TIBCO Software Inc. Stockholders' Equity (Summary Activity Of Stock Repurchase Programs) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
Nov. 30, 2011	Nov. 30, 2010	Nov. 30, 2009
TIBCO Software Inc. Stockholders' Equity [Abstract]
Cash used for repurchases	$ 194,059	$ 204,280	$ 106,447
Shares repurchased	7,310	15,084	12,928
Average price per share	$ 26.55	$ 13.54	$ 8.23

The cash outflow to reacquire common stock during the period.

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