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Condensed Consolidated Statements of Comprehensive Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 28, 2013
Jun. 29, 2012
Jun. 28, 2013
Jun. 29, 2012
Net income $ 10,848 $ 10,327 $ 18,824 $ 18,528
Other comprehensive income (loss):        
Foreign currency translation adjustments, net of tax 24 (267) (437) (79)
Unrealized (loss) gain on investments, net of tax (10) (14) (22) 12
Comprehensive income $ 10,862 $ 10,046 $ 18,365 $ 18,461