Provision for Credit Losses (Reconciliation Of Allowance For Credit Losses) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Provision for Credit Losses [Line Items]
Beginning balance	$ 1,256	$ 9,298
Change in estimates during the current period	3,821	958
Unwind of provision for expected credit losses		(9,000)
Ending balance	5,077	1,256
Trade and related party trade receivables [Member]
Provision for Credit Losses [Line Items]
Change in estimates during the current period	3,777	436
Unwind of provision for expected credit losses		(9,000)
Other Assets Related Net Provision Expense [Member]
Provision for Credit Losses [Line Items]
Change in estimates during the current period	44	522
Unwind of provision for expected credit losses		0
Trade and related party trade receivables [Member]
Provision for Credit Losses [Line Items]
Beginning balance	734	9,298
Ending balance	4,511	734
Other assets [Member]
Provision for Credit Losses [Line Items]
Beginning balance	522	0
Ending balance	$ 566	$ 522