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Debt and Finance Leases - Long-Term Debt (Details) - USD ($)
 12 Months Ended
Dec. 30, 2023
Dec. 31, 2022
Jan. 01, 2022
Oct. 31, 2021
Debt Instrument [Line Items]        
Senior secured notes $ 300,000,000 $ 300,000,000    
Finance lease obligations 285,426,000 273,075,000    
Total debt, gross 585,426,000 573,075,000    
Unamortized debt issuance costs (3,246,000) (4,057,000)    
Unamortized bond discount costs (3,011,000) (3,519,000)    
Long-term debt 579,169,000 565,499,000    
Less: current portions of finance leases 11,178,000 7,089,000    
Total debt and finance leases, net of current portions 567,991,000 558,410,000    
Long-term debt, excluding current maturities 293,743,000 292,424,000    
Debt discount 3,011,000 3,519,000    
Amortization of debt discount and issuance costs $ 1,319,000 $ 1,153,000 $ 1,411,000  
Senior Notes | 6.0% Senior Secured Notes Due 2029        
Debt Instrument [Line Items]        
Stated percentage 6.00% 6.00%   6.00%
Revolving Credit Facility | Line of Credit        
Debt Instrument [Line Items]        
Long-term debt, gross $ 0 $ 0    
Available borrowing capacity $ 346,500,000 $ 346,500,000