Fair Value Hierarchy for Financial Assets (Cash Equivalents and Investments) Measured at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	May 03, 2014	Feb. 01, 2014	May 04, 2013	Feb. 02, 2013
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	$ 327,699	$ 418,933	$ 383,175	$ 509,119
Short Term Investments	0	10,002	113,041
Total	327,699	428,935	496,216
Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	217,117	330,013	302,188
Money-market
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	88,535	25,696	54,954
Treasury bills
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	22,047	63,224	6,033
Short Term Investments		10,002	103,144
Term-deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short Term Investments			9,897
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents			20,000
Fair Value, Measurements, Recurring | Quoted Market Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	327,699		383,175
Short Term Investments			113,041
Total	327,699		496,216
Fair Value, Measurements, Recurring | Quoted Market Prices in Active Markets for Identical Assets (Level 1) | Cash
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	217,117		302,188
Fair Value, Measurements, Recurring | Quoted Market Prices in Active Markets for Identical Assets (Level 1) | Money-market
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	88,535		54,954
Fair Value, Measurements, Recurring | Quoted Market Prices in Active Markets for Identical Assets (Level 1) | Treasury bills
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents	22,047		6,033
Short Term Investments			103,144
Fair Value, Measurements, Recurring | Quoted Market Prices in Active Markets for Identical Assets (Level 1) | Term-deposits
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short Term Investments			9,897
Fair Value, Measurements, Recurring | Quoted Market Prices in Active Markets for Identical Assets (Level 1) | Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash and cash equivalents			$ 20,000