Restructuring and Other Costs, Net - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	$ 1,197	$ 1,760	$ 6,586	$ 2,777
Severance Charge
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	1,278		1,528	381
Facilities Closure
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	154	447	521	1,012
Other One-Time Gains
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)	$ 200
Other One-Time Charges
Restructuring Cost And Reserve [Line Items]
Restructuring charges (reversal)		$ 1,300		$ 1,400
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