Divestitures (Schedule Of Results Included In Discontinued Operations) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ 0.6	$ 3.5	$ 2.4
Information Management [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue from discontinued operations		8.2
Gain (loss) on disposition	0.2	0.3	(6.4)
Income (loss) before income taxes	0.2	0.3	(6.4)
Income tax on gain (loss) on dispostion	(0.4)	(3.2)	(8.8)
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	$ 0.6	$ 3.5	$ 2.4