Income Taxes (Details) - USD ($) $ in Millions	3 Months Ended			9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Tax Disclosure [Abstract]
Income Before Income Taxes	$ 6.4		$ 18.0	$ 27.8	$ 44.0
Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount	1.3		3.8	5.8	9.2
Effective Income Tax Rate Reconciliation, Interim Adjustment, Amount	3.4		(0.6)	0.8	(0.2)
Effective Income Tax Rate Reconciliation, Other Adjustments, Amount	(3.1)		1.6	2.2	1.3
Other Tax Expense (Benefit)	0.9	$ (4.3)	(0.1)	6.3	(0.5)
Income tax provision	$ 0.7		$ 4.9	$ 2.5	$ 10.8
Effective Income Tax Rate Reconciliation, Percent	10.90%		27.20%	9.00%	24.50%
Effective Income Tax Rate Reconciliation, Tax Contingency, Domestic, Amount	$ 1.0
Effective Income Tax Rate Reconciliation, Tax Settlement, Amount			$ 0.8
Effective Income Tax Rate Reconciliation, Tax Contingency, Amount			0.3
Tax Adjustments, Settlements, and Unusual Provisions			$ 0.4