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Inventories
12 Months Ended
Dec. 31, 2013
Inventories [Abstract]  
Inventories
(3) Inventories

The following table presents the details of inventories as of December 31, 2013 and 2012 (in thousands):

 
 
December 31,
2013
  
December 31,
2012
 
Finished goods
 
$
120,751
  
$
162,859
 
Work in process
  
15,136
   
14,538
 
 
 
$
135,887
  
$
177,397