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 Contingency [Line Items]
Deferred Tax Liability, Ending Balance	$ 13.2		$ 13.2
Operating Loss Carryforwards	2.0		2.0
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 4.3		$ 4.3
Effective Income Tax Rate On Unrecognized Tax Benefits That Would Impact Effective Tax Rate			(0.27%)
Effective Tax Rate as a Percentage of pre-tax Income (loss)	21.30%	23.60%	(4.40%)	24.50%
State and Local Jurisdiction [Member]
Income Tax Contingency [Line Items]
Deferred Tax Assets, Valuation Allowance	$ 1.1		$ 1.1