EQUITY METHOD INVESTMENTS - (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Equity Method Investments and Joint Ventures [Abstract]
Revenues	$ 15,243	$ 8,013
Expenses	4,534	2,138
Net income (loss)	$ (15,589)	$ 8,814

The amount of net income (loss) reported by an equity method investment of the entity.

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