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Summary of Significant Accounting Policies - Schedule of Impact of Adoption of New Lease Guidance on Condensed Consolidated Balance Sheets (Details) - USD ($)
$ in Thousands
Jan. 31, 2020
Feb. 02, 2019
Feb. 01, 2019
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Operating lease right-of-use asset $ 38,665    
Lease liability - current 5,864    
Lease liability - long-term 39,841    
Accumulated deficit $ 390   $ (17,159)
Accounting Standards Update 2016-02      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Operating lease right-of-use asset   $ 27,494  
Lease liability - current   9,892  
Lease liability - long-term   21,700  
Accumulated deficit   (18,900)  
Accounting Standards Update 2016-02 | Impact of Adoption      
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]      
Operating lease right-of-use asset   27,494  
Lease liability - current   9,892  
Lease liability - long-term   21,700  
Accumulated deficit   $ (1,741)