Additional amount authorized under the share repurchase program of common stock.

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- Definition

Treasury Stock.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The amount authorized by an entity's Board of Directors under a stock repurchase plan.

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The remaining repurchase amount authorized by an entity's Board of Directors under a stock repurchase plan.

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
-Section B
-Paragraph 7
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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Number of shares held for each class of treasury stock.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
-Chapter 1
-Section B
-Paragraph 7, 11A
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655

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Number of shares that have been repurchased during the period and are being held in treasury.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
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-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 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 29, 30
-Article 5

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- Definition

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
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-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 4: http://www.xbrl.org/2003/role/presentationRef
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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 43
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-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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Treasury Stock (Details Textuals) (USD $)	6 Months Ended		12 Months Ended
Treasury Stock (Details Textuals) (USD $)	Jul. 30, 2011	Jul. 31, 2010	Jan. 29, 2011	Feb. 03, 2007	Jan. 28, 2006	Jan. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock repurchased, cost	$ 48,999,000	$ 144,000
Shares repurchased	1,829,472	7,134	7,134
Average price per share of stock repurchased	$ 26.78	$ 20.24
Treasury Stock (Textuals) [Abstract]
Number of shares held in treasury stock	19,947,822		18,118,350			18,111,602
Authorized share repurchase program	150,000,000			100,000,000	100,000,000
Authorized repurchase of common stock				90,300,000
Remaining balance available	101,200,000			9,700,000
Subsequent Purchases [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock repurchased, cost	15,000,000
Shares repurchased	500,000
Average price per share of stock repurchased	$ 29.98
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock repurchased, cost	200,000	100,000
Shares repurchased	7,132	7,134
Average price per share of stock repurchased	$ 27.77	$ 20.24
Common Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock repurchased, cost	$ 48,800,000
Shares repurchased	1,822,340	0
Average price per share of stock repurchased	$ 26.78