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Inventories
3 Months Ended
Mar. 28, 2020
Inventory Disclosure [Abstract]  
Inventories
Inventories

A summary of inventories follows (in thousands):

        
 
March 28, 2020
 
December 28, 2019
Finished product
$
215,422

 
$
199,799

Work in process
87,291

 
81,841

Raw material
38,416

 
41,964

Supplies and other
40,303

 
39,353

 
$
381,432

 
$
362,957