Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Disclosure [Abstract]
Effective income tax rate on continuing operations (as a percent)	18.90%	23.60%
Anticipated effective tax rate for beginning of year to date (as a percent)	23.90%
Discrete income tax expense (benefit)	$ 3.8
Decrease in unrecognized tax benefits	2.8
Excess tax benefits related to employee stock compensation	$ 1.0