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Employee Benefit Plans (Defined Contribution Plans) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 24, 2022
Sep. 30, 2023
Sep. 24, 2022
Non-Collective-Bargaining Plan        
Defined Contribution Plans [Line Items]        
Percentage of employees covered     98.00%  
Employer matching contribution, percentage     1.00%  
Employer matching contribution, discretionary percentage     2.00%  
Maximum annual contribution per employee, percentage     3.00%  
Cost recognized $ 63   $ 230 $ 189
Reversal of cost recognized   $ 94    
Collective-Bargaining Plan        
Defined Contribution Plans [Line Items]        
Percentage of employees covered     2.00%  
Maximum annual contribution per employee, percentage     2.75%  
Cost recognized $ 2 $ 14 $ 8 $ 60