Fair Value Measurements - Assets and Liabilities Carried at Fair Value Measured on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Assets
Total assets at fair value	$ 1,761,363	$ 1,572,496
Marketable Equity Securities
Assets
Total assets at fair value	1,761,312	1,567,607
Interest Rate Cap
Assets
Total assets at fair value	51	4,889
Level 1
Assets
Total assets at fair value	1,761,312	1,567,607
Level 1 | Marketable Equity Securities
Assets
Total assets at fair value	1,761,312	1,567,607
Level 2
Assets
Total assets at fair value	51	4,889
Level 2 | Interest Rate Cap
Assets
Total assets at fair value	$ 51	$ 4,889