Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Effective tax rate	4.90%	6.60%
Net unrecognized tax benefit	$ 68.8		$ 84.5
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	58.2
Income tax interest and penalties accrued	3.2
Net deferred tax assets	$ 365.1