Fair Value of Financial Instruments - Summary of Fair Value of Partnership's Financial Liabilities (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Mortgages payable and other secured financing	$ 25,860,469	$ 25,984,872
Carrying (Reported) Amount, Fair Value Disclosure [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Debt financing	711,788,901	673,957,640
Unsecured lines of credit		7,475,000
Mortgages payable and other secured financing	25,860,469	25,984,872
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis Valuation Techniques [Line Items]
Debt financing	745,686,708	709,760,933
Unsecured lines of credit		7,475,000
Mortgages payable and other secured financing	$ 25,862,025	$ 25,986,514