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Income Taxes (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Effective income tax rate on continuing operations (as a percent)	21.80%	23.10%
Anticipated effective tax rate for beginning of year to date (as a percent)	23.70%	24.70%
Discrete income tax expense (benefit)	$ 5.0	$ 3.5
Reduced tax liability on prior tax filings	2.7
Excess tax benefits related to employee stock compensation	1.5
Decrease in unrecognized tax benefits	$ 1.2

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Excess Tax Benefits Related to Employee Stock Compensation

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of decrease in deferred tax liability previously recognized attributable to taxable temporary differences from undistributed earnings of foreign subsidiary and other recognized entity now subject to transition tax.

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Amount of increase (decrease) in unrecognized tax benefits attributable to uncertain tax positions taken in tax returns.

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