Property And Equipment (Schedule Of Property And Equipment) (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Property And Equipment [Abstract]
Land	$ 77,420	$ 76,457
Building and improvements	151,196	153,232
Leasehold improvements	55,457	48,481
Fixtures and equipment	159,752	145,033
Construction-in-progress	10,494	26,000
Total cost	454,319	449,203
Less: accumulated depreciation	(188,733)	(184,479)
Operating properties, net	$ 265,586	$ 264,724