Foreign Currency Forward Contracts (Details) - Selling, General and Administrative Expenses - Not Designated as Hedging Instrument - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Foreign currency balance sheet hedging
Foreign currency net gain (loss)	$ (609)	$ (197)	$ (1,169)	$ (369)
Foreign Currency Transaction
Foreign currency balance sheet hedging
Foreign currency net gain (loss)	510	(89)	290	(542)
Foreign Exchange Forward
Foreign currency balance sheet hedging
Foreign currency net gain (loss)	$ (1,119)	$ (108)	$ (1,459)	$ 173