Quarterly report pursuant to Section 13 or 15(d)

Investments In Unconsolidated Joint Ventures (Portside Master Company, L.L.C.) (Narrative) (Details)

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Investments In Unconsolidated Joint Ventures (Portside Master Company, L.L.C.) (Narrative) (Details) (USD $)
3 Months Ended 3 Months Ended 3 Months Ended 3 Months Ended
Mar. 31, 2014
PR II Portside Investors, L.L.C. [Member]
Mar. 31, 2014
Portside Apartment Holdings, L.L.C. [Member]
Mar. 31, 2013
Portside Apartment Holdings, L.L.C. [Member]
Mar. 31, 2014
Portside Master Company, L.L.C. [Member]
Oct. 23, 2012
Portside Master Company, L.L.C. [Member]
Oct. 23, 2012
Portside Master Company's Interest In Portside Apartment Holdings [Member]
Mar. 31, 2014
Construction Loan [Member]
Portside Apartment Holdings, L.L.C. [Member]
item
Mar. 31, 2014
Construction Loan Extension Number 1 [Member]
Portside Apartment Holdings, L.L.C. [Member]
Mar. 31, 2014
Construction Loan Extension Number 2 [Member]
Portside Apartment Holdings, L.L.C. [Member]
Mar. 31, 2014
Portside At Pier One Building Seven Property [Member]
Oct. 23, 2012
Portside At Pier One Building Seven Property [Member]
item
Mar. 31, 2014
Portside At Pier One Building Seven Property [Member]
PR II Portside Investors, L.L.C. [Member]
Mar. 31, 2014
Portside At Pier One Building Seven Property [Member]
Construction Loan [Member]
Portside Apartment Holdings, L.L.C. [Member]
Mar. 31, 2014
Minimum [Member]
Construction Loan [Member]
Portside Apartment Holdings, L.L.C. [Member]
Mar. 31, 2014
Portside Master Company, L.L.C. [Member]
Mar. 31, 2014
Portside Master Company, L.L.C. [Member]
PR II Portside Investors, L.L.C. [Member]
Schedule of Equity Method Investments [Line Items]                                
Indirect residual ownership percentage         38.25%                      
Number of units                     176          
Investment ownership percentage         85.00% 45.00%                    
Total project costs                   $ 66,300,000   $ 23,800,000        
Maximum borrowing capacity             42,500,000           42,500,000      
Amount outstanding             9,400,000                  
Percentage of operating return on capital   9.00%                            
Capital balance                               23,800,000
Accumulated unpaid operating return                               1,700,000
Percentage of capital event cash flows distributed 65.00%     35.00%                        
Internal rate of return 12.00%                              
Spread over LIBOR             2.50%                  
Loan maturity date             Dec. 01, 2015                  
Number of extension options             2                  
Loan extension period             2 years                  
Extension fee               0.125% 0.25%              
Percentage of debt guaranteed by the company             50.00%                  
Percentage of debt guaranteed by the company after project completion             25.00%                  
Percentage of debt guaranteed by the company after debt service coverage ratio threshold reached             10.00%                  
Threshold of payment guarantee termination, debt service coverage ratio                           1.25    
Development management and other services fees   $ 235,000 $ 42,000                          
Holding and distribution pattern under operating agreement   In general, the operating agreement of Portside Apartment Holdings provides that operating cash flows are distributed to members first to Prudential Portside and then to Portside Master based on a nine percent operating return on each members' capital balance in priorities as detailed in the operating agreement. Excess operating cash flows are distributed to the members in accordance with their ownership percentages.                         The operating agreement of Portside Master provides, among other things, for the distribution of net cash flow to the members in accordance with their ownership percentages.