Restructuring, Impairment and Other Charges - Restructuring Charges By Statement of Income Account (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Schedule of restructuring and related costs    
Restructuring Charges $ 3.1 $ 5.1
Cost of sales – services    
Schedule of restructuring and related costs    
Restructuring Charges 0 0.7
Selling and administrative expense    
Schedule of restructuring and related costs    
Restructuring Charges 2.5 4.4
Research, development and engineering expense    
Schedule of restructuring and related costs    
Restructuring Charges $ 0.6 $ 0