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MORTGAGE AND OTHER INDEBTEDNESS, NET (Fixed Rate Loans Financed) (Details) $ in Thousands	1 Months Ended			12 Months Ended
	Dec. 31, 2016 USD ($) extension_option	Jun. 30, 2016 USD ($)	Apr. 30, 2016 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($) extension_option	Dec. 31, 2016 extension_option	Jan. 01, 2018	Nov. 30, 2016
Debt Instrument [Line Items]
Net unamortized premiums							$ 12,031
Real Estate Loan
Debt Instrument [Line Items]
Extinguishment of debt		$ 98,181
Hickory Point
Debt Instrument [Line Items]
Stated Interest Rate			5.85%
Amount Financed			$ 27,446
Extension option, term			1 year
Hamilton Place
Debt Instrument [Line Items]
Stated Interest Rate		4.36%
Amount Financed		$ 107,000
Hamilton Place | Real Estate Loan
Debt Instrument [Line Items]
Stated Interest Rate		5.86%
Cary Towne Center
Debt Instrument [Line Items]
Stated Interest Rate	4.00%							4.00%		8.50%
Amount Financed	$ 46,716
Extension option, term								2 years
Number of extension options available (extension option) | extension_option	1							1
Greenbrier Mall
Debt Instrument [Line Items]
Stated Interest Rate	5.00%							5.00%		5.91%
Amount Financed	$ 70,801
Extension option, term								1 year
Greenbrier Mall | Scenario, Forecast
Debt Instrument [Line Items]
Stated Interest Rate									5.4075%
Monthly principal payments required				$ 325	$ 300	$ 225
Fixed Rate Operating Loans
Debt Instrument [Line Items]
Net unamortized premiums							$ (199)
Weighted average remaining term to maturity							3 years 6 months 25 days
Minimum
Debt Instrument [Line Items]
Number of extension options available (extension option) | extension_option							1
Minimum | Fixed Rate Operating Loans
Debt Instrument [Line Items]
Fixed interest, percentage rate							4.00%
Maximum | Fixed Rate Operating Loans
Debt Instrument [Line Items]
Fixed interest, percentage rate							8.00%

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