Noncontrolling Interests - Variable Interest Entities (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Variable interest entity
Net real estate	$ 16,570,581	$ 16,399,997
Total assets	18,796,442	18,554,796
Total liabilities	8,378,803	8,750,638
Primary Beneficiary
Variable interest entity
Net real estate	647,877	654,305
Total assets	737,990	744,394
Total liabilities	$ 52,613	$ 52,087

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 210
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Sum of the carrying amounts as of the balance sheet date of all liabilities that are recognized. Liabilities are probable future sacrifices of economic benefits arising from present obligations of an entity to transfer assets or provide services to other entities in the future.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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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