Redeemable Preferred Stock	12 Months Ended
Dec. 31, 2014
Equity [Abstract]
Redeemable Preferred Stock	Redeemable Preferred Stock The Company has designated 2,000,000 shares of its authorized preferred stock as Series A, par value $0.01 per share, with a liquidation preference of $1,000 per share (the “Series A Preferred Stock”) and 150,000 shares of its authorized preferred stock as Series B, par value $0.01 per share, with a liquidation preference of $1,000 per share (the “Series B Preferred Stock”). Series A Preferred Stock On August 20, 2013, the Company used proceeds of $77.2 million from the issuance of 77,241 shares of Series B Preferred Stock to redeem all of the then-outstanding shares of Series A Preferred Stock, including accrued and unpaid dividends thereon. No shares of Series A Preferred Stock are issuable in the future. During the year ended December 31, 2013, the Company paid $6.8 million in Series A Preferred Stock dividends. During the year ended December 31, 2012, the Company redeemed 49,233 shares of its Series A Preferred Stock for $49.2 million and $0.8 million of unpaid dividends accrued through the redemption date. Total dividends accrued and paid on the Series A Preferred Stock during the year ended December 31, 2012 were $11.1 million. The accretion of Series A Preferred Stock resulted in an equivalent reduction in additional paid-in capital on the accompanying consolidated statements of stockholders' equity at December 31, 2013 and December 31, 2012. Series B Preferred Stock On August 20, 2013, the Company issued 77,241 shares of its Series B Preferred Stock for gross proceeds of approximately $77.2 million. Proceeds from the issuance of the Series B Preferred Stock were used to redeem all then-outstanding shares of Series A Preferred Stock, plus accrued and unpaid dividends thereon. In October 2013, the Company used a portion of the net proceeds from its underwritten public offering of Class A common stock to redeem all then-outstanding shares of Series B Preferred Stock, including accrued and unpaid dividends thereon. No shares of Series B Preferred Stock are issuable in the future.

Redeemable Preferred Stock

The Company has designated 2,000,000 shares of its authorized preferred stock as Series A, par value $0.01 per share, with a liquidation preference of $1,000 per share (the “Series A Preferred Stock”) and 150,000 shares of its authorized preferred stock as Series B, par value $0.01 per share, with a liquidation preference of $1,000 per share (the “Series B Preferred Stock”).

Series A Preferred Stock

On August 20, 2013, the Company used proceeds of $77.2 million from the issuance of 77,241 shares of Series B Preferred Stock to redeem all of the then-outstanding shares of Series A Preferred Stock, including accrued and unpaid dividends thereon. No shares of Series A Preferred Stock are issuable in the future. During the year ended December 31, 2013, the Company paid $6.8 million in Series A Preferred Stock dividends.

During the year ended December 31, 2012, the Company redeemed 49,233 shares of its Series A Preferred Stock for $49.2 million and $0.8 million of unpaid dividends accrued through the redemption date. Total dividends accrued and paid on the Series A Preferred Stock during the year ended December 31, 2012 were $11.1 million.

The accretion of Series A Preferred Stock resulted in an equivalent reduction in additional paid-in capital on the accompanying consolidated statements of stockholders' equity at December 31, 2013 and December 31, 2012.

Series B Preferred Stock

On August 20, 2013, the Company issued 77,241 shares of its Series B Preferred Stock for gross proceeds of approximately $77.2 million. Proceeds from the issuance of the Series B Preferred Stock were used to redeem all then-outstanding shares of Series A Preferred Stock, plus accrued and unpaid dividends thereon. In October 2013, the Company used a portion of the net proceeds from its underwritten public offering of Class A common stock to redeem all then-outstanding shares of Series B Preferred Stock, including accrued and unpaid dividends thereon. No shares of Series B Preferred Stock are issuable in the future.