v2.4.1.9
Prepaid Expenses and Other Current Assets (Details) - Prepaid Expenses and Other Current Assets (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Prepaid Expense and Other Assets, Current [Abstract]    
Prepaid and deferred commissions $ 11,378us-gaap_DeferredSalesCommission $ 9,395us-gaap_DeferredSalesCommission
Other prepaid expenses and current assets 6,742us-gaap_OtherAssetsCurrent 4,306us-gaap_OtherAssetsCurrent
Total prepaid expenses and other current assets $ 18,120us-gaap_PrepaidExpenseAndOtherAssetsCurrent $ 13,701us-gaap_PrepaidExpenseAndOtherAssetsCurrent