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Inventories
3 Months Ended
Apr. 03, 2021
Notes To Financial Statements [Abstract]  
Inventories Inventories
Inventories are composed of material, labor and overhead and are stated at the lower of cost or market. 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 April 3, 2021 and January 2, 2021 are as follows (in thousands): 
 Apr 3, 2021Jan 2, 2021
Raw materials and parts$292,068 $263,200 
Work-in-process57,537 55,104 
Finished goods224,672 221,894 
 $574,277 $540,198