Business Combinations (Pro Forma Adjusted Summary) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Nov. 30, 2012	Nov. 30, 2011
Business Combinations [Abstract]
Pro forma adjusted total revenue	$ 1,037,418	$ 970,467
Pro forma adjusted net income attributable to TIBCO Software Inc.	$ 116,867	$ 103,262
Pro forma adjusted net income per share attributable to TIBCO Software Inc.: Basic (usd per share)	$ 0.73	$ 0.64
Pro forma adjusted net income per share attributable to TIBCO Software Inc.: Diluted (usd per share)	$ 0.69	$ 0.60