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, 2022	Sep. 30, 2021
Prepaid Expenses and Other Current Assets
Derivatives Fair Value [Line Items]
Derivative instrument assets at fair value	$ 1,993	$ 1,235
Other Assets
Derivatives Fair Value [Line Items]
Derivative instrument assets at fair value	636	365
Accrued Expenses and Other Current Liabilities
Derivatives Fair Value [Line Items]
Derivative instrument liabilities at fair value	93	131
Other Liabilities
Derivatives Fair Value [Line Items]
Derivative instrument liabilities at fair value	$ 96	$ 148