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Accumulated Other Comprehensive Loss (Schedule Of Accumulated Other Comprehensive Loss) (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jun. 30, 2024 | Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | Sep. 30, 2023
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] |  |  |  |  |
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax | $ (26.7) |  | $ (26.7) |  | $ (28.5)
Other Comprehensive Income (Loss), Defined Benefit Plan, Gain (Loss), Reclassification Adjustment from AOCI, after Tax |  |  | 1.8 |  |
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax | (15.7) |  | (15.7) |  | (20.2)
Foreign currency translation | (4.4) | $ (4.9) | 4.5 | $ (3.0) |
Accumulated other comprehensive income (loss) | (42.4) |  | (42.4) |  | $ (48.7)
Other comprehensive income (loss), net of tax |  |  | 6.3 |  |
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, before Tax |  |  | 4.5 |  |
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax |  |  | 0.0 |  |
Minimum pension liability |  |  | 2.4 |  |
Other comprehensive income (loss), pension income tax effects | $ (0.2) | $ (0.2) | $ (0.6) | $ (0.8) |

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