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Basis of Presentation (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended 12 Months Ended
Jan. 29, 2011
Oct. 29, 2011
statement
M
Feb. 02, 2013
week
Jan. 28, 2012
week
Jan. 29, 2011
week
Jan. 30, 2010
week
Basis of Presentation            
Number of weeks in fiscal year     53 52 52 52
Expiration period of unredeemed points (in months)   6        
Expiration period of unredeemed awards (in months)   2        
Cumulative adjustment to increase net revenue and to adjust the current liability balance to an amount reflecting estimated future award redemptions $ 6.7          
Aggregate dollar value of loyalty program accruals included in accrued liabilities $ 2.7 $ 2.2     $ 2.7  
Number of separate statements in which the entity is required to present comprehensive income   2