Divestitures (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 12 Months Ended
Mar. 31, 2014
Dec. 31, 2014
Discontinued Operations and Disposal Groups [Abstract]    
Total Consideration for Disposal Group $ 45.3  
Proceeds from divestiture of businesses 26.3  
Net gain on divestitures   $ 13.8