FINANCIAL INSTRUMENTS AND FAIR VALUE MEASUREMENTS Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis (Details) (USD $)	12 Months Ended										12 Months Ended								12 Months Ended	1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Cash Flow Hedging [Member] Variable-Rate Derivatives [Member] Minimum [Member]	Dec. 31, 2013 Cash Flow Hedging [Member] Variable-Rate Derivatives [Member] Maximum [Member]	Dec. 31, 2013 Cash Flow Hedging [Member] Interest Rate Swap [Member] derivative_financial_instruments	Dec. 31, 2013 Cash Flow Hedging [Member] Interest Rate Swap [Member] Fixed-Rate Derivatives, Maturing between March 2015 and April 2023 [Member]	Dec. 31, 2013 Cash Flow Hedging [Member] Interest Rate Swap [Member] Fixed-Rate Derivatives, Maturing between March 2015 and April 2023 [Member] Minimum [Member]	Dec. 31, 2013 Cash Flow Hedging [Member] Interest Rate Swap [Member] Fixed-Rate Derivatives, Maturing between March 2015 and April 2023 [Member] Maximum [Member]	Dec. 31, 2013 Cash Flow Hedging [Member] Interest Rate Swap [Member] Variable-Rate Derivatives [Member] derivative_financial_instruments	Dec. 31, 2011 Fund I [Member] Granville Centre [Member]	Dec. 31, 2012 Mervyns I and Mervyns II [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 1 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Cash Flow Hedging [Member] Other Liabilities [Member]	Dec. 31, 2012 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Cash Flow Hedging [Member] Other Liabilities [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 2 [Member] Cash Flow Hedging [Member] Prepaid Expenses and Other Assets [Member]	Dec. 31, 2013 Fair Value, Measurements, Recurring [Member] Fair Value, Inputs, Level 3 [Member]	Dec. 31, 2013 Walnut Hill Plaza [Member] Fund III [Member]	Dec. 31, 2013 Sheepshead Bay [Member] Fund III [Member]	Dec. 31, 2013 Sheepshead Bay [Member] Fund III [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative financial instruments, assets													$ 0	$ 3,114,000			$ 3,000,000	$ 0
Derivative financial instruments, liabilities													0	2,066,000	2,000,000	4,400,000		0
Asset Impairment Charges	8,183,000	0	6,925,000								7,000,000	2,000,000							1,500,000		6,700,000
Sales Price																				20,200,000
Derivative, Number of Instruments Held						11				4
Derivative, Notional Amount							179,700,000			140,700,000
Derivative, Fixed Interest Rate								0.5225%	3.77%
Derivative, Cap Interest Rate				3.00%	4.25%
Accumulated other comprehensive income - unrealized loss on valuation of swap agreements	1,100,000	4,300,000
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months	$ 2,400,000