Consolidated Statements of Comprehensive Loss (Unaudited) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Net loss	$ (37,630,051)	$ (29,837,360)	$ (39,294,848)	$ (70,377,128)
Other comprehensive income:
Change in unrealized loss on investment	(9,812,255)	(91,468)	(9,847,473)	(852,310)
Realized loss on investment	7,646,805		10,613,082
Net unrealized gain on derivatives	657,347	1,725,595	2,243,833	4,988,089
Total other comprehensive income(loss)	(1,508,103)	1,634,127	3,009,442	4,135,779
Comprehensive loss	$ (39,138,154)	$ (28,203,233)	$ (36,285,406)	$ (66,241,349)