Goodwill and Other Acquired Intangible Assets (Changes In Carrying Amount Of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended										12 Months Ended		12 Months Ended
	Nov. 30, 2013		Nov. 30, 2012		Nov. 30, 2013 LogLogic, Inc.	Nov. 30, 2012 LogLogic, Inc.	Nov. 30, 2012 Nimbus Partners Limited	Nov. 30, 2012 Other Business Combination	Nov. 30, 2013 Maporama Solutions	Mar. 25, 2013 Maporama Solutions	Nov. 30, 2013 StreamBase Systems	Jun. 03, 2013 StreamBase Systems	Nov. 30, 2013 Extended Results, Inc.	Sep. 13, 2013 Extended Results, Inc.
Goodwill [Roll Forward]
Beginning balance	$ 532,290	[1]	$ 451,821							$ 6,508		$ 26,546		$ 13,589
Goodwill recorded for the acquisition					(1,919)	73,460	1,077		6,508
Goodwill adjusted for the acquisition			5,131					801			26,546		13,589
Foreign currency translation	5,077
Ending balance	$ 582,091		$ 532,290	[1]						$ 6,508		$ 26,546		$ 13,589

[1] Pursuant to the business combinations accounting guidance, we record goodwill adjustments for the effect on goodwill changes to net assets acquired during the measurement period (up to one year from the date of an acquisition). Goodwill adjustments were not significant to our previously reported operating results or financial position.