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Pension Benefits (Details)
$ in Thousands
 3 Months Ended
Mar. 29, 2025
USD ($)
plan
Mar. 30, 2024
USD ($)
Pension Benefits    
Number of defined benefit pension plans sponsored by company | plan 4  
Percentage of employees covered by defined benefit pension plans 20.00%  
Number of defined benefit pension plans sponsored by company for union employees | plan 3  
Number of defined benefit pension plans sponsored by company for salaried and certain hourly employees | plan 1  
Change in projected benefit obligation:    
Service cost | $ $ 1,098 $ 1,288
Interest cost | $ 2,063 1,899
Change in plan assets:    
Employer contributions | $ $ 0 $ 0