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Condensed Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Apr. 28, 2012
Apr. 30, 2011
Condensed Consolidated Statements Of Comprehensive Income [Abstract]    
Unrealized losses on derivative financial instruments, tax $ 136 $ 51
Net (income) loss from derivatives reclassified into earnings, tax $ 9 $ 5