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Reconciliation of U.S. Federal Statutory Income Tax Rate and Worldwide Effective Income Tax Rate (Detail)	12 Months Ended
	Jan. 28, 2017	Jan. 30, 2016	Jan. 31, 2015
Schedule of Effective Tax Rate Reconciliation [Line Items]
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
Effective state income tax rate	3.50%	3.50%	3.60%
Impact of foreign operations	(0.20%)	(0.70%)	(0.90%)
All other		(0.10%)	(0.10%)
Worldwide effective income tax rate	38.30%	37.70%	37.60%

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Schedule of Effective Tax Rate Reconciliation [Line Items]

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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-Name Accounting Standards Codification
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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to statutory income tax expense (benefit) outside of the country of domicile.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations applicable to state and local income tax expense (benefit), net of federal tax expense (benefit).

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