Annual report pursuant to Section 13 and 15(d)

Equity Investments - Income Statement Disclosure (Details)

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Equity Investments - Income Statement Disclosure (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Equity Method Investments and Joint Ventures [Abstract]      
Gross revenue $ 625,012 $ 1,729,778 $ 755,374
Net (loss) income $ (76,523) $ 253,451 $ (37,102)