Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 152,223	$ 51,350
Restricted cash	100	100
Prepaid expenses and other current assets	1,165	85
Total current assets	153,488	51,535
Property, plant and equipment, net	125,502	34,880
Intangible assets, net	2,281	2,426
Other assets	300
Total assets	281,571	88,841
Current liabilities:
Current portion of long-term debt, net of discount	2,617	4,480
Accounts payable	3,408	3,207
Accrued liabilities	4,358	671
Convertible preferred stock warrants liability		3,185
Total current liabilities	10,383	11,543
Long-term debt, less current portion, net of discount	29,082	5,037
Total liabilities	39,465	16,580
Commitments and contingencies (Note 8)
Stockholders' equity (deficit):
Preferred stock - $0.0001 par value, 2,000,000 shares authorized, none issued and outstanding
Additional paid-in capital	357,534	4,199
Deficit accumulated during the development stage	(115,438)	(66,324)
Total stockholders' equity (deficit)	242,106	(62,123)
Total liabilities, convertible preferred stock and stockholders' equity (deficit)	281,571	88,841
Class A Common Stock
Stockholders' equity (deficit):
Common stock	4
Total stockholders' equity (deficit)	4
Class B Common Stock
Stockholders' equity (deficit):
Common stock	6	2
Total stockholders' equity (deficit)	6	2
Series A Convertible Preferred Stock
Stockholders' equity (deficit):
Preferred stock - $0.0001 par value, 2,000,000 shares authorized, none issued and outstanding		4,360
Series A-1 Convertible Preferred Stock
Stockholders' equity (deficit):
Preferred stock - $0.0001 par value, 2,000,000 shares authorized, none issued and outstanding		10,024
Series B Convertible Preferred Stock
Stockholders' equity (deficit):
Preferred stock - $0.0001 par value, 2,000,000 shares authorized, none issued and outstanding		$ 120,000