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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
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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)

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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5618551-113959 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a),(c),(d),(e) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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