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Inventories
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Inventories
3. Inventories

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

 

     March 31,
2014
     December 31,
2013
 

Short-term inventories:

     

Raw materials

   $ 43,061       $ 52,598   

Work-in-process

     3,261         4,902   

Finished goods

     14,364         49,351   

Supplies

     2,288         3,541   
  

 

 

    

 

 

 
     62,974         110,392   

Long-term inventories:

     

Finished goods

     1,208         1,249   
  

 

 

    

 

 

 

Total inventories

   $ 64,182       $ 111,641   
  

 

 

    

 

 

 

Long-term inventories are recorded in other assets.