Equity Investees (Schedule of Balance Sheet Information for Equity Investees) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Assets
Current assets	$ 726,430	$ 542,484
Fixed assets, net	4,020,324	3,912,185
Total assets	6,169,539	5,905,801
LIABILITIES AND CAPITAL
Current liabilities	645,317	496,939
Total liabilities and equity	6,169,539	5,905,801
Poseidon
Assets
Current assets	27,448	17,827
Fixed assets, net	150,416	160,379
Other assets	11,958	6,186
Total assets	189,822	184,392
LIABILITIES AND CAPITAL
Current liabilities	12,667	7,668
Other liabilities	234,401	231,970
Equity (Deficit)	(57,246)	(55,246)
Total liabilities and equity	$ 189,822	$ 184,392