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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:    
Net loss $ (168,617) $ (87,464)
Adjustments to reconcile loss to net cash used in operating activities:    
Depreciation and amortization 123 48
Stock-based compensation 13,344 6,022
Shares issued for services 24 57
Excess tax benefit from stock-based awards (10,106) (1,571)
Accrued interest payable 1,094  
Expense for commitment fee 0 1,000
Amortization of debt discount and debt issuance costs 9,365  
Amortization of Laxdale milestone 108  
Loss on change in fair value of derivative liability 68,686 53,403
Changes in assets and liabilities:    
Other current assets (2,273) (1,543)
Inventory (8,989)  
Other non-current assets (17,355) 288
Change in lease liability (55) (39)
Accounts payable and other liabilities 33,075 932
Net cash used in operating activities (78,539) (27,863)
CASH FLOWS FROM INVESTING ACTIVITIES:    
Purchases of equipment (477) (33)
Purchase of long term investment (1,238) (1,650)
Net cash used in investing activities (1,715) (1,683)
CASH FLOWS FROM FINANCING ACTIVITIES:    
Proceeds from issuance of common stock, net of transaction costs   98,654
Proceeds from exercise of stock options, net of transaction costs 7,834 5,073
Proceeds from exercise of warrants, net of transaction costs 16,526 18,661
Excess tax benefit from stock-based awards 10,106 1,571
Proceeds from issuance of exchangeable debt, net of transaction costs 144,316  
Payments under capital leases (20)  
Net cash provided by financing activities 178,762 123,959
NET INCREASE IN CASH AND CASH EQUIVALENTS 98,508 94,413
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD 116,602 31,442
CASH AND CASH EQUIVALENTS, END OF PERIOD 215,110 125,855
Cash paid during the year for:    
Interest 2,713  
Income taxes 697 581
Non-cash transactions:    
Transfer from derivative liability to equity, fair value of warrants exercised 103,885 129,458
Warrant
   
Adjustments to reconcile loss to net cash used in operating activities:    
Stock-based compensation $ 3,037 $ 1,004