v2.4.1.9
Income Taxes (Details) - Deferred Tax Assets and Liabilities (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Current:    
Deferred revenue $ 35,477us-gaap_DeferredTaxAssetsDeferredIncome $ 32,643us-gaap_DeferredTaxAssetsDeferredIncome
Noncurrent:    
Intangibles - other 11,275us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets 12,138us-gaap_DeferredTaxAssetsGoodwillAndIntangibleAssets
Net operating loss carryforwards 48,433us-gaap_DeferredTaxAssetsOperatingLossCarryforwards 39,757us-gaap_DeferredTaxAssetsOperatingLossCarryforwards
Stock-based compensation 3,773us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost 1,999us-gaap_DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost
Other 4,930us-gaap_DeferredTaxAssetsOther 4,337us-gaap_DeferredTaxAssetsOther
Total deferred tax assets 103,888us-gaap_DeferredTaxAssetsGross 90,874us-gaap_DeferredTaxAssetsGross
Valuation allowance (89,271)us-gaap_DeferredTaxAssetsValuationAllowance (87,006)us-gaap_DeferredTaxAssetsValuationAllowance
Total net deferred tax assets 14,617us-gaap_DeferredTaxAssetsNet 3,868us-gaap_DeferredTaxAssetsNet
Current:    
Prepaid expenses (4,806)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses (3,923)us-gaap_DeferredTaxLiabilitiesPrepaidExpenses
Noncurrent:    
Property, equipment and software (9,811)us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment 55us-gaap_DeferredTaxLiabilitiesPropertyPlantAndEquipment
Goodwill (181)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill (169)us-gaap_DeferredTaxLiabilitiesGoodwillAndIntangibleAssetsGoodwill
Total net deferred tax liabilities (14,798)us-gaap_DeferredIncomeTaxLiabilities (4,037)us-gaap_DeferredIncomeTaxLiabilities
Total net deferred tax liability $ (181)us-gaap_DeferredTaxLiabilities $ (169)us-gaap_DeferredTaxLiabilities