Common and preferred stock	9 Months Ended
Sep. 30, 2015
Common and preferred stock	9. Common and preferred stock Included in the common stock outstanding as of September 30, 2015 and December 31, 2014 are 9.0 million shares of common stock loaned to Bank of America, N.A. under a share lending agreement dated August 18, 2010 in connection with the offering of $100.0 million aggregate principal amount of 2015 notes (see Note 6 — Senior convertible notes). Bank of America is obligated to return the borrowed shares (or, in certain circumstances, the cash value thereof) to the Company on or about the 45th business day following the date as of which the entire principal amount of the 2015 notes ceases to be outstanding, subject to extension or acceleration in certain circumstances or early termination at Bank of America’s option. The Company did not receive any proceeds from the sale of the borrowed shares by Bank of America, but the Company did receive a nominal lending fee of $0.01 per share from Bank of America for the use of borrowed shares. On October 23, 2015, the 9,000,000 borrowed shares were returned to the Company in accordance with the share lending agreement (see Note 16 – Subsequent events).

9. Common and preferred stock

Included in the common stock outstanding as of September 30, 2015 and December 31, 2014 are 9.0 million shares of common stock loaned to Bank of America, N.A. under a share lending agreement dated August 18, 2010 in connection with the offering of $100.0 million aggregate principal amount of 2015 notes (see Note 6 — Senior convertible notes). Bank of America is obligated to return the borrowed shares (or, in certain circumstances, the cash value thereof) to the Company on or about the 45th business day following the date as of which the entire principal amount of the 2015 notes ceases to be outstanding, subject to extension or acceleration in certain circumstances or early termination at Bank of America’s option. The Company did not receive any proceeds from the sale of the borrowed shares by Bank of America, but the Company did receive a nominal lending fee of $0.01 per share from Bank of America for the use of borrowed shares. On October 23, 2015, the 9,000,000 borrowed shares were returned to the Company in accordance with the share lending agreement (see Note 16 – Subsequent events).