NET INCOME PER SHARE - Computation of Basic and Diluted Net Income Per Share (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Aug. 31, 2014	Aug. 31, 2013	Aug. 31, 2014	Aug. 31, 2013
Earnings Per Share [Abstract]
Net income attributable to TIBCO Software Inc.	$ 2,632	$ 21,251	$ 16,333	$ 39,471
Weighted-average shares of common stock used to compute basic net income per share (in shares)	163,429	160,638	162,904	161,012
Effect of dilutive common stock equivalents:
Stock options (in shares)	1,948	4,392	2,724	4,738
Stock awards (in shares)	885	1,961	1,197	2,122
Employee stock purchase program (in shares)	5	8	6	7
Weighted-average shares of common stock used to compute diluted net income per share (in shares)	166,267	166,999	166,831	167,879
Net income per share attributable to TIBCO Software Inc.:
Basic (usd per share)	$ 0.02	$ 0.13	$ 0.10	$ 0.25
Diluted (usd per share)	$ 0.02	$ 0.13	$ 0.10	$ 0.24