Investments in Unconsolidated Entities - Summary of Investments in Unconsolidated Entities (Details)	12 Months Ended
	Dec. 31, 2020 USD ($) Unit	Dec. 31, 2019 USD ($)
Schedule Of Equity Method Investments [Line Items]
Units | Unit	3,756
Carrying Value	$ 106,878,570	$ 86,981,864
Maximum Remaining Equity Commitment	$ 17,729,428
Vantage At Waco [Member] | Waco T X [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	August 2016
Construction Completion Date	2018-05
Carrying Value		9,337,166
Vantage At Powdersville [Member] | Powdersville S C [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	November 2017
Construction Completion Date	2020-02
Carrying Value	$ 12,295,801	12,295,801
Vantage At Stone Creek [Member] | Omaha, NE [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	294
Month Commitment Executed	March 2018
Construction Completion Date	2020-04
Carrying Value	$ 7,840,500	7,840,500
Vantage At Bulverde [Member] | Bulverde T X [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	March 2018
Construction Completion Date	2019-08
Carrying Value	$ 10,570,000	10,144,052
Vantage At Germantown [Member] | Germantown, TN [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	June 2018
Construction Completion Date	2020-03
Carrying Value	$ 12,425,000	11,745,155
Vantage At Murfreesboro [Member] | Murfreesboro, TN [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	September 2018
Construction Completion Date	2020-10
Carrying Value	$ 14,640,000	13,516,425
Vantage At Coventry [Member] | Omaha, NE [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	294
Month Commitment Executed	September 2018
Carrying Value	$ 9,007,435	9,007,435
Vantage At Conroe [Member] | Conroe T X [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	April 2019
Carrying Value	$ 10,406,895	8,078,519
Vantage At Westover Hills [Member] | San Antonio, TX [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	January 2020
Carrying Value	$ 8,021,544
Vantage At O'Connor [Member] | San Antonio, TX [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	October 2019
Carrying Value	$ 8,245,890	$ 5,016,811
Vantage At Tomball [Member] | Tomball TX [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	August 2020
Carrying Value	$ 9,280,134
Maximum Remaining Equity Commitment	$ 1,425,562
Vantage At Hutto [Member] | Hutto TX [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	November 2020
Carrying Value	$ 3,163,676
Maximum Remaining Equity Commitment	$ 7,359,952
Vantage At San Marcos [Member] | San Marcos TX [Member]
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Month Commitment Executed	November 2020
Carrying Value	$ 981,695
Maximum Remaining Equity Commitment	$ 8,943,914