Condensed Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 207,577	$ 51,350
Restricted cash	100	100
Prepaid expenses and other current assets	970	85
Total current assets	208,647	51,535
Property, plant and equipment, net	80,072	34,880
Intangible assets, net	2,330	2,426
Other assets	300	0
Total assets	291,349	88,841
Current liabilities:
Current portion of long-term debt, net of discount	1,629	4,480
Accounts payable	13,472	3,207
Accrued liabilities	2,376	671
Convertible preferred stock warrants liability	0	3,185
Total current liabilities	17,477	11,543
Long-term debt, less current portion, net of discount	29,707	5,037
Total liabilities	47,184	16,580
Commitments and contingencies (Note 8)
Stockholders' equity (deficit):
Preferred Stock	0	0
Additional paid-in capital	344,822	4,199
Deficit accumulated during the development stage	(100,667)	(66,324)
Total stockholders' equity (deficit)	244,165	(62,123)
Total liabilities, convertible preferred stock and stockholders' equity (deficit)	291,349	88,841
Class A Common Stock
Stockholders' equity (deficit):
Common Stock	4	0
Total stockholders' equity (deficit)	4	0
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	4,360
Series A-1 Convertible Preferred Stock
Stockholders' equity (deficit):
Preferred Stock	0	10,024
Series B Convertible Preferred Stock
Stockholders' equity (deficit):
Preferred Stock	$ 0	$ 120,000