Annual report pursuant to Section 13 and 15(d)

Debt - Covenants, Deferred Debt Issuance Cost And Original Issue Discount (Details)

v3.20.4
Debt - Covenants, Deferred Debt Issuance Cost And Original Issue Discount (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2020
Dec. 26, 2019
Dec. 27, 2018
Debt Instrument [Line Items]      
Amortization expense $ 1,400 $ 1,100 $ 1,000
ABL Facility      
Debt Instrument [Line Items]      
Percentage usage of facility to trigger covenant 90.00%    
Deferred debt issuance costs $ 975 574  
Term Loan Facility      
Debt Instrument [Line Items]      
Deferred debt issuance costs $ 9,000 $ 2,900