Investment in Unconsolidated Entities - Summary of Investments in Unconsolidated Entities (Details)	Jun. 30, 2017 USD ($) Unit	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Schedule Of Equity Method Investments [Line Items]
Investment in unconsolidated entities (Note 9)	$ 31,950,493		$ 19,470,006
Maximum Remaining Equity Commitment	$ 9,660,272
Vantage at Corpus Christi [Member] | Corpus Christi T X
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Investment in unconsolidated entities (Note 9)	$ 8,907,869		8,447,343
Maximum Remaining Equity Commitment	$ 1,550,000
Vantage At Waco | Waco T X
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Investment in unconsolidated entities (Note 9)	$ 8,323,166		5,964,861
Maximum Remaining Equity Commitment	$ 1,592,039
Vantage At Boerne | Boerne T X
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Investment in unconsolidated entities (Note 9)	$ 7,870,971		$ 5,057,802
Maximum Remaining Equity Commitment	$ 1,475,936
Vantage At Panama City Beach
Schedule Of Equity Method Investments [Line Items]
Investment in unconsolidated entities (Note 9)		$ 11,700,000
Vantage At Panama City Beach | Panama City Beach FL
Schedule Of Equity Method Investments [Line Items]
Units | Unit	288
Investment in unconsolidated entities (Note 9)	$ 6,848,487
Maximum Remaining Equity Commitment	$ 5,042,297