Discontinued Operations And Assets And Liabilities Held For Sale (Components Of Discontinued Operations In Consolidated Statements Of Income (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]
Operating expenses	$ 0.3	$ 2.8	$ 2.3	$ 3.4
Loss before income taxes	(0.3)	(2.8)	(2.3)	(3.4)
Income tax benefit	(0.2)	(0.9)	(0.9)	(1.2)
Loss from discontinued operations, net of tax	$ (0.1)	$ (1.9)	$ (1.4)	$ (2.2)