Quarterly report pursuant to Section 13 or 15(d)

Properties, net (Details 2)

v2.4.0.6
Properties, net (Details 2) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2012
Dec. 31, 2011
Properties    
Projects in development or held for future development $ 614,595 $ 638,919
Projects in development or held for future development | Land in development or held for future development
   
Properties    
Projects in development or held for future development 220,234 229,833
Projects in development or held for future development | Construction in progress, excluding land
   
Properties    
Projects in development or held for future development $ 394,361 $ 409,086