Business Combinations (Extended Results Acquisition) (Details) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2013	Nov. 30, 2012		Nov. 30, 2011	Sep. 13, 2013 Extended Results, Inc.
Business Acquisition [Line Items]
Cash					$ 19
Accounts Receivable					649
Other assets					21
Identifiable intangible assets					7,300
Goodwill	582,091	532,290	[1]	451,821	13,589
Liabilities					(578)
Total preliminary purchase price					$ 21,000

[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.