Divestitures (Narrative) (Details) (USD $)	12 Months Ended			1 Months Ended	12 Months Ended	1 Months Ended	3 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011	Jul. 31, 2013 Apama [Member]	Nov. 30, 2013 Apama [Member]	Feb. 28, 2013 Artix, Orbacus and Orbix [Member]	Nov. 30, 2012 Artix, Orbacus and Orbix [Member]	Nov. 30, 2012 Artix, Orbacus and Orbix [Member]	Nov. 30, 2013 Artix, Orbacus and Orbix [Member]	Dec. 31, 2012 Actional, DataXtend, ObjectStore, Savvion, and Sonic [Member]	Nov. 30, 2013 Actional, DataXtend, ObjectStore, Savvion, and Sonic [Member]	Oct. 31, 2012 Shadow [Member]	Nov. 30, 2012 Shadow [Member]	Sep. 30, 2012 FuseSource [Member]	Nov. 30, 2012 FuseSource [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase price				$ 44,268,000	$ 44,268,000	$ 15,000,000				$ 60,500,000	$ 60,500,000		$ 31,903,000	$ 21,300,000	$ 21,300,000
Consideration held in escrow				4,500,000								3,300,000		2,100,000
Period to be held in Escrow				18 months
Distributor license agreement term					3 years
Reduction of total sales price				700,000
Impairment loss	0	8,601,000	0				8,600,000	8,601,000
Indemnification obligation, maximum potential exposure						1,000,000
Indemnification obligation, maximum potential exposure									30,000
Total consideration												33,000,000
Months held In escrow												15 months		15 months
Reduction of total sales price												$ 1,100,000
Distributor license agreement term												3 years