Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Tax benefit (expense)	$ 21.1	$ 10.9	$ 52.1	$ 42.5
Effective income tax rate	21.60%	16.80%	18.20%	19.80%