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v3.25.3

Stockholders' Equity - Narrative (Details) - USD ($) shares in Millions, $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
Class of Stock [Line Items] |  |  |
Total cost | $ 60.3 | $ 229.0 | $ 1,539.6
Excise tax on share repurchases | $ 16.4 |  |
Tender Offer |  |  |
Class of Stock [Line Items] |  |  |
Shares repurchased (in shares) |  |  | 27.0
Total cost |  |  | $ 1,024.0
Shares repurchased and retired, fees and expenses |  |  | 16.4
Excise tax on share repurchases |  |  | $ 10.2

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