Real Estate, Operating Real Estate, Real Estate Under Construction, and Equity Investment in Real Estate - Property Plant and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2020	Dec. 31, 2019
Investments in real estate:
Net investments in real estate	$ 1,962,426	$ 1,946,720
Real Estate
Investments in real estate:
Land	193,353	196,693
Buildings and improvements	992,285	1,003,952
Less: Accumulated depreciation	(148,173)	(135,922)
Net investments in real estate	1,037,465	1,064,723
Operating Real Estate
Investments in real estate:
Land	77,649	78,240
Buildings and improvements	427,211	434,245
Less: Accumulated depreciation	(64,489)	(57,237)
Net investments in real estate	$ 440,371	$ 455,248

Aggregate of the carrying amounts as of the balance sheet date of investments in building and building improvements.

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Amount before accumulated depletion of real estate held for productive use, excluding land held for sale.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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The cumulative amount of depreciation for real estate property held for investment purposes.

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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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