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Segment Reporting Narrative (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 6 Months Ended
Jul. 30, 2011
segment
method
Jul. 31, 2010
Jul. 30, 2011
segment
method
Jul. 31, 2010
Segment Reporting Information [Line Items]        
Number Of Reportable Segments 2   2  
Number Of Distribution Methods 2   2  
Number of Non-Reportable Operating Segments 2   2  
Shipping, Handling and Transportation Costs $ 4.4 $ 3.2 $ 7.3 $ 5.5