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Discontinued Operations (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Sales [Abstract]        
Disposal Group, Including Discontinued Operation, Revenue $ 4.1 $ 5.8 $ 16.1 $ 20.2
Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax 1.7      
Income from discontinued operations before taxes $ 1.0 $ 0.5 $ 1.6 $ 2.8