Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Sep. 30, 2022
Financial assets:
Cash equivalents	$ 70,583	$ 102,313
Convertible note	$ 2,000	$ 2,000
Derivative Asset Statement of Financial Position Extensible Enumeration	Other liabilities	Other assets
Financial assets, fair value	$ 74,924	$ 113,371
Financial liabilities:
Derivative Liability Statement Of Financial Position Extensible Enumeration	Other assets	Other liabilities
Financial liabilities, fair value	$ 1,537	$ 2,908
Options Member
Financial assets:
Foreign currency contract, asset	594
Forward Contracts
Financial assets:
Foreign currency contract, asset	1,747	9,058
Financial liabilities:
Foreign currency contracts, liability	1,537	2,908
Level 1
Financial assets:
Cash equivalents	70,583	102,313
Convertible note	0	0
Financial assets, fair value	70,583	102,313
Financial liabilities:
Financial liabilities, fair value	0	0
Level 1 | Options Member
Financial assets:
Foreign currency contract, asset	0
Level 1 | Forward Contracts
Financial assets:
Foreign currency contract, asset	0	0
Financial liabilities:
Foreign currency contracts, liability	0	0
Level 2
Financial assets:
Cash equivalents	0	0
Convertible note	0	0
Financial assets, fair value	2,341	9,058
Financial liabilities:
Financial liabilities, fair value	1,537	2,908
Level 2 | Options Member
Financial assets:
Foreign currency contract, asset	594
Level 2 | Forward Contracts
Financial assets:
Foreign currency contract, asset	1,747	9,058
Financial liabilities:
Foreign currency contracts, liability	1,537	2,908
Level 3
Financial assets:
Cash equivalents	0	0
Convertible note	2,000	2,000
Financial assets, fair value	2,000	2,000
Financial liabilities:
Financial liabilities, fair value	0	0
Level 3 | Options Member
Financial assets:
Foreign currency contract, asset	0
Level 3 | Forward Contracts
Financial assets:
Foreign currency contract, asset	0	0
Financial liabilities:
Foreign currency contracts, liability	$ 0	$ 0