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Stockholders' Equity - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Sep. 30, 2024 | Sep. 30, 2023 | Sep. 30, 2022 | Oct. 01, 2024
Class of Stock [Line Items] |  |  |  |
Preferred stock, shares authorized | 5,000,000 | 5,000,000 |  |
Common stock, shares authorized | 500,000,000 | 500,000,000 |  |
Stock repurchased during period (in shares) | 0 | 0 | 1,050,000.00 |
Stock repurchased during period, value |  |  | $ 125 |
Maximum |  |  |  |
Class of Stock [Line Items] |  |  |  |
Common stock, shares authorized | 500,000,000 |  |  |
Maximum | Forecast |  |  |  |
Class of Stock [Line Items] |  |  |  |
Stock authorized to repurchase |  |  |  | $ 2,000
Series A Junior Participating Preferred Stock |  |  |  |
Class of Stock [Line Items] |  |  |  |
Preferred stock, shares authorized | 500,000 |  |  |

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