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Property, Plant, And Equipment
12 Months Ended
Dec. 31, 2011
Property, Plant, And Equipment [Abstract]  
Property, Plant, And Equipment

3. PROPERTY, PLANT, AND EQUIPMENT

Components of property, plant, and equipment at December 31 consisted of the following (in thousands):

  2011 2010
Land and land improvements $ 15,801   $ 15,239  
Building and improvements   68,402     65,156  
Machinery and equipment   193,355     178,427  
Construction in progress   7,010     3,122  
Property, plant, and equipment, gross   284,568     261,944  
Less: accumulated depreciation   (132,594 )   (116,161 )
Property, plant, and equipment, net $ 151,974   $ 145,783