CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (unaudited) (USD $)	Total	Common Shares [Member]	Additional Paid-in Capital [Member]	Net Loss [Member]	Accumulated Deficit [Member]	Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2010	$ 669,086,518	$ 625,604	$ 738,251,158		$ (47,654,737)	$ (22,135,507)
Balance (in shares) at Dec. 31, 2010		62,560,436
Net loss	(7,248,559)			(7,248,559)	(7,248,559)
Net unrealized gain on derivatives	5,431,940					5,431,940
Comprehensive income	(1,816,619)
Issuance of common shares and shares withheld for employee tax	(1,210,177)	826	(1,211,003)
Issuance of common shares and shares withheld for employee (in shares)		82,550
Non-cash compensation	4,939,137		4,939,137
Balance at Jun. 30, 2011	$ 670,998,859	$ 626,430	$ 741,979,292		$ (54,903,296)	$ (16,703,567)
Balance (in shares) at Jun. 30, 2011		62,642,986