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Inventories, Net (Tables)
12 Months Ended
Dec. 31, 2013
Schedule of Inventories Net
    December 31             
    (add 000)    2013     2012  

    Finished products

   $ 368,334      $ 355,881   

    Products in process and raw materials

     16,077        16,442   

    Supplies and expendable parts

     61,922        56,805   
     446,333        429,128   

    Less allowances

     (99,026     (96,817

    Total

   $   347,307      $   332,311