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Inventories (Tables)
12 Months Ended
Dec. 31, 2016
Inventories [Abstract]  
Schedule of Details of Inventories
The following table presents the details of inventories as of December 31, 2016 and 2015 (in thousands):

  
December 31,
2016
  
December 31,
2015
 
Finished goods
 
$
178,740
  
$
163,501
 
Work in process
  
6,662
   
21,010
 
  
$
185,402
  
$
184,511