Income Taxes - Components of Income Before Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Domestic	$ 38,167	$ 4,895	$ 52,366	$ 19,139
Foreign	(26,440)	6,967	(18,327)	21,628
Income before income taxes	$ 11,727	$ 11,862	$ 34,039	$ 40,767