Business Segments and International Operations (Income from Continuing Operations by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	May 31, 2016	May 31, 2015	May 31, 2016	May 31, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenue	$ 96,118	$ 88,817	$ 185,599	$ 170,198
Segment costs of revenue and operating expenses	30,154	32,430	59,930	64,598
Segment contribution margin	65,964	56,387	125,669	105,600
Other unallocated expenses	53,620	59,122	106,620	119,521
Income (loss) from operations	12,344	(2,735)	19,049	(13,921)
Other (expense) income, net	(1,361)	(1,025)	(3,186)	(93)
Income (loss) before income taxes	10,983	(3,760)	15,863	(14,014)
OpenEdge [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenue	66,928	71,906	131,061	141,377
Segment costs of revenue and operating expenses	17,296	18,446	35,360	37,980
Segment contribution margin	49,632	53,460	95,701	103,397
Data Connectivity and Integration [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenue	10,005	7,275	16,601	14,388
Segment costs of revenue and operating expenses	3,134	3,133	6,035	6,383
Segment contribution margin	6,871	4,142	10,566	8,005
Application Development and Deployment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenue	19,185	9,636	37,937	14,433
Segment costs of revenue and operating expenses	9,724	10,851	18,535	20,235
Segment contribution margin	$ 9,461	$ (1,215)	$ 19,402	$ (5,802)