Quarterly report pursuant to Section 13 or 15(d)

Equity Investments (Equity Investment Income Statement Disclosure) (Details)

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Equity Investments (Equity Investment Income Statement Disclosure) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Equity Method Investments and Joint Ventures [Abstract]        
Gross revenue $ 99,640 $ 86,732 $ 194,118 $ 130,039
Net loss $ (67,336) $ (560) $ (92,675) $ (25,868)