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v2.4.1.9

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013
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Deferred tax assets (liabilities): |  |
Deferred revenue | $ 12,639 us-gaap_DeferredTaxAssetsDeferredIncome | $ 11,074 us-gaap_DeferredTaxAssetsDeferredIncome
Stock compensation | 6,287 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost | 7,447 us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Inventory related items | 2,713 us-gaap_DeferredTaxAssetsInventory | 2,947 us-gaap_DeferredTaxAssetsInventory
Tax credit carry forwards | 2,168 us-gaap_DeferredTaxAssetsTaxCreditCarryforwards | 3,160 us-gaap_DeferredTaxAssetsTaxCreditCarryforwards
Reserves and accruals | 327 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals | 0 us-gaap_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccruals
Loss carry forwards | 12 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards | 64 us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Other, net | 0 us-gaap_DeferredTaxAssetsOther | 5 us-gaap_DeferredTaxAssetsOther
Subtotal | 24,146 us-gaap_DeferredTaxAssetsGross | 24,697 us-gaap_DeferredTaxAssetsGross
Less: valuation allowance | 0 us-gaap_DeferredTaxAssetsValuationAllowance | (39)us-gaap_DeferredTaxAssetsValuationAllowance
Total net deferred tax assets | 24,146 us-gaap_DeferredTaxAssetsNet | 24,658 us-gaap_DeferredTaxAssetsNet
Intangibles | (26,485)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets | (26,604)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsIntangibleAssets
Depreciation and amortization | (14,331)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment | (12,077)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Reserves and accruals | 0 us-gaap_DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals | (353)us-gaap_DeferredTaxLiabilitiesDeferredExpenseReservesAndAccruals
Other, net | (194)us-gaap_DeferredTaxLiabilitiesOther | 0 us-gaap_DeferredTaxLiabilitiesOther
Total deferred tax liabilities | (41,010)us-gaap_DeferredIncomeTaxLiabilities | (39,034)us-gaap_DeferredIncomeTaxLiabilities
Net deferred tax liabilities | $ (16,864)us-gaap_DeferredTaxLiabilities | $ (14,376)us-gaap_DeferredTaxLiabilities

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