Quarterly report pursuant to Section 13 or 15(d)

Condensed Consolidated Statements of Net and Comprehensive Income (Unaudited) (Parenthetical)

v2.4.1.9
Condensed Consolidated Statements of Net and Comprehensive Income (Unaudited) (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Income Statement [Abstract]    
Unrealized gain on marketable securities, tax $ 126us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax $ 0us-gaap_OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax
Foreign currency translation gain, tax $ 117us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax $ 30us-gaap_OtherComprehensiveIncomeLossForeignCurrencyTranslationAdjustmentTax