Summary of Significant Accounting Policies - Summary of Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Feb. 02, 2018	Jan. 27, 2017	Jan. 29, 2016
Property, Plant and Equipment [Line Items]
Depreciation and amortization	$ 24,910	$ 19,003	$ 17,399
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property and equipment	329,688	308,791
Accumulated depreciation	(193,187)	(185,955)
Total property and equipment, net	136,501	122,836
Land
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property and equipment	3,533	3,466
Buildings and improvements
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property and equipment	$ 100,122	98,213
Buildings and improvements | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Asset lives of property and equipment	15 years
Buildings and improvements | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Asset lives of property and equipment	30 years
Furniture, fixtures and equipment
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property and equipment	$ 69,940	78,563
Furniture, fixtures and equipment | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Asset lives of property and equipment	3 years
Furniture, fixtures and equipment | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Asset lives of property and equipment	10 years
Computer hardware and software
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property and equipment	$ 122,336	82,491
Computer hardware and software | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Asset lives of property and equipment	3 years
Computer hardware and software | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Asset lives of property and equipment	10 years
Leasehold improvements
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property and equipment	$ 10,329	11,176
Leasehold improvements | Minimum
Property, Plant and Equipment, Net, by Type [Abstract]
Asset lives of property and equipment	3 years
Leasehold improvements | Maximum
Property, Plant and Equipment, Net, by Type [Abstract]
Asset lives of property and equipment	7 years
Construction in Progress
Property, Plant and Equipment, Net, by Type [Abstract]
Gross property and equipment	$ 23,428	$ 34,882
Enterprise Resource Planning [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Additions	$ 35,500