Taxes (Schedule of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Deferred tax assets:
Tax loss carryforwards	$ 219,302	$ 326,763
Tax credit carryforwards	1,656	2,565
Investment in partnerships	39,999	170,610
Other	38,362	17,263
Gross deferred tax assets	299,319	517,201
Valuation allowance	(83,704)	(504,392)
Total deferred tax assets	215,615	12,809
Deferred tax liabilities:
Plant and equipment	1,245	467
Convertible Notes	75	7,008
Other	4,825	5,304
Total deferred tax liabilities	6,145	12,779
Net deferred tax asset	$ 209,470	$ 30