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Fair Value of Financial Assets and Liabilities on a Recurring Basis (Detail) - USD ($)
$ in Thousands
Apr. 30, 2016
Jan. 30, 2016
May. 02, 2015
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 $ 173,523 $ 155,847 $ 166,911
Level 2      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Foreign currency exchange contracts, Assets 8,100 28,643 11,865
Foreign currency exchange contracts, Liabilities 37,333 3,455 9,998
Level 2 | Diesel Fuel Contracts      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Fair value measured on recurring basis, Liabilities 4,875 13,952 7,311
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 $ 403,702 $ 352,313 $ 328,826