Investments in Real Estate Partnerships - Schedule of Acquisitions by Real Estate Partnerships (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Ownership Percentage	0.00%	0.00%
Purchase Price		$ 287,527
Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible Assets		7,153
Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible Assets		$ 21,649
Unconsolidated Properties [Member] \| Eastfield at Baybrook [Member]
Business Acquisition [Line Items]
Date Purchased	Nov. 13, 2020
Property Name	Eastfield at Baybrook
City/State	Houston, TX
Business Acquisition, Description of Acquired Entity	Development
Business Acquisition, Co-investment Partner	Other
Ownership Percentage	50.00%
Purchase Price	$ 4,491

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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