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Condensed Consolidated Statements of Comprehensive Income - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Aug. 01, 2015
Aug. 02, 2014
Aug. 01, 2015
Aug. 02, 2014
Statement of Comprehensive Income [Abstract]        
Net income $ 29,935 $ 27,253 $ 37,091 $ 29,048
Net gains (losses) from foreign currency translation (1,074) 11 (854) 75
Net unrealized holding gains (losses) on available-for-sale investments (3)   (5)  
Total comprehensive income $ 28,858 $ 27,264 $ 36,232 $ 29,123