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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 | Jun. 30, 2022 | Sep. 30, 2021
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Prepaid Expenses and Other Current Assets |  |
Derivatives Fair Value [Line Items] |  |
Derivative instrument assets at fair value | $ 1,653 | $ 1,235
Other Assets |  |
Derivatives Fair Value [Line Items] |  |
Derivative instrument assets at fair value | 579 | 365
Accrued Expenses and Other Current Liabilities |  |
Derivatives Fair Value [Line Items] |  |
Derivative instrument liabilities at fair value | 463 | 131
Other Liabilities |  |
Derivatives Fair Value [Line Items] |  |
Derivative instrument liabilities at fair value | $ 231 | $ 148

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