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v3.21.2

Subsequent Events (Details) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Nov. 19, 2021 USD ($) Installment | Nov. 03, 2021 USD ($) | Sep. 30, 2021 USD ($) Installment | Sep. 30, 2020 USD ($) | Sep. 30, 2019 USD ($)
Subsequent Event [Line Items] |  |  |  |  |
Vesting period |  |  | 1 year |  |
Restructuring Charges |  |  | $ (2,136) | $ (26,427) | $ (48,612)
Payments for restructuring |  |  | $ 6,681 | $ 31,502 | $ 24,721
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 |  |
Subsequent Event | Past Restructurings |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Payments for restructuring |  | $ 5,000 |  |  |
Subsequent Event | Minimum |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Restructuring Charges |  | (45,000) |  |  |
Payments for restructuring |  | 45,000 |  |  |
Subsequent Event | Maximum |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Restructuring Charges |  | (50,000) |  |  |
Payments for restructuring |  | $ 50,000 |  |  |
Subsequent Event | Employees |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Shares granted, value | $ 20,500 |  |  |  |
Subsequent Event | Executive Officers |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Shares granted, value | $ 3,100 |  |  |  |
Subsequent Event | Service-Based Restricted Stock Units |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Number of equal annual installments | Installment | 3 |  |  |  |
Subsequent Event | Service-Based Restricted Stock Units | Employees |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Shares granted, value | $ 47,000 |  |  |  |
Subsequent Event | Service-Based Restricted Stock Units | Executive Officers |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Shares granted, value | $ 11,100 |  |  |  |
Subsequent Event | Performance-Based Restricted Stock Units |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Number of equal annual installments | Installment | 3 |  |  |  |
Vesting period | 3 years |  |  |  |
Subsequent Event | Performance-Based Restricted Stock Units | Employees |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Shares granted, value | $ 18,200 |  |  |  |
Subsequent Event | Performance-Based Restricted Stock Units | Executive Officers |  |  |  |  |
Subsequent Event [Line Items] |  |  |  |  |
Shares granted, value | $ 11,100 |  |  |  |

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