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]
Income tax (benefit)/expense	$ (3.5)	$ (4.2)	$ (5.8)	$ 2.5
Effective tax rate	22.90%	(30.40%)	29.40%	4.70%