Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Income Tax Contingency [Line Items]
Income before income taxes	$ 28.3	$ 44.5
Income tax provision	$ 7.9	$ 13.4
Effective tax rate	28.00%	30.10%
Unrecognized tax benefits	$ 147.6
Minimum
Income Tax Contingency [Line Items]
Unrecognized tax benefits could decrease up to	16.0
Maximum
Income Tax Contingency [Line Items]
Unrecognized tax benefits could decrease up to	$ 37.0