Restructuring and Other Costs, Net - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	$ 4,915	$ 480
Facilities Closure
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	197	118
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
Severance Charge
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	$ 237	$ 336