Income Taxes, Earnings Before Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Mar. 31, 2025	Mar. 31, 2024	Mar. 31, 2023
Earnings Before Income Taxes [Abstract]
United States	$ 41.7	$ 37.2	$ 12.5
Foreign	212.3	177.4	112.8
Earnings before income taxes	$ 254.0	$ 214.6	$ 125.3

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details