Description Of Business And Segment Reporting (Reconciliation To Net Income Attributable To Common Shareholders) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014		Dec. 31, 2013
Operating income	$ 23,154	$ 22,173	[1]	$ 20,935	[1]
Depreciation and amortization	(14,562)	(15,468)	[1]	(15,197)	[1]
General and administrative	(18,652)	(18,902)	[1]	(18,053)	[1]
Income tax benefit (expense)	(4,943)	9,785	[1]	(4,942)	[1]
Equity earnings of unconsolidated joint ventures and entities	1,204	1,015	[1]	1,369	[1]
Gain on sale of assets	11,023	25	[1]	(56)	[1]
Other income (expense)	(440)	1,646	[1]	1,876	[1]
Income before income taxes	27,637	15,859	[1]	14,087	[1]
Operating Segments [Member]
Operating income	38,372	36,818		35,504
Depreciation and amortization	(14,268)	(15,108)		(14,764)
Corporate, Non-segment [Member]
Depreciation and amortization	(294)	(360)		(433)
General and administrative	(14,924)	(14,285)		(14,136)
Interest expense, net	(7,304)	(9,000)		(10,037)
Equity earnings of unconsolidated joint ventures and entities	1,204	1,015		1,369
Gain on sale of assets	11,023	25		(56)
Other income (expense)	(440)	1,646		1,876
Income before income taxes	$ 27,637	$ 15,859		$ 14,087

[1] Certain prior period amounts have been reclassified to conform to the current period presentation (see Note 2 - Significant Accounting Policies - Reclassifications).