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Real Estate Investment Property, Land

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Amount before accumulated depreciation of building structures held for productive use including addition, improvement, or renovation to the structure, including, but not limited to, interior masonry, interior flooring, electrical, and plumbing.

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Value of property contributed in noncash investing and financing activities.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before accumulated deprecation and depletion of additions or improvements to real estate held for productive use. Examples include, but are not limited to, walkways, driveways, fences, and parking lots.

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No definition available.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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Amount of real estate investment property 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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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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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of accumulated depreciation for real estate owned (REO).

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Carrying amount as of the balance sheet date of improvements having a life longer than one year that were made for the benefit of one or more tenants.

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REAL ESTATE ASSETS (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
REAL ESTATE ASSETS (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Sep. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Real Estate [Line Items]
Payments to acquire real estate and real estate joint ventures					$ 456,100
Buildings	$ 102,553			$ 102,553		$ 102,375
Tenant improvements	4,506			4,506		4,501
Land	2,437			2,437		2,437
Land improvements	484			484		484
Total real estate assets	109,980			109,980		109,797
Less: accumulated depreciation	(12,165)			(12,165)		(8,681)
Total investment in real estate, net	97,815			97,815		101,116
Finite-lived intangibles assets, net	5,745			5,745		8,070
Depreciation and amortization expense for real estate assets	1,700	$ 1,900		$ 5,200	$ 5,800
In-place lease intangibles
Real Estate [Line Items]
Intangible assets, weighted average useful lives (in years)				45 months
Finite-lived intangible assets, gross	11,275			$ 11,275		11,389
Less: accumulated amortization	(7,687)			(7,687)		(5,927)
Finite-lived intangibles assets, net	3,588			$ 3,588		5,462
Above-market lease intangibles
Real Estate [Line Items]
Intangible assets, weighted average useful lives (in years)				45 months
Finite-lived intangible assets, gross	3,623			$ 3,623		3,623
Less: accumulated amortization	(1,466)			(1,466)		(1,015)
Finite-lived intangibles assets, net	$ 2,157			2,157		$ 2,608
Tall Tower
Real Estate [Line Items]
Payments to acquire real estate and real estate joint ventures				$ 110,000
A-Street Building
Real Estate [Line Items]
Payments to acquire real estate and real estate joint ventures			$ 9,200
Tenant improvements
Real Estate [Line Items]
Property and equipment estimated useful lives (in years)				15 years
Land improvements
Real Estate [Line Items]
Property and equipment estimated useful lives (in years)				15 years
Minimum \| Buildings
Real Estate [Line Items]
Property and equipment estimated useful lives (in years)				20 years
Maximum \| Buildings
Real Estate [Line Items]
Property and equipment estimated useful lives (in years)				30 years