General (Details) (USD $)
In Millions, unless otherwise specified
Sep. 01, 2011
EyeWonder LLC and Chors GmbH ("EyeWonder")
Jul. 26, 2011
MediaMind Technologies ("Mediamind")
Apr. 02, 2011
MIJO Corporation ("MIJO")
Acquisition      
Net assets acquired $ 61.0 $ 499.3 $ 43.8