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Fair Value Measurements (Details 2) (Contingent consideration, USD $)
In Millions, unless otherwise specified
9 Months Ended
Sep. 30, 2013
Contingent consideration
 
Changes in liabilities measured at fair value on a recurring basis using significant unobservable inputs (Level 3)  
Balance at beginning of year $ 27.3
Loss (gain) recognized in earnings (1.1)
Settlements (9.8)
Foreign currency translation (0.1)
Balance at end of year $ 16.3