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Fair Value of Financial Assets and Liabilities on a Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Aug. 02, 2014	Feb. 01, 2014	Aug. 03, 2013
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	$ 150,193	$ 131,049	$ 122,359
Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Fair value measured on recurring basis, Assets	7,650	19,482	5,864
Fair value measured on recurring basis, Liabilities	8,141	6,107	12,778
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	137	1,443
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	$ 285,003	$ 294,702	$ 231,213

Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

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