Fair Value of Financial Instruments - Summary of Fair Value of Partnership's Financial Liabilities (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Fair Value Inputs Liabilities Quantitative Information [Line Items]
Mortgages payable and other secured financing	$ 35,453,563	$ 35,540,174
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value Inputs Liabilities Quantitative Information [Line Items]
Debt financing and LOCs	600,425,793	608,328,347
Mortgages payable and other secured financing	35,453,563	35,540,174
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value Inputs Liabilities Quantitative Information [Line Items]
Debt financing and LOCs	605,077,761	618,412,150
Mortgages payable and other secured financing	$ 35,654,615	$ 35,767,924