Income Taxes (Schedule Of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Earnings (loss) before income taxes, Domestic	$ 234.0	$ 224.1	$ 147.8
Earnings (loss) before income taxes, Foreign	8.7	(2.0)	2.8
Earnings from continuing operations before income taxes	242.7	222.1	150.6
Current income tax expense (benefit), Federal	45.7	26.2	15.1
Current income tax expense (benefit), Foreign	2.1	1.4	5.0
Current income tax expense (benefit), State	8.0	4.7	(6.7)
Current income tax expense (benefit), Total	55.8	32.3	13.4
Deferred income tax expense (benefit), Federal	(3.7)	(36.6)	22.6
Deferred income tax expense (benefit), Foreign		(0.1)	(1.1)
Deferred income tax expense (benefit), State	1.0	5.9	16.4
Deferred income tax expense (benefit), Total	(2.7)	(30.8)	37.9
Income tax expense (benefit)	$ 53.1	$ 1.5	$ 51.3