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Inventories (Tables)
9 Months Ended
Sep. 30, 2013
Inventories [Abstract]  
Schedule Of Components Of Inventories
    September 30,   December 31,
(In Thousands)   2013   2012
Finished goods $ 16,405 $ 16,138
Work-in-process   8,816   7,451
Raw materials   28,282   28,758
Stores, supplies and other   23,246   22,323
Total $ 76,749 $ 74,670