Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Sep. 30, 2024
Financial assets:
Cash equivalents	[1]	$ 38,031	$ 48,509
Financial assets, fair value		50,266	49,711
Financial liabilities:
Financial liabilities, fair value		4,773	4,166
Forward Contracts
Financial assets:
Foreign currency contract, asset		6,007	1,202
Financial liabilities:
Foreign currency contracts, liability		4,773	4,166
Option Contacts
Financial assets:
Foreign currency contract, asset		6,228
Level 1
Financial assets:
Cash equivalents	[1]	38,031	48,509
Financial assets, fair value		38,031	48,509
Financial liabilities:
Financial liabilities, fair value		0	0
Level 1 | Forward Contracts
Financial assets:
Foreign currency contract, asset		0	0
Financial liabilities:
Foreign currency contracts, liability		0	0
Level 1 | Option Contacts
Financial assets:
Foreign currency contract, asset		0
Level 2
Financial assets:
Cash equivalents	[1]	0	0
Financial assets, fair value		12,235	1,202
Financial liabilities:
Financial liabilities, fair value		4,773	4,166
Level 2 | Forward Contracts
Financial assets:
Foreign currency contract, asset		6,007	1,202
Financial liabilities:
Foreign currency contracts, liability		4,773	4,166
Level 2 | Option Contacts
Financial assets:
Foreign currency contract, asset		6,228
Level 3
Financial assets:
Cash equivalents	[1]	0	0
Financial assets, fair value		0	0
Financial liabilities:
Financial liabilities, fair value		0	0
Level 3 | Forward Contracts
Financial assets:
Foreign currency contract, asset		0	0
Financial liabilities:
Foreign currency contracts, liability		0	$ 0
Level 3 | Option Contacts
Financial assets:
Foreign currency contract, asset		$ 0

[1] Money market funds and time deposits.