Condensed Consolidated Statements of Operations (unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Statement [Abstract]
Revenue	$ 224,820	$ 217,566	$ 460,619	$ 435,302
Revenue from Contract with Customer, Product and Service [Extensible List]	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember
Operating costs and expenses:
Operating expense (exclusive of depreciation and amortization shown separately below)	$ 70,838	$ 68,432	$ 140,501	$ 137,325
Selling, general and administrative, including stock-based compensation (note 7)	90,016	94,489	181,910	209,616
Depreciation and amortization expense	61,160	65,891	124,168	133,569
Insurance proceeds and restructuring, net		4,218		1,718
Operating costs and expenses	222,014	233,030	446,579	482,228
Operating income (loss)	2,806	(15,464)	14,040	(46,926)
Other income (expense):
Interest expense (including amortization of deferred loan fees)	(30,164)	(36,284)	(62,301)	(69,832)
Share of earnings (losses) of affiliates, net (note 4)	2,238	(1,068)	1,531	(4,364)
Realized and unrealized gains (losses) on financial instruments, net (note 2)	922,910	744,170	67,408	1,848,605
Other, net	(1,027)	9,754	(372)	10,545
Other income (expense)	893,957	716,572	6,266	1,784,954
Earnings (loss) before income taxes	896,763	701,108	20,306	1,738,028
Income tax (expense) benefit	(245,021)	(192,958)	(8,629)	(479,705)
Net earnings (loss)	651,742	508,150	11,677	1,258,323
Less net earnings (loss) attributable to the non-controlling interests	(26)		(51)	(57)
Net earnings (loss) attributable to member	$ 651,768	$ 508,150	$ 11,728	$ 1,258,380