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Acquisitions and Divestitures (Tables)
12 Months Ended
Dec. 31, 2011
Acquisitions and Divestitures [Abstract]  
Classification of assets and liabilities held for sale
      $00,00000       $00,00000  
  in thousands   2011     2010  

  Held for Sale

               

  Current assets

    $0       $3,460  

  Property, plant & equipment, net

    0       9,625  

  Other assets

    0       122  

  Total assets held for sale

    $0       $13,207  

  Current liabilities

    $0       $116  

  Total liabilities of assets held for sale

    $0       $116