Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (7,656,110)	$ (6,787,674)
Foreign currency translation adjustment	(4,697)	12,064
Comprehensive loss	$ (7,660,807)	$ (6,775,610)