Summary of Stock-Settled Stock Appreciation Right Activity (Detail) (Stock-Settled Stock Appreciation Rights)	3 Months Ended
May 05, 2013
Stock-Settled Stock Appreciation Rights
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Balance at February 3, 2013, shares	2,527,784
Granted, shares	0
Converted into common stock, shares	(318,775)
Cancelled, shares	(28,775)
Balance at May 5, 2013, shares	2,180,234
Vested at May 5, 2013, shares	1,488,989
Vested plus expected to vest at May 5, 2013, shares	1,940,722

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph b(2)(c)

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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- Definition

Number of non-option equity instruments exercised by participants.

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- Definition

Number of shares under non-option equity instrument agreements that were either cancelled or expired.

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- Definition

Number of shares reserved for issuance under non-option equity instrument agreements awarded that validly exist and are outstanding, including vested instruments.

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- Definition

As of the balance sheet date, the number of shares of outstanding non-option equity instruments, vested and expected to vest.

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Number of non-option equity instruments vested as of the balance sheet date.

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