Investments In Unconsolidated Joint Ventures (PruRose Riverwalk G, L.L.C.) (Narrative) (Details) (USD $)			12 Months Ended	2 Months Ended	12 Months Ended							12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013 West New York Parcel G Apartments Investors, L.L.C. [Member]	Dec. 31, 2012 Riverwalk G Urban Renwal, L.L.C. [Member]	Dec. 31, 2013 Riverwalk G Urban Renwal, L.L.C. [Member]	Dec. 31, 2013 Prudential [Member]	Dec. 31, 2013 PruRose Riverwalk G, L.L.C. [Member]	Oct. 23, 2012 PruRose Riverwalk G, L.L.C. [Member] item	Dec. 31, 2013 PruRose Riverwalk G, L.L.C. [Member] West New York Parcel G Apartments Investors, L.L.C. [Member]	Oct. 23, 2012 PruRose Riverwalk G's Interest In Riverwalk G Urban Renewal [Member]	Dec. 31, 2013 Construction Loan [Member] West New York Parcel G Apartments Investors, L.L.C. [Member]	Dec. 31, 2013 Construction Loan [Member] Riverwalk G Urban Renwal, L.L.C. [Member]	Dec. 31, 2013 RiverTrace Project [Member] West New York Parcel G Apartments Investors, L.L.C. [Member]
Schedule of Equity Method Investments [Line Items]
Indirect residual ownership percentage								25.00%
Number of stories								12
Number of units								316
Percentage of interest in venture								50.00%
Investment ownership percentage										50.00%
Total project costs			$ 118,100,000										$ 35,000,000
Maximum borrowing capacity											83,100,000	83,100,000
Percentage of operating return on capital					7.75%
Capital balance	1,863,172,000	2,012,065,000							35,000,000
Accumulated unpaid operating return									6,800,000
Percentage of capital event cash flows distributed			100.00%
Internal rate of return			7.75%
Amount of company's initial distributions to be redirected						1,300,000
Amount outstanding												65,200,000
Interest rate												6.00%
Loan maturity date												Jul. 01, 2021
Amount of debt guaranteed by company					15,000,000
Period of loan guarantee by company following completion of project												6 months
Development management and other services fees				$ 133,000	$ 409,000
Holding and distribution pattern under operating agreement					In general, the operating agreement of Riverwalk G provides that operating cash flows are distributed to members first to Investor and then to PruRose Riverwalk based on a 7.75 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. As of December 31, 2013, Investor had a capital balance of $35 million and an unpaid operating return of $6.8 million. It is not anticipated that PruRose Riverwalk will be required to fund any capital.		The operating agreement of PruRose Riverwalk provides, among other things, for the distribution of net cash flow to the members in accordance with their ownership percentages. In addition, the operating agreement requires that the initial $1.3 million in distributions to the Company be redirected to Prudential.