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Investments in Properties (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Investments in Properties
Land	$ 1,013,832	$ 1,019,723
Acquired ground lease	6,526	6,721
Buildings and improvements	22,050,895	21,914,091
Tenant improvements	698,458	684,915
Total investments in operating properties	23,769,711	23,625,450
Accumulated depreciation and amortization	(6,467,233)	(6,210,281)
Investments in operating properties, net	17,302,478	17,415,169
Construction in progress and space held for development	3,523,485	3,213,389
Land held for future development	107,002	133,683
Investments in properties, net	$ 20,932,965	$ 20,762,241

X

- Definition

Gross long-term land leases capitalized as part of real property.

+ References

No definition available.

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- Definition

Amount of real estate investment property, net of accumulated depreciation, which may include (1) land available-for-sale; (2) investments in building and building improvements; (3) tenant allowances; and (4) acquired ground leases.

+ References

No definition available.

+ Details

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X

- Definition

The current amount of expenditures for a real estate project that has not yet been completed.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
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- Definition

Carrying amount net of impairment reserves as of the balance sheet date primarily consisting of deposits for land purchases (including option payments), related acquisition costs, and land which is not expected to be developed in the next two years.

+ References

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- Definition

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

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- Definition

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

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- Definition

The cumulative amount of depreciation for real estate property held for investment purposes.

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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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- Definition

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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