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Inventories
12 Months Ended
Feb. 22, 2018
Inventory Disclosure [Abstract]  
Inventories
8)

Inventories

Inventories consist of the following:

 

     Years Ended December 31,  
            2017                  2016        

Raw material

   $ 191,351      $ 150,150  

Work-in-process

     54,050        39,105  

Finished goods

     93,680        86,614  
  

 

 

    

 

 

 
   $ 339,081      $ 275,869  
  

 

 

    

 

 

 

 

Inventory-related excess and obsolete charges of $20,213, $16,039 and $13,602 were recorded in cost of products in the years ended December 31, 2017, 2016 and 2015, respectively.