Goodwill And Intangible Assets (Summary Of Intangible Assets Other Than Goodwill) (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 23,892	$ 24,707
Less: accumulated amortization	(22,051)	(22,661)
Less: impairment		(8)
Net intangible assets other than goodwill	1,841	2,038
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	10,458	11,283
Less: accumulated amortization	(10,288)	(11,089)
Net intangible assets other than goodwill	170	194
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	9,024	9,024
Less: accumulated amortization	(8,067)	(7,961)
Net intangible assets other than goodwill	957	1,063
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	4,410	4,400
Less: accumulated amortization	(3,696)	(3,611)
Less: impairment		(8)
Net intangible assets other than goodwill	$ 714	$ 781