Business Segments (Reconciliation Of Segment Results To Consolidated Loss Before Income Taxes) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Segment Reporting [Abstract]
Income (loss) from construction operations	$ 2,388	$ (90,554)	$ (79,557)	$ (100,461)
Other income, net	3,058	1,020	9,475	4,717
Interest expense	(22,016)	(16,204)	(43,529)	(32,696)
LOSS BEFORE INCOME TAXES	$ (16,570)	$ (105,738)	$ (113,611)	$ (128,440)