Investments In Unconsolidated Joint Ventures (Summary Of Equity Earnings (Losses) From Investments In Unconsolidated Joint Ventures) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Schedule of Equity Method Investments [Line Items]
Total equity earnings	$ (75)	$ (97)	$ 158	$ (292)
Mt. Gravatt [Member]
Schedule of Equity Method Investments [Line Items]
Total equity earnings	(26)	(73)	156	(160)
Rialto Cinemas [Member]
Schedule of Equity Method Investments [Line Items]
Total equity earnings	$ (49)	$ (24)	$ 2	$ (132)