Quarterly report pursuant to Section 13 or 15(d)

Basis of Presentation and Summary of Significant Accounting Policies (Details)

v3.20.1
Basis of Presentation and Summary of Significant Accounting Policies (Details)
ft² in Thousands
3 Months Ended 12 Months Ended
Mar. 26, 2020
ft²
state
facility
segment
Mar. 28, 2019
segment
Dec. 31, 2020
Dec. 26, 2019
Real Estate Properties [Line Items]        
Number of reportable segments | segment 1 1    
Number of states with facilities | state 30      
Number of distribution centers 4      
Fiscal year period     371 days 364 days
Fiscal quarter period 91 days      
Decline in sales, as a percent 46.00%      
Minimum        
Real Estate Properties [Line Items]        
Fiscal year period 364 days      
Maximum        
Real Estate Properties [Line Items]        
Fiscal year period 371 days      
Warehouse Format Store [Member]        
Real Estate Properties [Line Items]        
Number of stores 123      
Area of facility | ft² 76      
Small Format Store [Member]        
Real Estate Properties [Line Items]        
Number of stores 1