Income Taxes - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
May 05, 2013
Income Tax [Line Items]
Unrecognized tax benefits, accrued	$ 588
Penalties and interest, accrued	301
Unrecognized tax benefits if recognized, would impact the effective tax rate	509
Tax related balances	5,015
Income tax payable	2,123
Available stand alone tax credits	3,177
Federal
Income Tax [Line Items]
Change in valuation allowance	$ 1,160

The amount of the tax credit carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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This element represents the total of accruals as of the date of the statement of financial position for interest recognized for an underpayment of income taxes computed by applying the applicable statutory rate of interest to the difference between a tax position recognized for financial reporting purposes and the amount previously taken or expected to be taken in a tax return of the entity and the amount of statutory penalties for a tax position claimed or expected to be claimed by the entity, in its tax return, that does not meet the minimum statutory threshold to avoid payment of penalties.

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- Definition

The amount of the change in the period in the valuation allowance for a specified deferred tax asset.

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