Properties And Equipment (Schedule Of Property And Equipment) (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total cost	$ 524,085	$ 546,440
Less: accumulated depreciation	(256,527)	(259,488)
Operating property, net	267,558	286,952
Land [Member]
Property, Plant and Equipment [Line Items]
Total cost	60,391	67,392
Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Total cost	206,380	213,226
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total cost	60,484	64,230
Fixtures And Equipment [Member]
Property, Plant and Equipment [Line Items]
Total cost	190,714	194,753
Construction-In-Progress [Member]
Property, Plant and Equipment [Line Items]
Total cost	$ 6,116	$ 6,839