Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Apr. 30, 2016	May. 02, 2015	Jan. 30, 2016
Income Tax Disclosure [Abstract]
Income tax expense (benefit)	$ (8,533,000)	$ 4,224,000
Effective income tax rate	38.80%	37.10%
Unrecognized tax benefits	$ 900,000		$ 900,000
Exposures related to unrecognized tax benefits	$ 0
Period of unrecognized tax benefits change	12 months