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Inventories
 6 Months Ended
Jun. 26, 2015
Inventory Disclosure [Abstract]  
Inventories
Inventories

Inventories consisted of the following:
(In thousands)
 
June 26,
2015
 
December 31,
2014
Raw materials
 
$
6,856

 
$
6,826

Work in process
 
124,226

 
95,675

Finished goods
 
46,572

 
50,886

Total inventories
 
$
177,654

 
$
153,387