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Retirement Benefits (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 02, 2013
Y
H
Jan. 28, 2012
Jan. 29, 2011
Supplemental Executive Retirement Plan Textuals [Line Items]      
Expense recorded to correct a cumulative under accrual of the SERP relating to prior periods     $ 2.1
Supplemental Employee Retirement Plan [Member]
     
Supplemental Executive Retirement Plan Textuals [Line Items]      
Retirement benefits, participant age requirement 21    
Retirement benefits, hours of service requirement (in hours) 1,000    
Contributions by employer 21.1 16.4 19.4
Percentage of monthly compensation benefit received by CEO as per SERP 50.00%    
Net expense related to Supplemental Executive Retirement Plan $ 3.9 $ 1.3 $ 2.7