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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME    
Net income $ 9,665 $ 4,864
Foreign currency translation gain (loss) (net of tax) 178 (1,886)
Net unrealized gains on investment securities (net of tax) 3 24
Total comprehensive income $ 9,846 $ 3,002