Segment Information Segment Information - Revenue by Service/Product Solution (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Revenue from External Customer [Line Items]    
Services $ 394.0 $ 383.4
Products 261.5 304.9
Revenue, Net 655.5 688.3
Financial Self Service And Security [Member]    
Revenue from External Customer [Line Items]    
Revenue, Net 645.2 608.9
Financial Self-Service [Member]    
Revenue from External Customer [Line Items]    
Services 291.4 285.0
Products 203.8 181.5
Revenue, Net 495.2 466.5
Security [Member]    
Revenue from External Customer [Line Items]    
Services 102.6 98.4
Products 47.4 44.0
Revenue, Net 150.0 142.4
Brazil Other [Member]    
Revenue from External Customer [Line Items]    
Revenue, Net $ 10.3 $ 79.4