Quarterly report pursuant to Section 13 or 15(d)

EQUITY INVESMENTS (Equity Investment Income Statement Disclosure) (Details)

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EQUITY INVESMENTS (Equity Investment Income Statement Disclosure) (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Equity Method Investments and Joint Ventures [Abstract]        
Gross revenue $ 113,417 $ 384,043 $ 557,375 $ 1,451,580
Net (loss) income $ (35,730) $ 68,414 $ (15,046) $ 181,884