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Accumulated Other Comprehensive Loss (Schedule Of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2023
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |  |  |
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax | $ (27.9) |  | $ (28.5)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax | 0.6 |  |
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax | (6.9) |  | (20.2)
Foreign currency translation | 13.3 | $ 4.0 |
Accumulated other comprehensive income (loss) | (34.8) |  | $ (48.7)
Other comprehensive income (loss), net of tax | 13.9 |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax | 13.3 |  |
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax | 0.0 |  |
Minimum pension liability | 0.8 |  |
Other comprehensive income (loss), pension income tax effects | $ (0.2) | $ (0.3) |

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