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Inventories (Tables)
3 Months Ended
Mar. 31, 2023
Inventory, Net [Abstract]  
Components of Inventories
Major components of inventories were as follows (in thousands):
March 31,
2023
December 30,
2022
Finished products and components$246,401 $222,326 
Products and components in various stages of completion147,687 138,957 
Raw materials and purchased components232,913 248,636 
Subtotal627,001 609,919 
Reduction to LIFO cost(129,759)(133,129)
Total$497,242 $476,790