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Summary of Disaggregates Net Sales into Major Merchandise Categories to Depict Nature and Amount of Revenue and Related Cash Flows (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 04, 2021
Jun. 28, 2020
Jul. 04, 2021
Jun. 28, 2020
Accounting Policies [Line Items]        
Net sales $ 326,020 $ 227,935 $ 598,826 $ 445,671
Hardgoods [Member]        
Accounting Policies [Line Items]        
Net sales 196,721 150,270 337,627 259,044
Athletic and sport footwear [Member]        
Accounting Policies [Line Items]        
Net sales 71,561 47,533 138,235 105,032
Athletic and sport apparel [Member]        
Accounting Policies [Line Items]        
Net sales 57,146 29,883 120,672 79,011
Other sales [Member]        
Accounting Policies [Line Items]        
Net sales $ 592 $ 249 $ 2,292 $ 2,584