Schedule of Summary of Outstanding Forward Foreign Currency Contracts by Currency (Details) € in Thousands, £ in Thousands, $ in Thousands, $ in Thousands	Mar. 31, 2026 EUR (€)	Mar. 31, 2026 USD ($)	Mar. 31, 2026 GBP (£)	Mar. 31, 2026 SGD ($)	Sep. 30, 2025 EUR (€)	Sep. 30, 2025 USD ($)	Sep. 30, 2025 GBP (£)	Sep. 30, 2025 SGD ($)
Foreign Exchange Contracts To Sell European Euro for US Dollar
Derivative [Line Items]
Fair Value		$ 0				$ 0
Foreign Exchange Contracts To Sell European Euro for US Dollar | Foreign currency forward contracts | Short | Not Designated as Hedging Instrument
Derivative [Line Items]
Contract Amount	€ 5,400	6,212			€ 7,700	9,034
Foreign Exchange Contracts To Purchase British Pounds With US Dollars
Derivative [Line Items]
Fair Value		0				0
Foreign Exchange Contracts To Purchase British Pounds With US Dollars | Foreign currency forward contracts | Short | Not Designated as Hedging Instrument
Derivative [Line Items]
Contract Amount		15,400	£ 11,636			13,500	£ 10,019
Foreign Exchange Contracts To Purchase Singapore Dollars With US Dollars
Derivative [Line Items]
Fair Value		0				0
Foreign Exchange Contracts To Purchase Singapore Dollars With US Dollars | Foreign currency forward contracts | Short | Not Designated as Hedging Instrument
Derivative [Line Items]
Contract Amount		$ 7,300		$ 9,355		$ 6,300		$ 8,087