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Marketable Securities - SERP Investments (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 28, 2025
Sep. 27, 2025
Sep. 28, 2024
Sep. 27, 2025
Sep. 28, 2024
Marketable Securities          
Investment income (loss) and interest expense   $ 3,276 $ 7,848 $ 12,981 $ 17,461
Subsequent Event          
Marketable Securities          
Selling in equity securities $ 7,200        
Selling in corporate and municipal bonds $ 24,400        
Supplemental Employee Retirement Plan          
Marketable Securities          
Investment income (loss) and interest expense   $ 1,600 $ 1,600 $ 3,400 $ 3,400