Income Taxes (Reconciliation Of Income Tax Expense (Benefit)) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Income Tax Disclosure [Abstract]
Income tax expense (benefit) computed by applying the statutory rate	$ 12,556	$ (9,844)
State income tax expense (benefit), net of federal benefit	1,685	(1,641)
Non-controlling interest in Superior	0	(850)
Deferred tax liability revaluation	0	(5,339)
Valuation allowance	94,728	(17,974)
Revaluation of deferred tax assets and liabilities due to state income tax rate change	5,698	0
Other permanent items	143	(300)
Total income taxes	$ (74,646)	$ 0