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INVENTORIES (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Inventories [Abstract]    
Raw materials $ 12,520 $ 11,167
Work-in-process 33,695 35,562
Finished goods 36,857 37,734
Total 83,072 84,463
Inventory, Net-Short-Term Portion 74,196 72,691
Inventory, Net-Long-Term Portion $ 8,876 $ 11,772