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Fair Value of Financial Assets and Liabilities on a Recurring Basis (Detail) - USD ($)
$ in Thousands
Aug. 01, 2015
Jan. 31, 2015
Aug. 02, 2014
Level 1 | Executive Savings Plan Investments      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair value measured on recurring basis, Assets $ 167,669 $ 151,936 $ 150,193
Level 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Foreign currency exchange contracts, Assets 26,203 39,419 7,650
Foreign currency exchange contracts, Liabilities 4,975 1,942 8,141
Level 2 | Diesel Fuel Contracts      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair value measured on recurring basis, Assets     273
Fair value measured on recurring basis, Liabilities 12,414 15,324  
Level 2 | Short-Term Investments      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair value measured on recurring basis, Assets $ 327,506 $ 282,623 $ 285,003