Business Segments (Reconciliation Of Segment Results To Consolidated Loss Before Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Segment Reporting [Abstract]
Loss from construction operations	$ (12,566)	$ (6,892)	$ (92,123)	$ (107,353)
Other income, net	2,967	397	12,442	5,114
Interest expense	(20,313)	(17,015)	(63,842)	(49,711)
LOSS BEFORE INCOME TAXES	$ (29,912)	$ (23,510)	$ (143,523)	$ (151,950)