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Inventories
6 Months Ended
Jul. 02, 2022
Inventory Disclosure [Abstract]  
Inventories
4 Inventories
Inventories are classified as follows (in thousands):
 
 
 
 
 
 
 
 
 
 
    
July 2, 2022
    
December 31, 2021
 
Raw materials
   $ 180,658      $ 165,240  
Work in progress
     24,285        19,726  
Finished goods
     204,979        171,129  
    
 
 
    
 
 
 
Total inventories
   $ 409,922      $ 356,095