Derivative Financial Instruments - Schedule of Offsetting Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2021	Sep. 30, 2020
Derivative [Line Items]
Net Amounts of Assets Presented in the Consolidated Balance Sheets	$ 1,119	$ 903
Foreign Currency Forwards
Derivative [Line Items]
Gross Amount of Recognized Assets	906
Gross Amounts Offset in the Consolidated Balance Sheets	0
Net Amounts of Assets Presented in the Consolidated Balance Sheets	906
Gross Amounts Not Offset in the Consolidated Balance Sheets, Financial Instruments	(906)
Gross Amounts Not Offset in the Consolidated Balance Sheets, Cash Collateral Received	0
Net Amount	$ 0

Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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Fair value, after effects of master netting arrangements, deduction of assets not subject to a master netting arrangement and elected not to be offset, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, offset against an obligation to return collateral.

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Fair value of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset, elected not to be offset, deducted from derivative assets.

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Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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