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Inventories, net
 3 Months Ended
Mar. 27, 2021
Inventory Disclosure [Abstract]  
Inventories, net Inventories, net
Inventories are stated at the lower of cost (principally standard cost, which approximates actual cost on a first in, first out basis) or net realizable value.
 
Inventories, net, consisted of the following (in thousands):
March 27,
2021		December 26,
2020
Raw materials$52,320 $48,122 
Work-in-progress35,466 30,806 
Finished goods16,941 20,301 
$104,727 $99,229