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Inventories
9 Months Ended
Oct. 01, 2022
Notes To Financial Statements [Abstract]  
Inventories Inventories
Inventories are composed of material, labor and overhead and are stated at the lower of cost or net realizable value. Costs for inventory have been determined using the first-in, first-out ("FIFO") method. The company estimates reserves for inventory obsolescence and shrinkage based on its judgment of future realization. Inventories at October 1, 2022 and January 1, 2022 are as follows (in thousands): 
 Oct 1, 2022Jan 1, 2022
Raw materials and parts$569,965 $421,361 
Work-in-process95,952 65,581 
Finished goods396,717 350,476 
 $1,062,634 $837,418