Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Income Tax Disclosure [Line Items]
U.S. federal statutory rates	21.00%	21.00%	21.00%	21.00%
Effective income tax rate	116.00%	35.80%	16.80%	(11.10%)
Provision for (benefit from) income taxes	$ 3,445	$ 6,216	$ 3,744	$ (3,199)
Net increase (decrease) in income taxes	$ (2,800)		6,900
Netherlands
Income Tax Disclosure [Line Items]
Provision for (benefit from) income taxes			(15,800)
Tax benefit partially offset			$ (3,500)