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Inventories (Tables)
 9 Months Ended
Sep. 30, 2013
Components of Inventories

The components of inventories are as follows:

 

     September 30,
2013		     December 31,
2012		  
(In thousands)             

Raw materials

    $ 134,709      $ 125,909   

Work in process

      9,680        8,287   

Finished goods

      78,533        78,788   

Supplies and materials

      113,973        119,284   
  

 

 

    

 

 

  

Inventories at FIFO or average cost

      336,895        332,268   

Excess of FIFO or average cost over LIFO cost

      (70,003 )      (63,501 ) 
  

 

 

    

 

 

  

Inventories, net

    $ 266,892      $ 268,767