Divestitures (Gain on Sale) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended			1 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]	Nov. 30, 2012 Apama [Member]	Nov. 30, 2011 Apama [Member]	Feb. 28, 2013 Artix, Orbacus and Orbix [Member]	Nov. 30, 2013 Artix, Orbacus and Orbix [Member]	Nov. 30, 2012 Artix, Orbacus and Orbix [Member]	Nov. 30, 2011 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]	Nov. 30, 2012 Actional, DataXtend, ObjectStore, Savvion, and Sonic [Member]	Nov. 30, 2011 Actional, DataXtend, ObjectStore, Savvion, and Sonic [Member]	Nov. 30, 2013 Shadow [Member]	Nov. 30, 2012 Shadow [Member]	Nov. 30, 2011 Shadow [Member]	Sep. 30, 2012 FuseSource [Member]	Nov. 30, 2013 FuseSource [Member]	Nov. 30, 2012 FuseSource [Member]	Nov. 30, 2011 FuseSource [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Purchase price				$ 44,268	$ 44,268			$ 15,000				$ 60,500	$ 60,500				$ 31,903		$ 21,300		$ 21,300
Less: transaction costs					2,029			826					1,211				1,264
Less: indemnification obligation								30
Less: net assets sold
Accounts receivable					2,426			2,872					12,380				1,592				2,749
Other current assets					428
Goodwill and intangible assets					6,991			24,325					31,693				10,540				3,690
Other assets								20					976				103				167
Other long-term assets					426
Impairment reserve								(8,601)
Deferred revenue					(3,917)			(6,481)					(19,168)				(6,859)				(5,148)
Other liabilities													(299)
Gain on sale	71,601	45,105	0		35,885			2,009					33,707				25,263				19,842
Tax provision					13,815			0					15,349				12,571				8,655
Gain on sale, net of tax		$ 11,187			$ 22,070	$ 0	$ 0	$ 2,009	$ 2,009	$ 0	$ 0		$ 18,358	$ 0	$ 0	$ 0	$ 12,692	$ 0		$ 0	$ 11,187	$ 0