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Inventories
 12 Months Ended
Dec. 31, 2016
Inventory Disclosure [Abstract]  
Inventories
Inventories

Inventories consist of the following:
 
December 31,
 
2016
 
2015
 
(In thousands)
Raw materials and purchased components
$
173,035

 
$
163,024

Work-in-process
94,955

 
75,181

Total inventories
$
267,990

 
$
238,205