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Consolidated Statements Of Comprehensive Income (Parenthetical) (Unaudited) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Mar. 31, 2025 | Mar. 31, 2024
Statement of Comprehensive Income [Abstract] |  |  |  |
Hedge gain (loss) arising during the period, tax | $ 4.9 | $ (2.1) | $ (3.3) | $ 1.7
Foreign currency translation adjustment, tax | 0.0 | 0.0 | 0.0 | 0.0
Change in pension benefit, net of tax | $ 0.0 | $ 0.0 | $ (0.1) | $ 0.0

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