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Employee Benefit Plans - Stock Option Activity (Detail) (USD $)	12 Months Ended
	Feb. 01, 2014
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of Options, Beginning balance	1,417,906
Number of Options, Options granted	200,000
Number of Options, Options exercised	(317,114)
Number of Options, Options forfeited	(15,000)
Number of Options, Ending balance	1,285,792
Number of Options, Exercisable	890,802
Weighted Average Exercise Price, Beginning balance	$ 11.07
Weighted Average Exercise Price, Options granted	$ 15.79
Weighted Average Exercise Price, Options exercised	$ 11.08
Weighted Average Exercise Price, Options forfeited	$ 13.43
Weighted Average Exercise Price, Ending balance	$ 11.77
Weighted Average Exercise Price, Exercisable	$ 10.71
Weighted Average Remaining Contractual Term (in years), Outstanding	6 years 3 months 18 days
Weighted Average Remaining Contractual Term (in years), Exercisable	5 years 4 months 24 days

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- Definition

Share based compensation arrangement by share based payment award, options, outstanding, weighted average remaining contractual terms.

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Share based compensation arrangement share based payment award options exercisable weighted average remaining contractual terms.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Number of share options (or share units) exercised during the current period.

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