Income Taxes (Summary Of Deferred Taxes) (Details) (USD $) In Thousands, unless otherwise specified	Nov. 30, 2014	Nov. 30, 2013
Income Tax Disclosure [Abstract]
Accounts receivable	$ 632	$ 739
Other current assets	762	779
Accrued compensation	2,666	3,901
Accrued liabilities and other	7,096	7,302
Stock-based compensation	4,558	4,222
Depreciation and amortization	0	6,724
Tax credit and loss carryforwards	30,769	34,460
Gross deferred tax assets	46,483us-gaap_DeferredTaxAssetsGross	58,127us-gaap_DeferredTaxAssetsGross
Valuation allowance	(9,687)	(12,949)
Total net deferred tax assets	36,796us-gaap_DeferredTaxAssetsNet	45,178us-gaap_DeferredTaxAssetsNet
Goodwill	(19,777)	(14,860)
Deferred revenue	(672)	(1,585)
Depreciation and amortization	(4,327)	0
Total deferred tax liabilities	(24,776)us-gaap_DeferredTaxLiabilities	(16,445)us-gaap_DeferredTaxLiabilities
Total	$ 12,020us-gaap_DeferredTaxAssetsLiabilitiesNet	$ 28,733us-gaap_DeferredTaxAssetsLiabilitiesNet

Deferred Tax Asset Depreciation And Amortization

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Deferred tax assets deferred expenses, account receivable.

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Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Compensation

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Depreciation and amortization

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards.

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Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards, net of deferred tax liability attributable to taxable temporary differences.

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The tax effect as of the balance sheet date of the amount of future tax deductions arising from all unused tax credit carryforwards which have been reduced by a valuation allowance.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities.

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Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount of deferred tax liability attributable to taxable temporary differences net of deferred tax asset attributable to deductible temporary differences and carryforwards after valuation allowances.

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Amount of deferred tax liability attributable to taxable temporary differences from goodwill.

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Amount of deferred tax liability attributable to taxable temporary differences from tax deferred revenue or other income not separately disclosed.

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