Goodwill And Intangible Assets (Summary Of Intangible Assets Other Than Goodwill) (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 26,019	$ 26,389
Less: accumulated amortization	(23,431)	(23,114)
Less: impairment charges	(40)	(17)
Net intangible assets other than goodwill	2,548	3,258
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	12,122	12,335
Less: accumulated amortization	(11,852)	(12,002)
Net intangible assets other than goodwill	270	333
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	9,059	9,058
Less: accumulated amortization	(7,795)	(7,660)
Net intangible assets other than goodwill	1,264	1,398
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	4,838	4,996
Less: accumulated amortization	(3,784)	(3,452)
Less: impairment charges	(40)	(17)
Net intangible assets other than goodwill	$ 1,014	$ 1,527