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Impact of Derivative Financial Instruments on Statements of Income (Detail) (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 6 Months Ended
Aug. 03, 2013
Jul. 28, 2012
Aug. 03, 2013
Jul. 28, 2012
Derivative Instruments, Gain (Loss) [Line Items]        
Gain recognized in income $ 9,579 $ 15,312 $ 13,911 $ 11,111
Intercompany Balances, Primarily Short-Term Debt And Related Interest | Fair Value Hedges | Selling, General And Administrative Expenses
        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain recognized in income (4,423) 9,613 1,863 13,265
Diesel Fuel Contracts | Economic Hedges For Which Hedge Accounting Was Not Elected | Cost Of Sales, Including Buying And Occupancy Costs
        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain recognized in income 2,206 (3,218) (755) (668)
Merchandise Purchase Commitments | Economic Hedges For Which Hedge Accounting Was Not Elected | Cost Of Sales, Including Buying And Occupancy Costs
        
Derivative Instruments, Gain (Loss) [Line Items]        
Gain recognized in income $ 11,796 $ 8,917 $ 12,803 $ (1,486)