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Area of a real estate property.

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The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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IMPAIRMENT IMPAIRMENT (Narrative) (Details)	3 Months Ended			6 Months Ended		12 Months Ended
IMPAIRMENT IMPAIRMENT (Narrative) (Details)	Jun. 30, 2020 USD ($) hotel_room	Mar. 31, 2020 USD ($) ft²	Jun. 30, 2019 USD ($)	Jun. 30, 2020 USD ($) hotel_room	Jun. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Real Estate [Line Items]
Impairment of real estate	$ 0		$ 0	$ 48,738,000	$ 0
Equity method investment, impairment						$ 0
Outlet Collection, Riverwalk
Real Estate [Line Items]
Impairment of real estate	0	$ 48,700,000	0	48,738,000	0
Area of real estate property (in sqft) \| ft²		268,556
Assets, fair value disclosure		$ 46,800,000
Fair value capitalization rate		0.10
Equity Method Investments \| Mr. C Seaport
Real Estate [Line Items]
Equity method investment, impairment	6,000,000		0	$ 6,000,000	0
Equity Method Investments \| Seaport District revenues \| Mr. C Seaport
Real Estate [Line Items]
Equity method investment, impairment	$ 6,000,000.0
Number of hotel rooms \| hotel_room	66			66
Equity method investment, ownership percentage	35.00%			35.00%		35.00%
Condominium Inventory
Real Estate [Line Items]
Impairment of real estate	$ 5,078,000		$ 0	$ 5,078,000	$ 0