Quarterly report pursuant to Section 13 or 15(d)

Investments In Unconsolidated Joint Ventures (Plaza VIII And IX Associates, L.L.C.) (Details)

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Investments In Unconsolidated Joint Ventures (Plaza VIII And IX Associates, L.L.C.) (Details) (Plaza VIII & IX Associates [Member])
Sep. 30, 2012
Plaza VIII & IX Associates [Member]
 
Schedule of Equity Method Investments [Line Items]  
Percentage of interest in venture 50.00%