GOODWILL AND ACQUIRED INTANGIBLE ASSETS - Change in Carrying Value of Goodwill (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Feb. 28, 2014
Goodwill [Roll Forward]
Balance as of November 30, 2013	$ 582,091
Foreign currency translation	6,150
Balance as of February 28, 2014	588,191
Extended Results, Inc.
Goodwill [Roll Forward]
Post-acquisition goodwill adjustment for the Extended Results acquisition	$ (50)