Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Significant Accounting Policies
Allowance for doubtful accounts	$ 500	$ 300	$ 500	$ 300
Revenue recorded related to gift card breakage	300	1,400	300	1,400
Deferred rent credit	16,200	13,800	16,200	13,800
Debt-issuance costs			500
Wrote off, interest expense			$ 263	407	$ 571
Debt instrument, term			5 years
Debt-issuance costs, net of accumulated amortization	800	500	$ 800	500
Amortization expense			$ 200	200	$ 200
Minimum
Significant Accounting Policies
Lease terms, years			5 years
Estimated useful lives, in years			3 years
Maximum
Significant Accounting Policies
Lease terms, years			10 years
Estimated useful lives, in years			5 years
Other Accrued Liabilities
Significant Accounting Policies
Deferred Rent Liability	11,500	8,900	$ 11,500	8,900
Deferred rent credit	2,300	1,800	2,300	1,800
Other Long Term Liabilities
Significant Accounting Policies
Deferred rent credit	$ 13,900	$ 12,000	$ 13,900	$ 12,000