CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Apr. 28, 2012
Apr. 30, 2011
NET INCOME $ 37,809 $ 33,469
OTHER COMPREHENSIVE INCOME, NET OF TAX:    
Change in unrealized loss on investments (2) 21
Other comprehensive income (2) 21
COMPREHENSIVE INCOME $ 37,807 $ 33,490