Subsequent event	9 Months Ended
Sep. 30, 2012
Subsequent Events [Abstract]
Subsequent events	14. Subsequent events In October 2012, pursuant to a previously filed Shelf Registration, which was declared effective by the SEC on September 24, 2012, the Company sold in an underwritten public offering 40,000,000 shares of its common stock, together with warrants to purchase up to 30,000,000 shares of the Company’s common stock. In addition, the Company sold pursuant to the full exercise of an over-allotment option granted to the underwriters, an additional 6,000,000 shares of common stock , together with warrants to purchase up to an aggregate of 4,500,000 shares of common stock. All of the securities were sold together with a warrant for a combined purchase price of $2.00. The shares of common stock and warrants are immediately separable and were issued separately. Net proceeds from this offering were approximately $86.0 million (after deducting discounts and commissions to the underwriters and offering expenses), excluding any future proceeds from the exercise of the warrants. Each warrant entitles the holder to purchase 0.75 of a share of common stock. The warrants are exercisable at $2.60 per share and will expire 53 weeks from the date of the issuance. Concurrent with the underwritten public offering, the Company entered into a Common Stock and Warrant Purchase agreement, in which the Company is required to issue and sell and The Mann Group is obligated to purchase 40,000,000 restricted shares of the Company’s common stock and 40,000,000 restricted warrants to purchase up to an aggregate of 30,000,000 restricted shares of the Company’s common stock in a separate private placement. The restricted shares will be sold to The Mann Group at $2.59 per share (the consolidated closing bid price of the Company’s common stock on October 17, 2012), and the restricted warrants will be sold to The Mann Group at $0.125 for each share of the Company’s common stock underlying the warrants, in exchange for cancellation of outstanding principal under the $350 million amended and restated promissory note with The Mann Group. The restricted shares and warrants will be sold to The Mann Group for an aggregate purchase price of $107.4 million. Principal indebtedness cancelled in connection with the amended and restated promissory note will become available for reborrowing by the Company Any purchase by The Mann Group would be expected to close following receipt of stockholder approval to increase the Company’s authorized shares of common stock as necessary for the potential new issuances to The Mann Group. In addition, the Company amended and restated the promissory note to, among other things, extend the maturity date of the promissory note to January 1, 2014, extend the date through which the Company can borrow under the promissory note to September 30, 2013, and adjust the annual interest rate on all outstanding principal to the one year London Interbank Offered Rate (LIBOR) on December 31, 2012 plus 5%, effective beginning on January 1, 2013.

Subsequent event

9 Months Ended

Sep. 30, 2012

14. Subsequent events

In October 2012, pursuant to a previously filed Shelf Registration, which was declared effective by the SEC on September 24, 2012, the Company sold in an underwritten public offering 40,000,000 shares of its common stock, together with warrants to purchase up to 30,000,000 shares of the Company’s common stock. In addition, the Company sold pursuant to the full exercise of an over-allotment option granted to the underwriters, an additional 6,000,000 shares of common stock , together with warrants to purchase up to an aggregate of 4,500,000 shares of common stock. All of the securities were sold together with a warrant for a combined purchase price of $2.00. The shares of common stock and warrants are immediately separable and were issued separately. Net proceeds from this offering were approximately $86.0 million (after deducting discounts and commissions to the underwriters and offering expenses), excluding any future proceeds from the exercise of the warrants. Each warrant entitles the holder to purchase 0.75 of a share of common stock. The warrants are exercisable at $2.60 per share and will expire 53 weeks from the date of the issuance.

Concurrent with the underwritten public offering, the Company entered into a Common Stock and Warrant Purchase agreement, in which the Company is required to issue and sell and The Mann Group is obligated to purchase 40,000,000 restricted shares of the Company’s common stock and 40,000,000 restricted warrants to purchase up to an aggregate of 30,000,000 restricted shares of the Company’s common stock in a separate private placement. The restricted shares will be sold to The Mann Group at $2.59 per share (the consolidated closing bid price of the Company’s common stock on October 17, 2012), and the restricted warrants will be sold to The Mann Group at $0.125 for each share of the Company’s common stock underlying the warrants, in exchange for cancellation of outstanding principal under the $350 million amended and restated promissory note with The Mann Group. The restricted shares and warrants will be sold to The Mann Group for an aggregate purchase price of $107.4 million. Principal indebtedness cancelled in connection with the amended and restated promissory note will become available for reborrowing by the Company Any purchase by The Mann Group would be expected to close following receipt of stockholder approval to increase the Company’s authorized shares of common stock as necessary for the potential new issuances to The Mann Group.

In addition, the Company amended and restated the promissory note to, among other things, extend the maturity date of the promissory note to January 1, 2014, extend the date through which the Company can borrow under the promissory note to September 30, 2013, and adjust the annual interest rate on all outstanding principal to the one year London Interbank Offered Rate (LIBOR) on December 31, 2012 plus 5%, effective beginning on January 1, 2013.