Income Taxes - Income (Loss) from Continuing Operations before Taxes (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
U.S.	$ 94.8	$ 107.4	$ 126.0
Non-U.S.	22.8	17.2	12.6
Income before income taxes	$ 117.6	$ 124.6	$ 138.6

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