Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies (Details)

v3.20.4
Summary of Significant Accounting Policies (Details)
ft² in Thousands
 1 Months Ended 3 Months Ended 11 Months Ended 12 Months Ended
Dec. 26, 2019
USD ($)
Dec. 26, 2019
USD ($)
Nov. 20, 2019
USD ($)
Dec. 31, 2020
USD ($)
ft²
store
designCenter
state
distributionCenter
segment
Dec. 26, 2019
USD ($)
Dec. 27, 2018
USD ($)
May 18, 2020
USD ($)
Dec. 28, 2017
USD ($)
Real Estate Properties [Line Items]                
Number of reportable segments | segment       1        
Number of states with facilities | state       31        
Number of distribution centers | distributionCenter       4        
Allowance for doubtful accounts $ 300,000 $ 300,000   $ 300,000 $ 300,000      
Tariff recoveries expected       24,300,000        
Tariff recoveries received       12,900,000        
Tariff recoveries receivable 19,300,000 19,300,000   11,400,000 19,300,000      
Reduction to cost of sales related to tariff refunds 3,000,000.0 14,000,000.0 $ 11,000,000.0 4,500,000        
Interest income earned on anticipated tariff recoveries       600,000 300,000      
Reduction to carrying cost of inventory related to tariff refunds 5,000,000.0 5,000,000.0     5,000,000.0      
Exposure from credit program 1,000,000.0 1,000,000.0   1,200,000 1,000,000.0      
Inventory valuation reserves 4,468,000 4,468,000   5,434,000 4,468,000      
Rent payments delayed or deferred       5,500,000        
Negative lease expense related to rent abatement concessions       100,000        
Maximum loss before additional coverage applies       $ 11,000,000.0        
Number of days customer may return merchandise       90 days        
Gift card breakage income       $ 1,500,000 1,200,000 $ 1,600,000    
Loyalty program award, as a percentage of selling price       1.00%        
Loyalty program breakage income       $ 1,400,000 1,100,000 400,000    
Allowance for sales returns 15,437,000 15,437,000   22,266,000 15,437,000      
Advertising expense       66,600,000 65,700,000 55,300,000    
Pre-opening expenses       $ 21,498,000 24,594,000 26,145,000    
Number of operating segments | segment       1        
Cumulative effect adjustment to retained earnings upon adoption 764,336,000 764,336,000   $ 997,388,000 764,336,000 584,309,000   $ 442,860,000
Incremental term loan                
Real Estate Properties [Line Items]                
Face amount of debt             $ 75,000,000.0  
Operating Lease, Liability, Current                
Real Estate Properties [Line Items]                
Rent payments delayed or deferred       4,500,000        
Operating Lease, Liability, Noncurrent                
Real Estate Properties [Line Items]                
Rent payments delayed or deferred       1,000,000.0        
Retained earnings                
Real Estate Properties [Line Items]                
Cumulative effect adjustment to retained earnings upon adoption $ 394,015,000 $ 394,015,000   $ 588,996,000 $ 394,015,000 243,563,000   119,550,000
Cumulative Effect, Period of Adoption, Adjustment                
Real Estate Properties [Line Items]                
Cumulative effect adjustment to retained earnings upon adoption           (179,000)   7,826,000
Cumulative Effect, Period of Adoption, Adjustment | Retained earnings                
Real Estate Properties [Line Items]                
Cumulative effect adjustment to retained earnings upon adoption           $ (179,000)   7,826,000
Minimum                
Real Estate Properties [Line Items]                
Receivables collection period (in days)       3 days        
Period prior to store opening or relocation that pre-opening expenses begin       3 months        
Maximum                
Real Estate Properties [Line Items]                
Receivables collection period (in days)       5 days        
Period prior to store opening or relocation that pre-opening expenses begin       1 year        
Warehouse format store                
Real Estate Properties [Line Items]                
Number of stores | store       133        
Area of facility | ft²       78        
Small format store                
Real Estate Properties [Line Items]                
Number of stores | designCenter       2        
Stock options                
Real Estate Properties [Line Items]                
Vesting period (in years)       4 years        
Dividend yield       0.00% 0.00% 0.00%    
Stock options | Minimum                
Real Estate Properties [Line Items]                
Vesting period (in years)       1 year        
Stock options | Maximum                
Real Estate Properties [Line Items]                
Vesting period (in years)       5 years        
Employee Stock                
Real Estate Properties [Line Items]                
Dividend yield       0.00%        
Accounting Standards Update 2016-02 | Cumulative Effect, Period of Adoption, Adjustment | Retained earnings                
Real Estate Properties [Line Items]                
Cumulative effect adjustment to retained earnings upon adoption           $ (200,000)    
Accounting Standards Update 2014-09 | Cumulative Effect, Period of Adoption, Adjustment | Retained earnings                
Real Estate Properties [Line Items]                
Cumulative effect adjustment to retained earnings upon adoption               $ 7,800,000