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PROPERTY, PLANT AND EQUIPMENT
 12 Months Ended
Sep. 30, 2015
PROPERTY, PLANT AND EQUIPMENT [Abstract]  
PROPERTY, PLANT AND EQUIPMENT
6.PROPERTY, PLANT AND EQUIPMENT:

Property, plant and equipment and the related accumulated depreciation at September 30, 2015 and 2014 were as follows:

  
2015
  
2014
 
Buildings
 
$
101,291
  
$
91,540
 
Machinery and equipment
  
350,890
   
340,942
 
   
452,181
   
432,482
 
Less accumulated depreciation
  
(274,187
)
  
(250,073
)
   
177,994
   
182,409
 
Land
  
19,847
   
16,453
 
Construction in progress
  
29,567
   
10,453
 
  
$
227,408
  
$
209,315
 

Depreciation expense was $43,820, $35,546 and $31,303 for each of the three years ended September 30, 2015, 2014 and 2013, respectively.