Goodwill And Intangible Assets (Summary Of Intangible Assets Other Than Goodwill) (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	$ 23,863	$ 24,707
Less: accumulated amortization	(21,964)	(22,661)
Less: impairment		(8)
Net intangible assets other than goodwill	1,899	2,038
Beneficial Leases [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	10,459	11,283
Less: accumulated amortization	(10,285)	(11,089)
Net intangible assets other than goodwill	174	194
Trade Name [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	9,024	9,024
Less: accumulated amortization	(8,032)	(7,961)
Net intangible assets other than goodwill	992	1,063
Other Intangible Assets [Member]
Finite-Lived Intangible Assets [Line Items]
Gross carrying amount	4,380	4,400
Less: accumulated amortization	(3,647)	(3,611)
Less: impairment		(8)
Net intangible assets other than goodwill	$ 733	$ 781