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Property and equipment (Tables)
12 Months Ended
Aug. 31, 2012
Components of Property and Equipment

Components of property and equipment are as follows:

 

     August 31,  
     2012     2011  
     (Dollars in thousands)  

Land and land improvements

   $ 11,623      $ 10,552   

Plant and equipment

     346,087        330,273   

Construction in progress

     7,679        6,375   
  

 

 

   

 

 

 
     365,389        347,200   

Accumulated depreciation

     (252,198     (239,828
  

 

 

   

 

 

 

Net property and equipment

   $ 113,191      $ 107,372