Capital Stock	9 Months Ended
Sep. 30, 2014
Equity [Abstract]
Capital Stock	Capital Stock On April 16, 2013, the Company entered into separate, privately negotiated exchange agreements with certain holders of its Puttable Equity-Linked Senior Notes due 2014 (“2014 Senior Notes”) to exchange such notes for Class A common stock. The noteholders exchanged $138,853,000 in aggregate principal amount of 2014 Senior Notes for a total of 9,549,721 shares of Class A common stock and a cash payment of $4,860,000 for additional exchange consideration, accrued interest and in lieu of fractional shares. On May 31, 2013, pursuant to the terms of the Indenture governing the 2014 Senior Notes, the Company issued a put termination notice to the noteholders. Pursuant to the Indenture, following the put termination notice, holders of the 2014 Senior Notes were permitted to put such notes to the Company through June 20, 2013. As of July 12, 2013, the last settlement date for noteholders to put the 2014 Senior Notes to the Company, $60,033,000 aggregate principal amount of the 2014 Senior Notes were put, for which noteholders received 4,128,806 shares of Class A common stock and cash payments totaling $1,088,000 for interest payable to October 15, 2013 and in lieu of fractional shares. From January 31, 2013 to March 14, 2013, 109,768 shares of Series A preferred stock were converted by holders into 362,990 shares of Class A common stock in accordance with the original terms of the Series A preferred stock. On March 15, 2013, the Company redeemed the remaining 101,270 shares of Series A preferred stock for approximately $5,100,000, the aggregate amount of liquidation preference plus the dividend that was due and payable on March 15, 2013. On March 13, 2013, the Company settled an equity call hedge transaction that was entered into in connection with the original issuance of the Series A preferred stock. As a result, the Company received 765,134 shares of Class A common stock valued at $16.82 per share for a total of $12,868,000 and cash payments of $10,231,000. In accordance with accounting guidance on equity hedge transactions, amounts received upon settlement of equity call hedge transactions in which the Company has the choice of net share settlement or net cash settlement are reflected as an increase to additional paid-in capital.

Capital Stock

9 Months Ended

Sep. 30, 2014

On April 16, 2013, the Company entered into separate, privately negotiated exchange agreements with certain holders of its Puttable Equity-Linked Senior Notes due 2014 (“2014 Senior Notes”) to exchange such notes for Class A common stock. The noteholders exchanged $138,853,000 in aggregate principal amount of 2014 Senior Notes for a total of 9,549,721 shares of Class A common stock and a cash payment of $4,860,000 for additional exchange consideration, accrued interest and in lieu of fractional shares.

On May 31, 2013, pursuant to the terms of the Indenture governing the 2014 Senior Notes, the Company issued a put termination notice to the noteholders. Pursuant to the Indenture, following the put termination notice, holders of the 2014 Senior Notes were permitted to put such notes to the Company through June 20, 2013. As of July 12, 2013, the last settlement date for noteholders to put the 2014 Senior Notes to the Company, $60,033,000 aggregate principal amount of the 2014 Senior Notes were put, for which noteholders received 4,128,806 shares of Class A common stock and cash payments totaling $1,088,000 for interest payable to October 15, 2013 and in lieu of fractional shares.

From January 31, 2013 to March 14, 2013, 109,768 shares of Series A preferred stock were converted by holders into 362,990 shares of Class A common stock in accordance with the original terms of the Series A preferred stock. On March 15, 2013, the Company redeemed the remaining 101,270 shares of Series A preferred stock for approximately $5,100,000, the aggregate amount of liquidation preference plus the dividend that was due and payable on March 15, 2013.

On March 13, 2013, the Company settled an equity call hedge transaction that was entered into in connection with the original issuance of the Series A preferred stock. As a result, the Company received 765,134 shares of Class A common stock valued at $16.82 per share for a total of $12,868,000 and cash payments of $10,231,000. In accordance with accounting guidance on equity hedge transactions, amounts received upon settlement of equity call hedge transactions in which the Company has the choice of net share settlement or net cash settlement are reflected as an increase to additional paid-in capital.