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GOODWILL AND ACQUIRED INTANGIBLE ASSETS - Change in Carrying Value of Goodwill (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Feb. 28, 2013
Goodwill [Roll Forward]  
Balance as of November 30, 2012 $ 532,290
Foreign currency translation (8,015)
Balance as of February 28, 2013 521,995
LogLogic, Inc
 
Goodwill [Roll Forward]  
Post-acquisition goodwill adjustment for the LogLogic acquisition $ (2,280) [1]
[1]