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Revenue Recognition - Contract balances (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Oct. 31, 2020
Nov. 02, 2019
Oct. 31, 2020
Nov. 02, 2019
Feb. 01, 2020
Disaggregation of Revenue [Line Items]          
Right of return assets, which are included in prepaid expenses and other $ 2,323   $ 2,323   $ 1,683
Sales return liabilities, which are included in accrued expenses (3,467)   (3,467)   (2,512)
Gift breakage income 287 $ 235 809 $ 740  
Recognized customer loyalty program breakage income 820 $ 404 2,148 $ 1,064  
Recognized revenues relating to contract liabilities 1,428   $ 6,849    
Revenue from contract with customer liability recognition period     2 years    
Gift Card          
Disaggregation of Revenue [Line Items]          
Estimated contract liability, net of breakage (16,088)   $ (16,088)   (13,575)
Loyalty Reward Program          
Disaggregation of Revenue [Line Items]          
Estimated contract liability, net of breakage $ (8,654)   $ (8,654)   $ (9,621)