Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Income before income taxes	$ 162.1	$ 196.7	$ 167.7	$ 193.1
Income tax expense	$ 20.9	$ 29.4	$ 24.9	$ 26.8
Effective income tax rate			14.80%

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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