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Consolidated Statements of Operations and Comprehensive Income (Unaudited) (Parenthetical) (USD $)
In Thousands
3 Months Ended 6 Months Ended
Jul. 30, 2011
Jul. 31, 2010
Jul. 30, 2011
Jul. 31, 2010
OTHER COMPREHENSIVE INCOME        
Gain on Marketable Securities tax $ (566) $ (2,128) $ (957) $ (1,965)
Unrealized gain on derivative financial instruments tax $ (1,644) $ 397 $ 263 $ (324)