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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Statement Of Income And Comprehensive Income [Abstract]        
Net income $ 3,322 $ 4,509 $ 7,917 $ 13,581
Other comprehensive income-Cumulative translation adjustment 3,498 1,703 1,231 (277)
Comprehensive income $ 6,820 $ 6,212 $ 9,148 $ 13,304