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Inventories
12 Months Ended
Dec. 31, 2011
Inventories [Abstract]  
Inventories
3. INVENTORIES:

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

 

     December 31,  
     2011      2010  

Short-term inventories:

     

Raw materials

   $ 65,511       $ 58,610   

Work-in-process

     3,543         2,521   

Finished goods

     35,000         17,566   

Supplies

     3,115         2,190   
  

 

 

    

 

 

 
     107,169         80,887   

Long-term inventories:

     

Finished goods

     2,401         2,554   
  

 

 

    

 

 

 

Total inventories

   $ 109,570       $ 83,441   
  

 

 

    

 

 

 

Long-term inventories are recorded in other assets. The lower of cost or market adjustment for all inventories was $3.4 million and $4.5 million at December 31, 2011 and 2010, respectively.