Goodwill And Intangible Assets (Summary Of Intangible Assets Other Than Goodwill) (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 23,839	$ 23,831
Less: accumulated amortization	(22,072)	(22,031)
Net intangible assets other than goodwill	1,767	1,800
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	10,460	10,458
Less: accumulated amortization	(10,295)	(10,290)
Net intangible assets other than goodwill	165	168
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	9,024	9,024
Less: accumulated amortization	(8,134)	(8,102)
Net intangible assets other than goodwill	890	922
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	4,355	4,349
Less: accumulated amortization	(3,643)	(3,639)
Net intangible assets other than goodwill	$ 712	$ 710