Goodwill And Intangible Assets (Summary Of Intangible Assets Other Than Goodwill) (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 26,189	$ 26,389
Less: accumulated amortization	(23,758)	(23,114)
Less: impairment charges	(40)	(17)
Net intangible assets other than goodwill	2,391	3,258
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	12,216	12,335
Less: accumulated amortization	(11,964)	(12,002)
Net intangible assets other than goodwill	252	333
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	9,058	9,058
Less: accumulated amortization	(7,838)	(7,660)
Net intangible assets other than goodwill	1,220	1,398
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	4,915	4,996
Less: accumulated amortization	(3,956)	(3,452)
Less: impairment charges	(40)	(17)
Net intangible assets other than goodwill	$ 919	$ 1,527