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INVESTMENTS IN AFFILIATES - Components (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2012
Dec. 31, 2011
Equity Method Investments and Joint Ventures [Abstract]    
Cost $ 374,729 $ 28,868
Dividend (125) 0
Equity in net earnings of other affiliates (6,948) (6,339)
Equity in net assets of affiliates $ 367,656 $ 22,529