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Investment in Real Estate Partnership - Unconsolidated Real Estate Partnership Investments (Details) $ in Thousands	Sep. 30, 2020 USD ($) ft² property	Dec. 31, 2019 USD ($) ft² property
Schedule of Equity Method Investments [Line Items]
Investment in real estate partnership	$ 34,849	$ 34,097
Pillarstone Capital REIT Operating Partnership LP [Member]
Schedule of Equity Method Investments [Line Items]
Ownership interest	81.40%
Investment in real estate partnership	$ 34,849	$ 34,097
Pillarstone Capital REIT Operating Partnership LP [Member] | Unconsolidated Properties [Member]
Schedule of Equity Method Investments [Line Items]
Number of properties | property	8	8
Gross leasable area (in square feet) | ft²	926,798	926,798

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- Definition

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

+ References

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Publisher FASB
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Net rentable area for properties owned.

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The number of real estate properties owned as of the balance sheet date.

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