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Summary of Significant Accounting Policies - Contract Balances (Details) - USD ($)
$ in Thousands
12 Months Ended
Feb. 02, 2019
Feb. 03, 2018
Jan. 28, 2017
Summary of Significant Accounting Policies      
Right of return assets, which are included in prepaid expenses and other $ 1,496    
Estimated contract liabilities, net of breakage (20,298)    
Sales return liabilities, which are included in accrued expenses 2,233    
Gift breakage income 1,007 $ 1,337 $ 347
Recognized customer loyalty program breakage income $ 1,439 $ 1,022 $ 611