Investments In Unconsolidated Joint Ventures (Summary Of Equity Earnings From Investments In Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Schedule of Equity Method Investments [Line Items]
Total equity earnings	$ 792	$ 974	$ 815
Mt. Gravatt [Member]
Schedule of Equity Method Investments [Line Items]
Total equity earnings	674	690	726
Rialto Cinemas [Member]
Schedule of Equity Method Investments [Line Items]
Total equity earnings	$ 118	$ 284	$ 89