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Inventories
6 Months Ended
Jun. 30, 2012
Inventories [Abstract]  
Inventories

2. Inventories

Inventories are stated at the lower of cost or market and consist of the following (in thousands):

 

                 
    June 30,
2012
    December 31,
2011
 

Short-term inventories:

               

Raw materials

  $ 64,682     $ 65,511  

Work-in-process

    7,212       3,543  

Finished goods

    45,575       35,000  

Supplies

    3,135       3,115  
   

 

 

   

 

 

 
      120,604       107,169  

Long-term inventories:

               

Finished goods

    2,237       2,401  
   

 

 

   

 

 

 

Total inventories

  $ 122,841     $ 109,570  
   

 

 

   

 

 

 

Long-term inventories are recorded in other assets. The lower of cost or market adjustment was $2.8 million at June 30, 2012 and $3.4 million at December 31, 2011.