Restructuring and Other Charges - Additional Information (Details) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Jun. 30, 2022 USD ($)	Jun. 30, 2021 USD ($)	Jun. 30, 2022 USD ($) Employee	Jun. 30, 2021 USD ($)	Sep. 30, 2020 USD ($) Employee
Restructuring Cost And Reserve [Line Items]
Restructuring and other charges, net	$ 4,458	$ (132)	$ 36,887	$ 584
Restructuring charges			32,750	345
Sublease income	1,176	$ 1,114	3,406	3,329
Payments for restructuring	9,500		36,600	6,228
Impairment and Accretion Exited Lease Facilities
Restructuring Cost And Reserve [Line Items]
Sublease income	600		1,000
Restructured Facilities
Restructuring Cost And Reserve [Line Items]
Payments for restructuring	800		2,100
Employee Severance and Related Benefits
Restructuring Cost And Reserve [Line Items]
Restructuring charges			33,471	162
Payments for restructuring	6,200		31,965	3,925
Employee Severance and Related Benefits | Restructuring Plan 2022
Restructuring Cost And Reserve [Line Items]
Restructuring charges	100		$ 33,600
Number of employees | Employee			330
Employee Severance and Related Benefits | Restructuring Plan 2022 | Minimum
Restructuring Cost And Reserve [Line Items]
Restructuring charges			$ 37,000
Employee Severance and Related Benefits | Restructuring Plan 2020
Restructuring Cost And Reserve [Line Items]
Restructuring charges			100	$ 200	$ 30,800
Number of employees | Employee					250
Saas Transformation
Restructuring Cost And Reserve [Line Items]
Other charges for professional fees	5,100		5,100
Saas Transformation | Restructuring Plan 2022
Restructuring Cost And Reserve [Line Items]
Other charges for professional fees	$ 2,500		$ 2,500