Restructuring and Other Costs, Net - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	$ 474	$ 537	$ 5,389	$ 1,017
Severance Charge
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	13	45	250	381
Facilities Closure
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	170	$ 447	367	$ 565
One-Time Charges
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	$ 300
Stock Based Compensation due to the Resignation of Former CEO
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)			4,000
Stock Based Compensation, Net of Forfeitures, due to the Resignation of Former CEO
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)			$ 5,000