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Long-Term Debt - Narrative (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 25, 2024
Sep. 27, 2023
Sep. 25, 2024
Sep. 27, 2023
Jun. 26, 2024
Dec. 27, 2023
Jun. 28, 2023
Mar. 29, 2023
Mar. 28, 2023
Dec. 28, 2022
Line of Credit Facility [Line Items]                    
Notional Amount $ 230,000,000   $ 230,000,000              
Total shareholders' deficit (54,483,000) $ (35,798,000) (54,483,000) $ (35,798,000) $ (53,243,000) $ (62,686,000) $ (42,618,000)     $ (37,116,000)
Derivatives                    
Line of Credit Facility [Line Items]                    
Reclassification     (4,626,000)              
Total shareholders' deficit (43,171,000)   (43,171,000)     $ (41,322,000)        
Amortization of unrealized losses related to interest rate swaps to interest expense, net                    
Line of Credit Facility [Line Items]                    
Reclassification     502,000              
Interest Rate Swap 2020-2033                    
Line of Credit Facility [Line Items]                    
Notional Amount 60,000,000   60,000,000              
Termination fee       1,500,000            
Interest Rate Swap 2020-2033 | Maximum                    
Line of Credit Facility [Line Items]                    
Notional Amount 335,000,000   335,000,000         $ 335,000,000 $ 425,000,000  
Effective Interest Rate Swaps                    
Line of Credit Facility [Line Items]                    
Derivative asset 5,900,000   5,900,000              
Reclassification     4,600,000              
Expected reclassification within next twelve months     6,600,000              
Dedesignated Interest Rate Swaps | Other Nonoperating Income (Expense)                    
Line of Credit Facility [Line Items]                    
Unrealized loss on derivatives       10,600,000            
Dedesignated Interest Rate Swaps | Derivatives                    
Line of Credit Facility [Line Items]                    
Total shareholders' deficit 63,700,000   63,700,000              
Dedesignated Interest Rate Swaps | Amortization of unrealized losses related to interest rate swaps to interest expense, net                    
Line of Credit Facility [Line Items]                    
Reclassification 200,000 100,000 $ 500,000 200,000            
Dedesignated Interest Rate Swaps | Derivatives                    
Line of Credit Facility [Line Items]                    
Expected reclassification within next twelve months   $ 2,300,000   $ 2,300,000            
Senior Secured Revolver                    
Line of Credit Facility [Line Items]                    
Line of credit facility, term (in years)     5 years              
Line of credit facility, current borrowing capacity 400,000,000   $ 400,000,000              
Line of credit facility, accordion feature, increase limit 450,000,000   450,000,000              
Outstanding amount under credit facility 261,000,000.0   261,000,000.0              
Availability under the credit facility $ 122,900,000   $ 122,900,000              
Basis spread on variable rate debt (as a percent)     2.25%              
Commitment fee, percent     0.35%              
Weighted-average interest rate 7.68%   7.68%     7.41%        
Senior Secured Revolver | Interest Rate Swap                    
Line of Credit Facility [Line Items]                    
Weighted-average interest rate 5.14%   5.14%     5.04%        
Letter of Credit                    
Line of Credit Facility [Line Items]                    
Line of credit facility, current borrowing capacity $ 25,000,000   $ 25,000,000              
Outstanding amount of letters of credit $ 16,100,000   $ 16,100,000              
Interest rate 2.38%   2.38%