Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands		Dec. 31, 2025	Sep. 30, 2025
Financial assets:
Cash equivalents	[1]	$ 44,996	$ 38,031
Financial assets, fair value		53,781	50,266
Financial liabilities:
Financial liabilities, fair value		1,866	4,773
Forward Contracts
Financial assets:
Foreign currency contract, asset		2,887	6,007
Financial liabilities:
Foreign currency contracts, liability		1,866	4,773
Option Contacts
Financial assets:
Foreign currency contract, asset		5,898	6,228
Level 1
Financial assets:
Cash equivalents	[1]	44,996	38,031
Financial assets, fair value		44,996	38,031
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	0
Level 2
Financial assets:
Cash equivalents	[1]	0	0
Financial assets, fair value		8,785	12,235
Financial liabilities:
Financial liabilities, fair value		1,866	4,773
Level 2 | Forward Contracts
Financial assets:
Foreign currency contract, asset		2,887	6,007
Financial liabilities:
Foreign currency contracts, liability		1,866	4,773
Level 2 | Option Contacts
Financial assets:
Foreign currency contract, asset		5,898	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	$ 0

[1] Money market funds and time deposits.