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Inventories (Tables)
3 Months Ended
Mar. 30, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventories
(In thousands)
March 30,
2019
 
December 29,
2018
Work in progress
$
49,096

 
$
47,224

Finished goods
17,677

 
19,872

Total inventories
$
66,773

 
$
67,096