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Summary of Significant Accounting Policies - Gift Card Reconciliation (Details) - USD ($)
$ in Thousands
 12 Months Ended
Jan. 31, 2020
Feb. 01, 2019
Gift Cards [Line Items]    
Gift card liability at beginning of period $ 18,191 $ 19,272
Gift cards sold 65,662 57,465
Gift cards redeemed (60,043) (56,502)
Gift card breakage (1,218) (984)
Gift card liability at ending of period $ 22,592 18,191
Adjustments for New Accounting Pronouncement    
Gift Cards [Line Items]    
Change in accounting principle   $ (1,060)