Property and Equipment - Summary of Property and Equipment (Detail) - USD ($) $ in Thousands	Jan. 28, 2017	Jan. 30, 2016
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 265,771	$ 240,020
Less: Accumulated depreciation	(154,901)	(134,478)
Property and equipment, net	110,870	105,542
Equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	72,265	65,579
Furniture and Fixtures [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	78,492	70,908
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	109,494	97,622
Projects in Progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment, gross	$ 5,520	$ 5,911