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Subsequent Events (Details)
$ in Thousands
12 Months Ended
Sep. 30, 2022
USD ($)
Installment
Sep. 30, 2021
USD ($)
Sep. 30, 2020
USD ($)
Subsequent Event [Line Items]      
Vesting period 1 year    
Restructuring Charges | $ $ (32,410) $ (2,136) $ (26,427)
Payments for restructuring | $ $ 40,800 $ 6,681 $ 31,502
Service-Based Restricted Stock Units      
Subsequent Event [Line Items]      
Number of equal annual installments | Installment 3    
Performance-Based Restricted Stock Units      
Subsequent Event [Line Items]      
Number of equal annual installments | Installment 3    
Vesting period 3 years