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Inventories
6 Months Ended
Jun. 30, 2011
Inventories [Abstract]  
Inventories
 
4.   Inventories
 
The Corporation’s inventories at June 30, 2011 and December 31, 2010 were:
 
                 
    June 30,
    December 31,
 
    2011     2010  
 
(In thousands)
               
Finished goods
  $ 123,935     $ 106,998  
Work-in-process
    32,846       23,636  
Raw materials
    121,583       89,616  
                 
Total inventories
  $ 278,364     $ 220,250