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Property, Plant And Equipment
9 Months Ended
Sep. 30, 2011
Property, Plant And Equipment [Abstract] 
PROPERTY, PLANT AND EQUIPMENT
6.   PROPERTY, PLANT AND EQUIPMENT

Property, plant and equipment consist of the following (in thousands):

 

                 
    September 30,
2011
    December 31,
2010
 

Manufacturing equipment

  $ 178,574     $ 173,967  

Land

    8,101       8,101  

Buildings and improvements

    53,789       53,385  

Office furniture and research equipment

    15,164       14,493  
   

 

 

   

 

 

 
      255,628       249,946  

Accumulated depreciation

    (193,775     (185,429
   

 

 

   

 

 

 

Total property, plant and equipment, net

  $ 61,853     $ 64,517  
   

 

 

   

 

 

 

Depreciation expense for the three and nine months ended September 30, 2011 was $2.8 million and $9.0 million, respectively.