Property And Equipment (Schedule Of Property And Equipment) (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Property And Equipment [Abstract]
Land	$ 76,125	$ 76,457
Building and improvements	152,350	153,232
Leasehold improvements	48,469	48,481
Fixtures and equipment	152,116	145,033
Construction-in-progress	29,477	26,000
Total cost	458,537	449,203
Less: accumulated depreciation	(188,959)	(184,479)
Operating Properties, net	$ 269,578	$ 264,724