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INCOME TAXES (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
INCOME TAXES [Abstract]        
Income Tax Expense (Benefit) $ (7,167) $ 21,003 $ (10,518) $ 33,202
Effective Income Tax Rate, Continuing Operations     25.94667% 44.00705%