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Inventories (Tables)
12 Months Ended
Dec. 31, 2015
Inventory Disclosure [Abstract]  
Inventories, Net of Reserves

Inventories, net of reserves were as follows:

 

     December 31  

In thousands

     2015         2014   

Raw materials

   $ 60,098       $ 61,266   

In-process and finished

     115,874         117,580   

Supplies

     71,242         69,859   

Total

   $ 247,214       $ 248,705