Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (7,843)	$ (2,812)
Derivative instruments:
Unrealized net loss	(444)
Net loss reclassified to earnings	31
Net changes related to available-for-sale securities, net of tax		(5)
Foreign currency translation adjustments	5,670	(1,647)
Other comprehensive income (loss)	5,257	(1,652)
Comprehensive loss	$ (2,586)	$ (4,464)