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PROPERTY, PLANT, AND EQUIPMENT
12 Months Ended
Dec. 31, 2012
PROPERTY, PLANT, AND EQUIPMENT  
PROPERTY, PLANT, AND EQUIPMENT

7. PROPERTY, PLANT, AND EQUIPMENT

 
  December 31,
2012
  December 31,
2011
 
 
  (in thousands)
 

Land and buildings

  $ 108,841   $ 106,891  

Machinery and equipment

    257,665     248,704  

Construction in progress

    11,886     11,623  
           

Property, plant and equipment

    378,392     367,218  

Accumulated depreciation

    (253,554 )   (245,426 )
           

Property, plant and equipment, net

  $ 124,838   $ 121,792  
           

        Included in construction in progress are computer software costs of $4.7 million and $2.6 million as of December 31, 2012 and December 31, 2011, respectively.