Tax Rate Reconciliations (Detail)	12 Months Ended
Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Schedule Of Effective Tax Rates Line Items
Tax at statutory rate (%)	35.00%	(35.00%)	35.00%
State income taxes, net of federal	5.80%	(9.50%)	8.90%
Change in valuation allowance	1.80%	14.80%	(2.30%)
Permanent items	(1.40%)	13.30%	0.50%
Tax credits	(11.70%)	(30.50%)	(2.60%)
Tax reserves	(14.10%)	(11.60%)	2.20%
Impact of Change in State Tax Laws and Rates	(2.10%)	9.00%
Foreign Taxes	(1.20%)	9.70%
Other	1.20%
Effective tax rate (%)	13.30%	(39.80%)	41.70%

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A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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The domestic federal statutory tax rate applicable under enacted tax laws to the Company's pretax income from continuing operations for the period. The "statutory" tax rate is the regular tax rate if there are alternative tax systems.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in the valuation allowance for deferred tax assets.

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The portion of the difference between total income tax expense or benefit as reported in the Income Statement and the expected income tax expense or benefit that is attributable to changes in the income tax laws or rates.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the difference between statutory income tax rates in foreign jurisdictions and the domestic federal statutory income tax rate recorded during the period.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to all other items not otherwise listed in the existing taxonomy.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate that can be explained by the state and local income tax expense or benefit, net of the federal tax benefit (expense) thereon, recorded during the period.

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The sum of the differences between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in all income tax contingencies, whether recorded or adjusted, during the period.

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The portion of the difference between the effective income tax rate and domestic federal statutory income tax rate attributable to changes in other income tax contingencies, whether recorded or adjusted, during the period not otherwise listed in the existing taxonomy.

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The sum of the differences between the effective income tax rate and domestic federal statutory income tax rate that can be explained by all tax credits generated or utilized under enacted tax laws during the period.

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