Annual report pursuant to Section 13 and 15(d)

Debt - Term Loan Facility (Details)

v3.19.3.a.u2
Debt - Term Loan Facility (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 26, 2019
Dec. 27, 2018
Debt Instrument [Line Items]    
Total debt at par value $ 145,500 $ 149,000
Term Loan Facility    
Debt Instrument [Line Items]    
Total debt at par value $ 145,500 $ 149,000
Term Loan Facility | Base Rate [Member]    
Debt Instrument [Line Items]    
Variable interest rate (as a percent) 1.50%  
Term Loan Facility | London Interbank Offered Rate (LIBOR) [Member]    
Debt Instrument [Line Items]    
Variable interest rate (as a percent) 2.50%  
Term Loan Facility | One Month LIBOR    
Debt Instrument [Line Items]    
Variable interest rate (as a percent) 1.00%  
Term Loan Facility | Federal Funds Rate [Member]    
Debt Instrument [Line Items]    
Variable interest rate (as a percent) 0.50%