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Inventories
3 Months Ended
Mar. 29, 2020
Inventory, Net [Abstract]  
Inventories Inventories

Inventories consisted of the following (in thousands):
 
March 29, 2020
 
December 31, 2019

Raw materials
$
73,047

 
$
65,315

Work in process
51,548

 
53,891

Finished goods
22,580

 
18,103

Total inventories
$
147,175

 
$
137,309