Business Segments and International Operations (Income from Continuing Operations by Segment) (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 29, 2016	Feb. 28, 2015
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenue	$ 89,481	$ 81,381
Segment costs of revenue and operating expenses	29,776	32,168
Segment contribution margin	59,705	49,213
Other unallocated expenses	53,000	60,399
Income (loss) from operations	6,705	(11,186)
Other (expense) income, net	(1,825)	933
Income (loss) before income taxes	4,880	(10,253)
OpenEdge [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenue	64,133	69,471
Segment costs of revenue and operating expenses	18,064	19,534
Segment contribution margin	46,069	49,937
Data Connectivity and Integration [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenue	6,596	7,113
Segment costs of revenue and operating expenses	2,901	3,250
Segment contribution margin	3,695	3,863
Application Development and Deployment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Segment revenue	18,752	4,797
Segment costs of revenue and operating expenses	8,811	9,384
Segment contribution margin	$ 9,941	$ (4,587)