Debt Financing - Additional Information (Details)	1 Months Ended		3 Months Ended
	Mar. 31, 2017 USD ($) Trust	Feb. 28, 2017 USD ($) Agreement	Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)
Debt Instrument [Line Items]
Deferred financing costs - net			$ 3,865,703
Term A/B Trust [Member]
Debt Instrument [Line Items]
Deferred financing costs - net	$ 47,000	$ 1,200,000		$ 47,000
Number of term trusts refinanced | Trust	4
Term A/B Trust [Member] | Farnam Capital Advisors, LLC [Member]
Debt Instrument [Line Items]
Consulting fees		$ 921,000	$ 0	$ 921,000
Mortgage Revenue Bonds [Member] | Term A/B Trust [Member]
Debt Instrument [Line Items]
Number of new agreements | Agreement		19