Vesting period of stock unit awards granted to non-employee directors.

No definition available.

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- Definition

Remaining Number Of Shares Which Would Be Settled In Cash

+ References

No definition available.

+ Details

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested and Unsettled Units

+ References

No definition available.

+ Details

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- Definition

Share Based Compensation Arrangement By Share Based Payment Award, Number Of Shares Earned

+ References

No definition available.

+ Details

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- Definition

Share Based Compensation Arrangement Grants In Period Percentage Within Current Year

+ References

No definition available.

+ Details

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- Definition

Target performance metrics for performance unit awards, next fiscal year.

+ References

No definition available.

+ Details

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- Definition

Share Based Compensation Arrangement Grants In Period Percentage Within Previous Year

+ References

No definition available.

+ Details

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- Definition

Description of the period of time over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, which may be expressed in a variety of ways (for example, in years, month and year).

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph a

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(1)

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

+ Details

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- Definition

The maximum vesting term over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition.

+ References

No definition available.

+ Details

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- Definition

The minimum vesting term over which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition.

+ References

No definition available.

+ Details

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- Definition

The maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 123R

-Paragraph A240

-Subparagraph a

-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.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (a)(3)

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

+ Details

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Stock-Based Compensation (Narrative) (Details)	6 Months Ended
Stock-Based Compensation (Narrative) (Details)	Jul. 29, 2012	Jan. 27, 2013	Jan. 29, 2012	Jan. 30, 2011	Jan. 31, 2010	Jan. 25, 2009
Performance Unit Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
The maximum number of shares earned for performance unit awards	696,400
The maximum number of shares issued for performance unit awards	353,200
Remaining number of shares which would be settled in cash	343,200
Target performance metrics for performance unit awards, fiscal year 2013	100.00%
Target performance metrics for performance unit awards, fiscal year 2012	108.00%
Target performance metrics for performance unit awards, fiscal year 2011	200.00%
Employee Stock Unit Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years
Non-Employee Directors Stock Unit Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	1 year
Vested but unsettled stock units		17,752	29,820	30,282	35,476	27,825
Minimum [Member] \| Stock Option Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period minimum, years	3
Minimum [Member] \| Restricted Stocks [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period minimum, years	3
Maximum [Member] \| Stock Option Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period maximum, years	4
Maximum [Member] \| Restricted Stocks [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period maximum, years	4