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Investments In Unconsolidated Joint Ventures And Entities (Summary Of The Investments In And Advances To Unconsolidated Joint Ventures And Entities) (Details) (USD $)
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2012
Rialto Distribution [Member]
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Dec. 31, 2009
Rialto Distribution [Member]
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Oct. 01, 2005
Rialto Distribution [Member]
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Dec. 31, 2012
Rialto Cinemas [Member]
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Dec. 31, 2011
Rialto Cinemas [Member]
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Oct. 01, 2005
Rialto Cinemas [Member]
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Dec. 31, 2012
205-209 East 57th Street Associates, LLC [Member]
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Dec. 31, 2011
205-209 East 57th Street Associates, LLC [Member]
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Dec. 31, 2012
Mt. Gravatt [Member]
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Dec. 31, 2011
Mt. Gravatt [Member]
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| Schedule of Equity Method Investments [Line Items] | ||||||||||||
| Ownership percentage in equity method investment | 33.30% | 33.30% | 50.00% | 25.00% | 33.30% | |||||||
| Total investments | $ 7,715,000 | $ 7,839,000 | $ 0 | $ 1,561,000 | $ 1,586,000 | $ 50 | $ 60,000 | $ 33,000 | $ 6,094,000 | $ 6,220,000 |