Impact of Derivative Financial Instruments on Statements of Income (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 02, 2014	Aug. 03, 2013	Aug. 02, 2014	Aug. 03, 2013
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	$ 237	$ 9,579	$ (10,913)	$ 13,911
Intercompany Balances, Primarily Short-Term Debt And Related Interest | Fair Value Hedges | Selling, General And Administrative Expenses
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) recognized in income	3,936	(4,423)	3,878	1,863
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 (loss) recognized in income	(321)	2,206	905	(755)
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 (loss) recognized in income	$ (3,378)	$ 11,796	$ (15,696)	$ 12,803