Investments in debt and equity securities which are categorized neither as held-to-maturity nor trading and which are intended to be sold or mature more than one year from the balance sheet date or operating cycle, if longer. Such securities are reported at fair value; unrealized gains (losses) related to Available-for-sale Securities are excluded from earnings and reported in a separate component of shareholders' equity (other comprehensive income), unless the Available-for-sale security is designated as a hedge or is determined to have had an other than temporary decline in fair value below its amortized cost basis. All or a portion of the unrealized holding gain (loss) of an Available-for-sale security that is designated as being hedged in a fair value hedge is recognized in earnings during the period of the hedge, as are other than temporary declines in fair value below the cost basis for investments in equity securities and debt securities that an entity intends to sell or it is more likely than not that it will be required to sell before the recovery of its amortized cost basis. Other than temporary declines in fair value below the cost basis for debt securities categorized as Available-for-sale that an entity does not intend to sell and for which it is not more likely than not that the entity will be required to sell before the recovery of its amortized cost basis are bifurcated into credit losses and losses related to all other factors. Other than temporary declines in fair value below cost basis related to credit losses are recognized in earnings, and losses related to all other factors are recognized in other comprehensive income.

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+ Details

- Definition

Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 1

-Article 5

+ Details

Fair Market Values for Cash and Marketable Securities (Detail) (USD $) In Thousands, unless otherwise specified	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011	Jan. 29, 2010
Cash and cash equivalents:
Cash and cash equivalents	$ 509,119	$ 719,545	$ 667,593	$ 693,960
Short-term investments:
Short-term investments	121,873	25,499
Fair Value, Measurements, Recurring
Cash and cash equivalents:
Cash and cash equivalents	509,119	719,545
Short-term investments:
Short-term investments	121,873	25,499
Long-term investments:
Long-term investments		847
Total	630,992	745,891
Fair Value, Measurements, Recurring \| Cash
Cash and cash equivalents:
Cash and cash equivalents	257,191	548,728
Fair Value, Measurements, Recurring \| Money-market
Cash and cash equivalents:
Cash and cash equivalents	221,929	131,785
Fair Value, Measurements, Recurring \| Commercial paper
Cash and cash equivalents:
Cash and cash equivalents	29,999	29,998
Fair Value, Measurements, Recurring \| Treasury bills
Cash and cash equivalents:
Cash and cash equivalents		9,034
Short-term investments:
Short-term investments	109,305	19,999
Fair Value, Measurements, Recurring \| Term-deposits
Short-term investments:
Short-term investments	12,568
Fair Value, Measurements, Recurring \| ARS Call Option
Long-term investments:
Long-term investments		847
Fair Value, Measurements, Recurring \| ARS \| State and local government
Short-term investments:
Short-term investments		$ 5,500