Investments In Unconsolidated Joint Ventures (RoseGarden Monaco Holdings, L.L.C.) (Narrative) (Details) (USD $)
 2 Months Ended 12 Months Ended
Dec. 31, 2012
PruRose Monaco Holdings, L.L.C. [Member]
Dec. 31, 2013
PruRose Monaco Holdings, L.L.C. [Member]
Dec. 31, 2013
Monaco Holdings, L.L.C [Member]
Dec. 31, 2013
RoseGarden Monaco Holdings, L.L.C. [Member]
Oct. 23, 2012
RoseGarden Monaco Holdings, L.L.C. [Member]
sqft
item
property
Dec. 31, 2013
RoseGarden Monaco Holdings, L.L.C. [Member]
Prudential Insurance Company Of America [Member]
Oct. 23, 2012
RoseGarden Monaco Holdings' Interest In Monaco Holdings [Member]
Oct. 23, 2012
Monaco Holdings' Interest In PruRose Monaco Holdings [Member]
Schedule of Equity Method Investments [Line Items]                
Indirect residual ownership percentage         15.00%      
Number of real estate properties         2      
Number of stories         50      
Number of units         523      
Area of property (in square feet)         477,254      
Percentage of interest in venture         50.00%      
Investment ownership percentage             60.00% 50.00%
Percentage of operating return on capital   9.00%            
Capital balance           $ 76,000,000    
Accumulated unpaid operating return           4,000,000    
Mortgage loans, carrying amount   165,000,000            
Interest rate   4.19%            
Mortgage loan, maturity date   February 2021            
Management, leasing and other services fees $ 85,000 $ 472,000            
Holding and distribution pattern under operating agreement   In general, the operating agreement of PruRose Monaco provides that operating cash flows are distributed to members first to Prudential and then to Monaco Holdings 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 Monaco Holdings provides, among other things, for the distributions of net cash flows to the members, first, in respect of unrecovered capital on a pro rata basis, with any remaining cash flow in accordance with their ownership percentages. The operating agreement of RoseGarden Monaco provides, among other things, for the distribution of available cash flow to the members in accordance with their ownership percentages.