Retirement Benefits (Details) (USD $)
12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Retirement Benefits [Abstract]      
Defined Contribution Plan, Cost Recognized, Employer Match $ 2,600,000 $ 2,700,000 $ 400,000
Defined Contribution Plan, Cost Recognized, Discretionary Contribution 5,400,000 6,100,000  
Maximum Number of Years for Non-Qualified Plan Payout 10 years    
Pension and Other Postretirement Benefit Expense 3,600,000 2,500,000 1,200,000
Defined Benefit Plan Liability [Roll Forward]      
Balance, beginning of period 14,240,000 10,733,000  
Employee contributions 2,487,000 1,401,000  
Company contributions 2,379,000 1,397,000  
Nonqualified Plan Interest 1,239,000 960,000  
Distributions (1,151,000) (211,000)  
Forfeitures (24,000) (40,000)  
Balance, end of period $ 19,170,000 $ 14,240,000 $ 10,733,000