Derivative Financial Instruments - Summary of Fair Value and Presentation in Condensed Consolidated Balance Sheet for Derivative Instruments (Details) - Foreign Currency Forward Contracts - Not Designated - USD ($) $ in Thousands	Mar. 31, 2024	Sep. 30, 2023
Prepaid Expenses and Other Current Assets
Derivatives Fair Value [Line Items]
Derivative instrument assets at fair value	$ 376	$ 477
Other Assets
Derivatives Fair Value [Line Items]
Derivative instrument assets at fair value	206	256
Accrued Expenses and Other Current Liabilities
Derivatives Fair Value [Line Items]
Derivative instrument liabilities at fair value	1,247	1,613
Other Liabilities
Derivatives Fair Value [Line Items]
Derivative instrument liabilities at fair value	$ 318	$ 460