Quarterly report pursuant to Section 13 or 15(d)

Investments In Unconsolidated Joint Ventures (Marbella RoseGarden, L.L.C.) (Narrative) (Details)

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Investments In Unconsolidated Joint Ventures (Marbella RoseGarden, L.L.C.) (Narrative) (Details) (USD $)
 3 Months Ended 9 Months Ended
Sep. 30, 2013
PruRose/Marbella I, L.L.C. [Member]
Sep. 30, 2013
PruRose/Marbella I, L.L.C. [Member]
Sep. 30, 2013
Marbella RoseGarden, L.L.C. [Member]
Oct. 23, 2012
Marbella RoseGarden, L.L.C. [Member]
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Sep. 30, 2013
Marbella RoseGarden, L.L.C. [Member]
Prudential-Marbella Partnership [Member]
Oct. 23, 2012
Marbella RoseGarden's Interest In PruRose/Marbella I [Member]
Schedule of Equity Method Investments [Line Items]            
Indirect residual ownership percentage       24.27%    
Number of units       412    
Number of stories       40    
Area of property (in square feet)       369,607    
Percentage of interest in venture       48.5325%    
Investment ownership percentage           50.00%
Percentage of operating return on capital   9.50%        
Capital balance     $ 100,000   $ 7,600,000  
Accumulated unpaid operating return     0      
Mortgage loans, carrying amount 95,000,000 95,000,000        
Interest rate 4.99% 4.99%        
Mortgage loan, maturity date   May 2018        
Management, leasing and other services fees $ 83,000 $ 262,000        
Holding and distribution pattern under operating agreement   In general, the operating agreement of PruRose/Marbella provides that operating cash flows are distributed to members first to Prudential-Marbella and then to RoseGarden based on a 9.5 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.