Annual report pursuant to Section 13 and 15(d)

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

v2.4.0.6
Investments In Unconsolidated Joint Ventures (Plaza VIII And IX Associates, L.L.C.) (Narrative) (Details) (Plaza VIII & IX Associates, L.L.C. [Member])
Dec. 31, 2012
Plaza VIII & IX Associates, L.L.C. [Member]
 
Schedule of Equity Method Investments [Line Items]  
Percentage of interest in venture 50.00%