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Acquisitions (Details)
In Millions, unless otherwise specified
9 Months Ended 0 Months Ended 0 Months Ended
Sep. 30, 2014
USD ($)
Sep. 30, 2013
USD ($)
Sep. 11, 2014
Santal [Member]
USD ($)
Sep. 11, 2014
Santal [Member]
BRL
Sep. 11, 2014
Santal [Member]
Aug. 01, 2014
Intersystems Holdings, Inc. [Member]
USD ($)
Acquired Finite-Lived Intangible Assets [Line Items]            
Percentage of company acquired         39.00%  
Payments to acquire business     $ 3.7 9.0    
Price paid to acquire business           134.4
Cash acquired           4.1
Payments to acquire business, less cash acquired 130.4 0.1       130.3
Intangible assets acquired 46.3         46.3
Goodwill acquired $ 89.6         $ 89.6