Accounts Payable, Accrued Expenses and Other Liabilities - Summary of Partnership's Accounts Payable, Accrued Expenses and Other Liabilities (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Payables And Accruals [Abstract]
Accounts payable	$ 93,834	$ 230,631
Accrued expenses	2,529,982	2,956,368
Accrued interest expense	2,690,076	2,270,348
Operating lease liabilities	2,138,783
Other liabilities	1,583,492	2,086,475
Total accounts payable, accrued expenses and other liabilities	$ 9,036,167	$ 7,543,822