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INVENTORIES
9 Months Ended
Sep. 30, 2011
Inventory Disclosure [Abstract] 
Inventories
5.  INVENTORIES
Inventories consisted of the following (in thousands):
   
September 30,
  
December 31,
 
   
2011
  
2010
 
      
As Restated
 
Raw materials
 $97,419  $56,414 
Work-in-process
  28,458   16,860 
Finished goods
  68,470   49,841 
    194,347   123,115 
Adjustment to LIFO basis
  (11,197)  (4,972)
   $183,150  $118,143 

At September 30, 2011, approximately 32% of the Company’s inventories were valued under the last-in, first-out (LIFO) method.  At December 31, 2010, approximately 39% of the Company’s inventories were valued under the LIFO method.  The remaining inventories were valued under the first-in, first-out (FIFO) method or average cost method.  All inventories are valued at lower of cost or market.