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Summary of Significant Accounting Policies - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 30, 2016 USD ($)	Aug. 01, 2015 USD ($)	Jul. 30, 2016 USD ($) segment	Aug. 01, 2015 USD ($)	Jan. 30, 2016 USD ($)
Accounting Policies [Abstract]
Fiscal period duration			364 days		364 days
Number of reportable segment | segment			1
Deferred financing fees reclassified from prepaid expenses to current portion of long-term debt, net of discount and debt issuance costs	$ 983		$ 983		$ 8,683
Deferred financing fees reclassified from other long-term Assets, net to long-term debt, net	134,028		134,028		146,333
Deferred income taxes, noncurrent	4,976		4,976		$ 2,263
Income tax expense	$ 5,226	$ 5,138	3,683	$ 4,286
Excess tax benefits related to vesting of restricted stock units			$ 449	$ 283

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, netted by jurisdiction and classified as noncurrent.

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