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Inventories
6 Months Ended
Jul. 01, 2011
Inventories [Abstract]  
Inventories
 
Note B — Inventories
 
                 
    July 1,
    Dec. 31,
 
(Thousands)   2011     2010  
   
 
Principally average cost:
               
Raw materials and supplies
  $ 57,934     $ 43,295  
Work in process
    155,585       159,081  
Finished goods
    59,615       32,991  
                 
Gross inventories
    273,134       235,367  
Excess of average cost over LIFO inventory value
    90,745       80,900  
                 
Net inventories
  $ 182,389     $ 154,467