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Inventories
12 Months Ended
Dec. 31, 2012
Inventories [Abstract]  
Inventories
(3) Inventories
 
The following table presents the details of inventories as of December 31, 2012 and 2011 (in thousands):
 
  
December 31,
2012
  
December 31,
2011
 
Finished goods
 $162,859  $111,931 
Work in process
  14,538   18,199 
 
 $177,397  $130,130