Income Taxes (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Jan. 01, 2020	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Net deferred tax asset recorded upon entity conversion	$ 256.6
Net deferred tax liability recorded upon entity conversion	400.5
Net reduction to net deferred tax asset recorded upon entity conversion	$ 143.9			$ 143.9
Income tax expense, conversion of entity				90.3
Reduction in equity for income tax effects of entity conversion				53.6
Income tax expense		$ 82.4	$ 9.4	54.7	$ 48.9
Income tax benefit resulting from net loss during the period				$ 35.6
Effective tax rate		20.00%	4.00%	(47.00%)	4.00%