Income Taxes - Summary of Unrecognized Tax Benefits (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Jan. 30, 2015	Jan. 31, 2014	Feb. 01, 2013	Apr. 04, 2014
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross UTB balance at beginning of period	$ 8,718us-gaap_UnrecognizedTaxBenefits	$ 8,507us-gaap_UnrecognizedTaxBenefits	$ 8,209us-gaap_UnrecognizedTaxBenefits	$ 8,800us-gaap_UnrecognizedTaxBenefits
Tax positions related to the current period—gross increases	364	252	298
Tax positions related to the prior periods—gross decreases	0	(41)	0
Settlements	0	0	0
Lapse of statutes of limitations	0	0	0
Gross UTB balance at end of period	$ 9,082us-gaap_UnrecognizedTaxBenefits	$ 8,718us-gaap_UnrecognizedTaxBenefits	$ 8,507us-gaap_UnrecognizedTaxBenefits	$ 8,800us-gaap_UnrecognizedTaxBenefits

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

+ References

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Amount of increase in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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