MORTGAGES, NOTES AND LOANS PAYABLE (Property Level Debt Narrative) (Details) $ in Thousands		1 Months Ended	3 Months Ended
		Jan. 31, 2015	Mar. 31, 2016 USD ($) property	Mar. 31, 2015 USD ($)	Dec. 31, 2015 USD ($) property	Dec. 01, 2015 USD ($)	Oct. 08, 2015 USD ($)	Sep. 30, 2015	Sep. 11, 2015 USD ($)	Dec. 31, 2014 USD ($)	Nov. 22, 2013 USD ($)
Debt Instrument [Line Items]
Current borrowing capacity											$ 510,000
Number of real estate properties | property			36		36
Long-term Debt			$ 1,735,926		$ 1,694,841
Principal payments on mortgages, notes and loans payable			(118,230)	$ (50,487)
Liabilities Subject to Compromise, Environmental Contingencies			$ 5,400
Gateway Mall [Member]
Debt Instrument [Line Items]
Long-term Debt	[1]				$ 75,000	$ 0
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	[2]		3.64%
Property Level Debt [Member]
Debt Instrument [Line Items]
Number of real estate properties | property			19		19
Long-term Debt			$ 1,350,000		$ 1,360,000
Market rate adjustments			$ 800		$ 300
Weighted average interest rate			4.30%		4.40%
NewPark Mall [Member]
Debt Instrument [Line Items]
Long-term Debt					$ 114,245				$ 64,655
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate			3.22%
GreenvilleMall [Member]
Debt Instrument [Line Items]
Long-term Debt	[1]				45,500		$ 40,171
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	[3]		4.46%
Non Recourse Mortgage Loan [Member] | Gateway Mall [Member]
Debt Instrument [Line Items]
Long Term Debt, Length of Extension		1 year
Debt Instrument, Interest Only Term		4 years
Long-term Debt						$ 75,000
Non Recourse Mortgage Loan [Member] | GreenvilleMall [Member]
Debt Instrument [Line Items]
Long-term Debt							$ 45,500
Interest rate							4.46%	5.29%
Weighted Average [Member] | Property Level Debt [Member]
Debt Instrument [Line Items]
Term			5 years 2 months
Secured Debt [Member]
Debt Instrument [Line Items]
Current borrowing capacity					$ 595,000					$ 545,000

[1] In March 2016, the loan associated with The Centre at Salisbury was refinanced with a partial non-recourse mortgage loan for $105.0 million. The initial funding of $97.5 million was used to retire the outstanding mortgage loan. The loan bears interest at floating rate of LIBOR (30 day) plus 260 basis points, matures in March 2019 and has a one year extension option.

[2] {F|ahBzfndlYmZpbGluZ3MtaHJkcmoLEgZYTUxEb2MiXlhCUkxEb2NHZW5JbmZvOjYxMDM4OWJjMjRlZTRiMmI5NWJjMDFjNTUwYTAxNjk3fFRleHRTZWxlY3Rpb246NjFBQTAzQzc3MjNGNTQwMEEzNDk3Q0M0NTc3QkVENzMM}

[3] See the significant property loan refinancings and acquisitions table below, under "—Property-Level Debt" in this Note 5 for additional information regarding the debt related to each property.