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Income Taxes - Effective Tax Rate-Tax Reform Adjustment Related to Deemed Foreign Dividends (Details) - USD ($) $ in Millions | 9 Months Ended |
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Jun. 30, 2025 | Mar. 31, 2025
Income Tax Disclosure [Abstract] |  |
Tax reform adjustment related to deemed foreign dividends | $ 34.9 |
Unrecognized tax benefits |  | $ 67.8

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- Definition Amount of non-recurring benefit related to U.S. taxation of deemed foreign dividends pursuant to Tax Cuts and Jobs Act. + References No definition available. + Details
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