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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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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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The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

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IMPAIRMENT (Narrative) (Details)		3 Months Ended		12 Months Ended
IMPAIRMENT (Narrative) (Details)	Jul. 16, 2020 USD ($) hotel_room	Jun. 30, 2020 USD ($)	Mar. 31, 2020 USD ($)	Dec. 31, 2020 USD ($) ft²	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jul. 15, 2020
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charge for real estate				$ 48,738,000	$ 0	$ 0
Carrying value of the asset				6,685,069,000	6,760,355,000
Equity method investment, impairment					$ 0
Condominium Inventory
Impaired Long-Lived Assets Held and Used [Line Items]
Other asset impairment charge				$ 7,644,000
Measurement Input, Cap Rate \| Discounted Cash Flow \| Fair Value, Nonrecurring
Impaired Long-Lived Assets Held and Used [Line Items]
Measurement input			0.10	0.100
Mr.C Seaport
Impaired Long-Lived Assets Held and Used [Line Items]
Equity method investment, impairment		$ 6,000,000.0		$ 6,000,000
Equity method investment, ownership percentage							35.00%
Proceeds from sale of equity method investments	$ 800,000
Equity Method Investments \| Mr.C Seaport
Impaired Long-Lived Assets Held and Used [Line Items]
Number of hotel rooms \| hotel_room	66
Outlet Collection at Riverwalk
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment charge for real estate			$ 48,700,000	$ 48,738,000
Area of real estate property \| ft²				273,270
Carrying value of the asset			$ 46,800,000