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Indebtedness - Summary of Mortgage Payoffs (Details) - Mortgages $ in Thousands	12 Months Ended
	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Amount	$ 337,921
Weighted Average Interest Rate	3.83%
Mortgage Payoffs in 2020
Debt Instrument [Line Items]
Amount	$ 32,117
Weighted Average Interest Rate	4.07%
Mortgage Payoffs in 2021
Debt Instrument [Line Items]
Amount	$ 305,804
Weighted Average Interest Rate	3.81%
Millenia 700
Debt Instrument [Line Items]
Date	Jul. 09, 2020
Amount	$ 32,117
Weighted Average Interest Rate	4.07%
Crestmont
Debt Instrument [Line Items]
Date	Mar. 01, 2021
Amount	$ 5,975
Weighted Average Interest Rate	5.70%
Brier Creek
Debt Instrument [Line Items]
Date	Apr. 05, 2021
Amount	$ 13,629
Weighted Average Interest Rate	4.20%
Walnut Hill
Debt Instrument [Line Items]
Date	Jul. 01, 2021
Amount	$ 18,650
Weighted Average Interest Rate	3.42%
King's Landing
Debt Instrument [Line Items]
Date	Jul. 28, 2021
Amount	$ 19,618
Weighted Average Interest Rate	3.96%
Lenoxplace
Debt Instrument [Line Items]
Date	Jul. 30, 2021
Amount	$ 15,991
Weighted Average Interest Rate	3.73%
Stonebridge Crossing
Debt Instrument [Line Items]
Date	Oct. 01, 2021
Amount	$ 19,370
Weighted Average Interest Rate	3.41%
Aston
Debt Instrument [Line Items]
Date	Nov. 30, 2021
Amount	$ 24,141
Weighted Average Interest Rate	3.40%
Runaway Bay Apartments
Debt Instrument [Line Items]
Date	Nov. 30, 2021
Amount	$ 8,542
Weighted Average Interest Rate	3.59%
Avenues At Craig Ranch
Debt Instrument [Line Items]
Date	Nov. 30, 2021
Amount	$ 29,765
Weighted Average Interest Rate	3.28%
Creekside Corners
Debt Instrument [Line Items]
Date	Dec. 16, 2021
Amount	$ 22,437
Weighted Average Interest Rate	4.56%
Jamestown at St. Matthews
Debt Instrument [Line Items]
Date	Dec. 16, 2021
Amount	$ 22,098
Weighted Average Interest Rate	3.59%
Oxmoor Apartments
Debt Instrument [Line Items]
Date	Dec. 16, 2021
Amount	$ 34,591
Weighted Average Interest Rate	3.59%
Creekstone at RTP
Debt Instrument [Line Items]
Date	Dec. 17, 2021
Amount	$ 20,779
Weighted Average Interest Rate	3.88%
Fountains Southend
Debt Instrument [Line Items]
Date	Dec. 17, 2021
Amount	$ 19,884
Weighted Average Interest Rate	4.31%
Talison Row at Daniel Island
Debt Instrument [Line Items]
Date	Dec. 17, 2021
Amount	$ 30,334
Weighted Average Interest Rate	4.06%

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 1B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123466505&loc=SL123495323-112611

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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