Consolidated Statements of Comprehensive Income/(Loss) - USD ($)	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income/(loss)	$ 12,574,684	$ (43,796,685)	$ (223,522,435)
Total other comprehensive income/(loss)	0	0	0
Comprehensive income/(loss)	$ 12,574,684	$ (43,796,685)	$ (223,522,435)