Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income Statement [Abstract]
Revenue	$ 233,490	$ 6,177	$ 294,694	$ 10,146
Operating costs and expenses:
Operating expense (exclusive of depreciation and amortization shown separately below)	69,294	2,838	89,113	5,597
Selling, general and administrative, including stock-based compensation (note 4)	98,010	14,134	130,543	25,942
Depreciation and amortization expense	64,388	822	80,409	1,575
Operating costs and expenses	231,692	17,794	300,065	33,114
Operating income (loss)	1,798	(11,617)	(5,371)	(22,968)
Other income (expense):
Interest expense (including amortization of deferred loan fees)	(32,378)	(5)	(40,051)	(5)
Share of earnings (losses) of affiliates, net (note 7)	10,350	1,600	7,858	3,323
Realized and unrealized gains (losses) on financial instruments, net (note 5)	(459,207)	60,449	(559,405)	798,001
Other, net	(2,631)	541	(2,387)	750
Other income (expense)	(483,866)	62,585	(593,985)	802,069
Earnings (loss) before income taxes	(482,068)	50,968	(599,356)	779,101
Income tax (expense) benefit	170,456	(19,367)	96,195	(296,846)
Net earnings (loss)	(311,612)	31,601	(503,161)	482,255
Less net earnings (loss) attributable to the non-controlling interests	(154)	(1)	(193)	(1)
Net earnings (loss) attributable to member	$ (311,458)	$ 31,602	$ (502,968)	$ 482,256