EQUITY INVESMENTS (Equity Investments Balance Sheet Disclosure) (Details) - USD ($) $ in Thousands	Sep. 30, 2018	Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]
Current assets	$ 481,394	$ 415,032
Noncurrent assets	1,336,604	1,542,090
Current liabilities	358,177	261,086
Noncurrent liabilities	$ 48,328	$ 148,839

The amount of noncurrent liabilities reported by an equity method investment of the entity.

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