Income Taxes - Components of Deferred Tax Assets and Liabilities (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Dec. 31, 2013
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Deferred Tax Assets, Gross [Abstract] | ||
Net operating loss carryforwards | $ 166,150us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | $ 168,431us-gaap_DeferredTaxAssetsOperatingLossCarryforwards |
Tax credit carryforwards | 25,052us-gaap_TaxCreditCarryforwardAmount | 22,507us-gaap_TaxCreditCarryforwardAmount |
Depreciation and Amortization | 1,275us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment | 2,996us-gaap_DeferredTaxAssetsPropertyPlantAndEquipment |
Accruals and reserves | 13,810us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities | 11,479us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities |
Deferred revenue | 9,930us-gaap_DeferredTaxAssetsDeferredIncome | 12,037us-gaap_DeferredTaxAssetsDeferredIncome |
Stock-based compensation | 5,138us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | 5,570us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost |
Other | 498us-gaap_DeferredTaxAssetsOther | 450us-gaap_DeferredTaxAssetsOther |
Gross deferred tax assets | 221,853us-gaap_DeferredTaxAssetsGross | 223,470us-gaap_DeferredTaxAssetsGross |
Valuation allowance | (212,703)us-gaap_DeferredTaxAssetsValuationAllowance | (207,315)us-gaap_DeferredTaxAssetsValuationAllowance |
Net deferred tax assets | 9,150us-gaap_DeferredTaxAssetsNet | 16,155us-gaap_DeferredTaxAssetsNet |
Deferred Tax Liabilities, Gross [Abstract] | ||
Intangible assets | (8,995)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets | (15,988)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets |
Net deferred tax assets reflected in balance sheet | 155us-gaap_DeferredTaxAssetsLiabilitiesNet | 167us-gaap_DeferredTaxAssetsLiabilitiesNet |
Deferred Tax Assets, Net [Abstract] | ||
Deferred tax assets, current | 785us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent | 0us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent |
Deferred tax assets, long-term | 155us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent | 167us-gaap_DeferredTaxAssetsLiabilitiesNetNoncurrent |
Deferred tax liabilities, long-term | $ (785)us-gaap_DeferredTaxLiabilitiesNoncurrent | $ 0us-gaap_DeferredTaxLiabilitiesNoncurrent |
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from deferred income. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
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. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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 expected to be realized or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
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 expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount after allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences not separately disclosed. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from property, plant, and equipment. No definition available.
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from accrued liabilities. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences from intangible assets other than goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of deferred tax liability attributable to taxable temporary differences, net of deferred tax asset attributable to deductible temporary differences and carryforwards net of valuation allowances expected to be realized or consumed after one year (or the normal operating cycle, if longer). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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