Quarterly report pursuant to Section 13 or 15(d)

Real Estate Transactions (Narrative) (Details)

v2.4.0.8
Real Estate Transactions (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
9 Months Ended 0 Months Ended 0 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2014
Multi-Family Properties [Member]
item
Sep. 30, 2014
Minimum [Member]
Sep. 30, 2014
Maximum [Member]
Apr. 10, 2014
Andover Place [Member]
item
Aug. 15, 2014
Overlook Ridge Properties [Member]
Aug. 15, 2014
Overlook Ridge Properties [Member]
Multi-Family Properties [Member]
item
Aug. 15, 2014
Overlook Ridge Properties [Member]
Multi-Family Properties [Member]
property
Aug. 15, 2014
Overlook Ridge Properties [Member]
Multi-Family Properties [Member]
Sep. 30, 2014
Overlook Ridge Properties [Member]
Consolidated Land [Member]
Aug. 15, 2014
Overlook Ridge Properties [Member]
Consolidated Land [Member]
Aug. 15, 2014
Overlook Ridge Properties [Member]
Minimum [Member]
Consolidated Land [Member]
Aug. 15, 2014
Overlook Ridge Properties [Member]
Maximum [Member]
Consolidated Land [Member]
Sep. 30, 2014
Curtis Center [Member]
Real Estate Properties [Line Items]                            
Number of units   4,940     220                  
Cash consideration         $ 37.70 $ 16.60                
Percentage of interest in developable land                   100.00% 100.00%      
Percentage of additional interest acquired             25.00% 25.00%            
Percentage of interest in venture    [1]   7.50% 85.00%                   50.00%
Indirect ownership interest                 50.00%          
Number of properties in which additional interest was acquired during period             2 2            
Loans assumed                     22.8      
Spread over LIBOR                       2.50% 3.50%  
Transaction costs 1.9                          
Acquisition and other investment fundings handled by intermediary $ 44.4                         $ 40.1
[1] Company's effective ownership % represents the Company's entitlement to residual distributions after payments of priority returns, where applicable.