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Property and Equipment (Tables)
 12 Months Ended
Sep. 30, 2013
Property Plant And Equipment [Abstract]  
Estimated Life of Property and Equipment

Property and equipment consisted of the following at September 30,

 

     2012     2013  
     (Amounts in thousands)  

Land

    $ 41,050      $ 40,939   

Buildings and improvements

      79,540        81,212   

Machinery and equipment

      25,407        26,334   

Furniture and fixtures

      3,904        4,656   

Vehicles

      4,761        4,945   
  

 

 

    

 

 

  
     154,662        158,086   

Accumulated depreciation and amortization

      (55,866 )      (57,747 ) 
  

 

 

    

 

 

  
   $ 98,796      $ 100,339