Income Taxes - Components of the Provision for 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	$ (4,807)	$ 2,661	$ (3,137)	$ 6,414
Foreign	115,801	3,403	117,875	(3,549)
Provision for income taxes	$ 110,994	$ 6,064	$ 114,738	$ 2,865
Effective income tax rate	946.50%	51.10%	337.10%	7.00%