Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 03, 2018	Oct. 28, 2017	Nov. 03, 2018	Oct. 28, 2017	Feb. 03, 2018
Income Tax Disclosure [Abstract]
Income tax expense	$ 5,234	$ 6,216	$ 16,677	$ 9,886
Effective income tax rate	18.90%	32.10%	12.70%	83.70%
U.S. corporate income tax rate			21.00%		35.00%
Unrecognized tax benefits	$ 8,300		$ 8,300		$ 8,200
Tax expense and the effective tax rate, if recognized	7,200		7,200		$ 6,500
Exposures related to unrecognized tax benefits	$ 400		$ 400
Period of unrecognized tax benefits change			12 months