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Fair Value Measurements (Changes In Fair Value Of Level 3 Contingent Earn-Out Consideration Obligation) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Fair Value Disclosures [Abstract]        
Balance at beginning of period $ 50.5 $ 72.1 $ 105.3 $ 57.5
Remeasurement adjustment 8.5 10.2 17.6 24.4
Payment       (57.3)   
Foreign currency translation adjustment 0.4 3.1 (6.2) 3.5
Balance at end of period $ 59.4 $ 85.4 $ 59.4 $ 85.4