Investments In Unconsolidated Joint Ventures (Summary Of Equity Earnings (Loss) From Investments In Unconsolidated Joint Ventures And Entities) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015
Schedule of Equity Method Investments [Line Items]
Total equity earnings	$ 815	$ 999	[1]	$ 1,204	[1]
Rialto Distribution [Member]
Schedule of Equity Method Investments [Line Items]
Total equity earnings				22
Rialto Cinemas [Member]
Schedule of Equity Method Investments [Line Items]
Total equity earnings	89	194		136
Mt. Gravatt [Member]
Schedule of Equity Method Investments [Line Items]
Total equity earnings	$ 726	$ 805		$ 1,046

[1] Certain prior year balances have been reclassified to conform to the 2017 presentation (see Note 2 - Summary of Significant Accounting Policies - Reclassifications).