Investments In Unconsolidated Joint Ventures And Entities (Summary Of Equity Earnings (Loss) From Investments In Unconsolidated Joint Ventures And Entities) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Schedule of Equity Method Investments [Line Items]
Total investor share of earnings	$ 1,621	$ 1,382	$ 1,345
Rialto Cinemas impairment recorded at investor level		(2,934)
Total equity earnings	1,621	(1,552)	1,345
Rialto Distribution [Member]
Schedule of Equity Method Investments [Line Items]
Total investor share of earnings	199	383	286
Rialto Cinemas [Member]
Schedule of Equity Method Investments [Line Items]
Total investor share of earnings	209	(72)	64
205-209 East 57th Street Associates, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Total investor share of earnings	27	33	89
Mt. Gravatt [Member]
Schedule of Equity Method Investments [Line Items]
Total investor share of earnings	$ 1,186	$ 1,038	$ 906