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Investments (Textuals) (Details) (USD $)
12 Months Ended
Jan. 28, 2012
Jan. 29, 2011
Jan. 30, 2010
Investment [Line Items]      
Held-to-maturity Securities, Debt Maturity, Date Range, High 31 years    
Held-to-maturity Securities, Debt Maturity, Date Range, Low 16 years    
Realized gains resulted from the change in cash surrender value of insurance policies $ 2,500,000 $ 2,300,000  
Equity Method Investment, Other than Temporary Impairment 13,400,000    
Payments to Acquire Life Insurance Policies 0 16,583,000 13,539,000
Municipal Notes [Member]
     
Investment [Line Items]      
Sale of Municipal Notes and Bonds 11,600,000    
Life Insurance Segment [Member]
     
Investment [Line Items]      
Payments to Acquire Investments $ 12,300,000