Business Segments and International Operations (Income from Continuing Operations by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Nov. 30, 2016	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016	Nov. 30, 2015	Aug. 31, 2015	May 31, 2015	Feb. 28, 2015	Nov. 30, 2016	Nov. 30, 2015	Nov. 30, 2014
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue									$ 405,341	$ 377,554	$ 332,533
Total costs of revenue and operating expenses									125,878	130,290	92,473
Total contribution margin									279,463	247,264	240,060
Other unallocated expenses									309,172	232,510	159,320
(Loss) income from operations	$ (62,364)	$ 13,606	$ 12,344	$ 6,705	$ 20,081	$ 8,594	$ (2,735)	$ (11,186)	(29,709)	14,754	80,740
Other expense, net									(5,571)	(2,400)	(2,936)
(Loss) income before income taxes									(35,280)	12,354	77,804
OpenEdge [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue									276,267	295,934	296,721
Total costs of revenue and operating expenses									72,938	77,085	70,811
Total contribution margin									203,329	218,849	225,910
Data Connectivity and Integration [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue									48,009	37,926	34,772
Total costs of revenue and operating expenses									12,760	13,819	12,308
Total contribution margin									35,249	24,107	22,464
Application Development and Deployment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total revenue									81,065	43,694	1,040
Total costs of revenue and operating expenses									40,180	39,386	9,354
Total contribution margin									$ 40,885	$ 4,308	$ (8,314)