Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Income Taxes [Abstract]
Income before income taxes	$ 59.1	$ 65.8
Provision for income taxes	$ 12.0	$ 23.4
Effective income tax provision rate	20.30%	35.60%

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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