Goodwill And Intangible Assets (Summary Of Intangible Assets Other Than Goodwill) (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 23,880	$ 23,831
Less: accumulated amortization	(22,136)	(22,031)
Net intangible assets other than goodwill	1,744	1,800
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	10,458	10,458
Less: accumulated amortization	(10,298)	(10,290)
Net intangible assets other than goodwill	160	168
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	9,024	9,024
Less: accumulated amortization	(8,166)	(8,102)
Net intangible assets other than goodwill	858	922
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	4,398	4,349
Less: accumulated amortization	(3,672)	(3,639)
Net intangible assets other than goodwill	$ 726	$ 710