Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jul. 30, 2016	Aug. 01, 2015	Jul. 30, 2016	Aug. 01, 2015	Jan. 30, 2016
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ 4,188,000	$ 19,082,000	$ (4,345,000)	$ 23,306,000
Effective income tax rate	37.70%	38.90%	39.90%	38.60%
Unrecognized tax benefits	$ 1,700,000		$ 1,700,000		$ 900,000
Exposures related to unrecognized tax benefits	$ 0		$ 0
Period of unrecognized tax benefits change			12 months