Income Tax Matters, Provision Table (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Tax Provision
Domestic	$ 7.5	$ 15.7	$ 20.5	$ 35.8
Foreign	0.7	0.4	1.4	1.0
Total	$ 8.2	$ 16.1	$ 21.9	$ 36.8

Amount of current and deferred federal income tax expense (benefit) attributable to income (loss) from continuing operations.

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