Long-Term Debt - Schedule of Long-Term Debt (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Credit Facility	$ 38,300,000
4.50% Convertible Senior Notes due 2020, net of discount	69,759,722
Total Long-Term Debt	168,459,722	$ 103,940,011
UBS Mortgage Note Payable [Member]
Debt Instrument [Line Items]
Mortgage Note Payable	7,300,000
BOA Mortgage Note Payable [Member]
Debt Instrument [Line Items]
Mortgage Note Payable	23,100,000
Wells Fargo Mortgage Note Payable [Member]
Debt Instrument [Line Items]
Mortgage Note Payable	$ 30,000,000