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Property and Equipment (Tables)
6 Months Ended
Mar. 31, 2013
Property and Equipment

Depreciation is computed over the estimated useful lives of the depreciable assets using the straight-line method (in thousands):

 

     March 31,
2013
     September 30,
2012
 

Property and equipment

   $ 166,904       $ 167,060   

Less: accumulated depreciation

     116,296         114,452   
  

 

 

    

 

 

 

Property and equipment, net

   $ 50,608       $ 52,608