Redeemable Convertible Preferred Stock	12 Months Ended
Dec. 31, 2013
Temporary Equity Disclosure [Abstract]
Redeemable Convertible Preferred Stock	Redeemable Convertible Preferred Stock The Company originally issued 8.1 million shares of its 6.25% Redeemable Convertible Preferred Stock at a price of $50.00 per share (the liquidation preference per share). The holders of the 6.25% Redeemable Convertible Preferred Stock were entitled to receive cumulative dividends at the rate of 6.25% per annum. The dividends were paid with approximately $2.5 million and $19.5 million of cash for the years ended December 31, 2012 and 2011, respectively. In January 2012, the Company exercised its right to convert all of the outstanding 6.25% Redeemable Convertible Preferred Stock into common stock. In February 2012, the Company issued 8.3 million shares of common stock associated with the previously outstanding 6.25% Redeemable Convertible Preferred Stock.

Redeemable Convertible Preferred Stock

The Company originally issued 8.1 million shares of its 6.25% Redeemable Convertible Preferred Stock at a price of $50.00 per share (the liquidation preference per share). The holders of the 6.25% Redeemable Convertible Preferred Stock were entitled to receive cumulative dividends at the rate of 6.25% per annum. The dividends were paid with approximately $2.5 million and $19.5 million of cash for the years ended December 31, 2012 and 2011, respectively. In January 2012, the Company exercised its right to convert all of the outstanding 6.25% Redeemable Convertible Preferred Stock into common stock. In February 2012, the Company issued 8.3 million shares of common stock associated with the previously outstanding 6.25% Redeemable Convertible Preferred Stock.