Income Taxes Textuals 2 (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Tax Cuts and Jobs Act of 2017, Provisional Tax Benefit				$ 3.5
Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit)				$ 17.1
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%	21.00%	35.00%
Tax Cuts and Jobs Act Change in Tax Rate, Deferred Tax Asset (Liability), Income Tax Expense (Credit)			$ 2.8	$ 5.0
Tax Cuts and Jobs Act, Transition Tax, Income Tax Expense (Credit)			1.2	6.1
Tax Cuts and Jobs Act of 2017, Provisional Valuation Allowance				$ 9.5
Tax Cuts and Jobs Act of 2017, Complete Accounting, Change in Tax Rate, Provisional Income Tax Expense (Benefit)	$ (11.1)		11.1
Tax Cuts and Jobs Act, Valuation Allowance Reversal, Tax Benefit			$ 7.1