Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Effective income tax rate	21.80%	96.90%	23.20%	28.80%
Liability for unrecognized tax benefit	$ 23.6		$ 23.6		$ 20.8
Unrecognized tax benefit highly certain	$ 2.7		$ 2.7		$ 2.7