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Property, Plant and Equipment
12 Months Ended
Dec. 31, 2012
Property, Plant and Equipment [Abstract]  
Property, Plant and Equipment
(5)         Property, Plant and Equipment

Property, plant and equipment consist of the following:

   
December 31,
 
   
2012
  
2011
 
        
Land
 $4,221  $4,147 
Buildings and improvements
  92,307   89,587 
Machinery and equipment
  364,370   340,978 
Furniture and fixtures
  1,813   1,797 
Construction in progress
  21,382   8,190 
Total
  484,093   444,699 
Accumulated depreciation
  (332,278)  (305,071)
Net
 $151,815  $139,628 

Depreciation expense was $21,528, $22,822 and $21,632 for the years ended December 31, 2012, 2011 and 2010, respectively. Total capital expenditures in 2012 and 2011 were $29,407 and $15,008, respectively.