Income Taxes (Details Textuals) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 15.3
Effective Income Tax Rate Reconciliation, Percent	20.30%	20.00%	18.50%
Deferred Tax Liabilities, Net	$ 12.9
Operating Loss Carryforwards [Line Items]
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount	(104.8)
Deferred Tax Assets, Net		$ 98.2
Deferred Tax Assets, Gross	328.0	108.4
Deferred Tax Assets, Net of Valuation Allowance		98.2
Deferred Tax Assets, Valuation Allowance	340.9	10.2
Valuation Allowance, Deferred Tax Asset, Change in Amount	110.1	(3.2)	$ (2.2)
Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount	1.7	$ (2.0)	$ 0.0
Significant Change in Unrecognized Tax Benefits is Reasonably Possible [Line Items]
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 15.3