Investments in Unconsolidated Real Estate - Summary of Investments In Unconsolidated Real Estate Entities (Details) $ in Thousands	9 Months Ended
Sep. 30, 2022 USD ($) unit	Dec. 31, 2021 USD ($)
Schedule of Equity Method Investments [Line Items]
Units	1,863
Investments in unconsolidated real estate entities \| $	$ 70,608	$ 24,999
Number o f real estate investment units complete	178
Metropolis at Innsbrook \| Richmond, VA
Schedule of Equity Method Investments [Line Items]
Units	402
IRT Ownership Interest	84.80%
Investments in unconsolidated real estate entities \| $	$ 17,152	14,632
Views of Music City II / The Crockett \| Nashville, TN
Schedule of Equity Method Investments [Line Items]
Units	408
IRT Ownership Interest	50.00%
Investments in unconsolidated real estate entities \| $	$ 11,198	10,368
Virtuoso \| Huntsville, AL
Schedule of Equity Method Investments [Line Items]
Units	400
IRT Ownership Interest	90.00%
Investments in unconsolidated real estate entities \| $	$ 14,170	0
Lakeline Station \| Austin, TX
Schedule of Equity Method Investments [Line Items]
Units	378
IRT Ownership Interest	90.00%
Investments in unconsolidated real estate entities \| $	$ 18,810	0
The Mustang \| Austin, TX
Schedule of Equity Method Investments [Line Items]
Units	275
IRT Ownership Interest	85.00%
Investments in unconsolidated real estate entities \| $	$ 9,278	$ 0

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