Quarterly report pursuant to Section 13 or 15(d)

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

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Investments In Unconsolidated Joint Ventures (RoseGarden Marbella South, L.L.C.) (Narrative) (Details) (USD $)
 3 Months Ended 6 Months Ended 6 Months Ended
Jul. 15, 2013
Jun. 30, 2013
Jun. 30, 2013
PruRose Marbella II, L.L.C. [Member]
Jun. 30, 2013
PruRose Marbella II, L.L.C. [Member]
Jun. 30, 2013
RoseGarden Marbella South, L.L.C. [Member]
Oct. 23, 2012
RoseGarden Marbella South, L.L.C. [Member]
item
Jun. 30, 2013
RoseGarden Marbella South, L.L.C. [Member]
PruRose Marbella II, L.L.C. [Member]
Oct. 23, 2012
RoseGarden Marbella South's Interest In PruRose Marbella II [Member]
Jun. 30, 2013
Marbella II Project [Member]
Jun. 30, 2013
Marbella II Project [Member]
PRISA III Investments LLC [Member]
Jun. 30, 2013
Marbella II Project [Member]
Parent Company [Member]
Jun. 30, 2013
Construction Loan [Member]
Marbella II Project [Member]
RoseGarden Marbella South, L.L.C. [Member]
Schedule of Equity Method Investments [Line Items]                        
Indirect residual ownership percentage           24.27%            
Number of units           311            
Percentage of interest in venture           48.5325%            
Investment ownership percentage               50.00%        
Total project costs                 $ 132,100,000 $ 41,400,000 $ 13,300,000  
Estimated project costs to be funded by member capital                 54,700,000      
Maximum borrowing capacity 600,000,000 600,000,000                   77,400,000
Percentage of operating return on capital       9.00%                
Capital balance         700,000   3,200,000          
Accumulated unpaid operating return         4,000   300,000          
Development management and other services fees     $ 3,000 $ 18,000                
Holding and distribution pattern under operating agreement       In general, the operating agreement of PruRose/Marbella II provides that operating cash flows are distributed to members pro-rata 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.