Property and Equipment (Schedule Of Property And Equipment) (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Total cost	$ 514,648	$ 546,440
Less: accumulated depreciation	(253,034)	(259,488)
Operating property, net	261,614	286,952
Land [Member]
Property, Plant and Equipment [Line Items]
Total cost	59,479	67,392
Building And Improvements [Member]
Property, Plant and Equipment [Line Items]
Total cost	202,302	213,226
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Total cost	59,067	64,230
Fixtures And Equipment [Member]
Property, Plant and Equipment [Line Items]
Total cost	188,955	194,753
Construction-In-Progress [Member]
Property, Plant and Equipment [Line Items]
Total cost	$ 4,845	$ 6,839