Divestitures (Income (Loss) from Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified	1 Months Ended	12 Months Ended
Feb. 28, 2013	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2011
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue			$ 81,576
Gain on sale, net of tax			11,187
Income (loss) from discontinued operations, net		35,130	2,490	(11,760)
Apama [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		10,550	17,593	27,094
Income (loss) before income taxes		(12,482)	(18,348)	(7,469)
Income tax provision (benefit)		(3,152)	(5,998)	(2,422)
Gain on sale, net of tax		22,070	0	0
Income (loss) from discontinued operations, net		12,740	(12,350)	(5,047)
Artix, Orbacus and Orbix [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		5,786	28,942	33,983
Income (loss) before income taxes		2,625	6,003	13,237
Income tax provision (benefit)		(130)	3,562	3,596
Gain on sale, net of tax	2,009	2,009	0	0
Income (loss) from discontinued operations, net		4,764	2,441	9,641
Actional, DataXtend, ObjectStore, Savvion, and Sonic [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		(450)		107,821
Income (loss) before income taxes		(980)	(18,314)	(27,484)
Income tax provision (benefit)		(248)	(6,234)	(10,067)
Gain on sale, net of tax		18,358	0	0
Income (loss) from discontinued operations, net		17,626	(12,080)	(17,417)
Shadow [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		0	12,518	16,267
Income (loss) before income taxes		0	4,882	4,067
Income tax provision (benefit)		0	164	1,079
Gain on sale, net of tax		0	12,692	0
Income (loss) from discontinued operations, net		0	17,410	2,988
FuseSource [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Revenue		0	14,484	14,820
Income (loss) before income taxes		0	(7,118)	(2,840)
Income tax provision (benefit)		0	(3,000)	(915)
Gain on sale, net of tax		0	11,187	0
Income (loss) from discontinued operations, net		$ 0	$ 7,069	$ (1,925)

Amount of gain (loss), after tax expense or benefit and not previously recognized, resulting from the sale of a business component.

+ References+ Details

Overall income (loss) from a disposal group that is classified as a component of the entity, before income tax, reported as a separate component of income before extraordinary items. Includes the following (before income tax): income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

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- Definition

Tax effect allocated to a disposal group that is classified as a component of the entity reported as a separate component of income before extraordinary items. Includes the tax effects of the following: income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Reference 2: http://www.xbrl.org/2003/role/presentationRef

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 47

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 109

-Paragraph 46

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 144

-Paragraph 43

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Amount of income (loss) from a disposal group, net of income tax, reported as a separate component of income before extraordinary items after deduction or consideration of the amount allocable to noncontrolling interests. Includes, net of tax, income (loss) from operations during the phase-out period, gain (loss) on disposal, provision (or any reversals of earlier provisions) for loss on disposal, and adjustments of a prior period gain (loss) on disposal.

+ References+ Details