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		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Discontinued Operations and Disposal Groups [Abstract]
Operating expenses	$ 2.0	$ 0.6	$ 2.0	$ 0.6
Loss before income taxes	(2.0)	(0.6)	(2.0)	(0.6)
Income tax benefit	(0.7)	(0.3)	(0.7)	(0.3)
Loss from discontinued operations, net of tax	$ (1.3)	$ (0.3)	$ (1.3)	$ (0.3)