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Reconciliation of Income Taxes At Federal Statutory Rate to Effective Rate (Detail)	12 Months Ended
	Jan. 28, 2018	Jan. 29, 2017	Jan. 31, 2016
Reconciliation of Statutory Federal Tax Rate [Line Items]
Federal income taxes at the statutory rate	33.90%	35.00%	35.00%
Re-measurement of deferred tax assets and liabilities	6.70%
Transition tax	2.90%
State income tax rate	2.50%	3.50%	3.20%
Change in uncertain tax positions	(1.60%)	2.80%	(0.10%)
Rate differential	(2.90%)	(5.70%)	(1.80%)
Other	1.10%	(0.30%)	0.20%
Effective tax rate	42.60%	35.30%	36.50%

X

- Definition

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

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 13
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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 attributable to changes in the income tax rates.

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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 attributable to other adjustments.

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Effective income tax rate reconciliation change in deferred tax assets and deferred tax liabilities.

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Effective Income Tax Rate Reconciliation Change In Uncertain Tax Positions

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Effective income tax rate reconciliation, transition tax, percent.

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Reconciliation of Statutory Federal Tax Rate [Line Items]

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