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Subsequent Events - Additional Information (Details) - USD ($)
1 Months Ended
Apr. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Oct. 31, 2017
Aug. 31, 2017
Mar. 31, 2017
Dec. 31, 2016
Sep. 30, 2016
May 31, 2016
Mar. 31, 2016
Debt Instrument [Line Items]                    
Redemption Price per Unit       $ 10.00 $ 10.00 $ 10.00 $ 10.00 $ 10.00 $ 10.00 $ 10.00
Redeemable preferred units, outstanding   9,500,000 9,500,000              
Subsequent Event | Series A-1 Preferred Units [Member]                    
Debt Instrument [Line Items]                    
Redemption Price per Unit $ 10.00                  
Annual rate of non-cumulative cash distributions 3.00%                  
Redeemable preferred units, registered for offering and issuance 9,450,000                  
Redeemable preferred units, outstanding 0                  
Jackson Manor Apartments [Member] | Subsequent Event | Jackson, MS [Member] | Mortgage Revenue Bonds [Member]                    
Debt Instrument [Line Items]                    
MRB Partnership advances $ 4,150,000                  
Vantage at Loveland [Member] | Subsequent Event                    
Debt Instrument [Line Items]                    
Equity commitment of fund construction 16,300,000                  
Equity commitment of fund construction upon occurrence of certain events $ 18,200,000