Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Sep. 30, 2022
Financial assets:
Cash equivalents	$ 97,293	$ 102,313
Convertible note	2,000	2,000
Forward contracts	$ 1,038	$ 9,058
Derivative Asset Statement of Financial Position Extensible Enumeration	Other liabilities	Other assets
Options	$ 780
Financial assets, fair value	101,111	$ 113,371
Financial liabilities:
Forward contracts	$ 3,190	$ 2,908
Derivative Liability Statement Of Financial Position Extensible Enumeration	Other assets	Other liabilities
Financial liabilities, fair value	$ 3,190	$ 2,908
Level 1
Financial assets:
Cash equivalents	97,293	102,313
Convertible note	0	0
Forward contracts	0	0
Options	0
Financial assets, fair value	97,293	102,313
Financial liabilities:
Forward contracts	0	0
Financial liabilities, fair value	0	0
Level 2
Financial assets:
Cash equivalents	0	0
Convertible note	0	0
Forward contracts	1,038	9,058
Options	780
Financial assets, fair value	1,818	9,058
Financial liabilities:
Forward contracts	3,190	2,908
Financial liabilities, fair value	3,190	2,908
Level 3
Financial assets:
Cash equivalents	0	0
Convertible note	2,000	2,000
Forward contracts	0	0
Options	0
Financial assets, fair value	2,000	2,000
Financial liabilities:
Forward contracts	0	0
Financial liabilities, fair value	$ 0	$ 0

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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