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Income Taxes (Details) - USD ($) $ in Millions | 12 Months Ended
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Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2023
Income Tax Disclosure |  |  |
Effective income tax rate | 25.20% | 25.20% | 24.90%
Undistributed earnings of foreign subsidiaries | $ 3.0 | $ 4.2 |
Income (loss) from continuing operations before income taxes, foreign | $ (1.5) | $ 2.0 | $ 2.0

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