Operations - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Operations [Abstract]
Net loss	$ (10,949,911)	$ (2,618,595)	$ (12,478,144)	$ (5,311,733)