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Accounting Policies - Shipping and Handling, and Research and Development (Details) - USD ($)
3 Months Ended 9 Months Ended
Sep. 24, 2023
Sep. 25, 2022
Sep. 24, 2023
Sep. 25, 2022
Shipping and Handling        
Shipping and handling $ 16,800,000 $ 18,600,000 $ 50,700,000 $ 54,700,000
Research and Development        
Research and development costs included in selling, general, and administrative expense $ 15,200,000 $ 14,200,000 $ 47,300,000 $ 38,400,000