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Summary of Significant Accounting Policies - Summary of Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Feb. 01, 2019	Feb. 02, 2018
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 375,838	$ 345,947
Accumulated depreciation	(218,173)	(196,053)
Total property and equipment, net	157,665	149,894	$ 136,502
Land
Property Plant And Equipment [Line Items]
Gross property and equipment	3,459	3,459
Buildings and improvements
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 100,269	99,400
Buildings and improvements | Minimum
Property Plant And Equipment [Line Items]
Asset lives of property and equipment	15 years
Buildings and improvements | Maximum
Property Plant And Equipment [Line Items]
Asset lives of property and equipment	30 years
Furniture, fixtures and equipment
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 59,731	62,823
Furniture, fixtures and equipment | Minimum
Property Plant And Equipment [Line Items]
Asset lives of property and equipment	3 years
Furniture, fixtures and equipment | Maximum
Property Plant And Equipment [Line Items]
Asset lives of property and equipment	10 years
Computer hardware and software
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 181,160	146,400
Computer hardware and software | Minimum
Property Plant And Equipment [Line Items]
Asset lives of property and equipment	3 years
Computer hardware and software | Maximum
Property Plant And Equipment [Line Items]
Asset lives of property and equipment	10 years
Leasehold improvements
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 8,423	6,569
Leasehold improvements | Minimum
Property Plant And Equipment [Line Items]
Asset lives of property and equipment	3 years
Leasehold improvements | Maximum
Property Plant And Equipment [Line Items]
Asset lives of property and equipment	7 years
Construction in progress
Property Plant And Equipment [Line Items]
Gross property and equipment	$ 22,796	$ 27,296

X

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Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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