Redeemable Preferred Stock	12 Months Ended
Dec. 31, 2016
Equity [Abstract]
Redeemable Preferred Stock	9. Redeemable Preferred Stock The Company issued shares of redeemable preferred stock in connection with its initial public offering in June 2006. As of December 31, 2016, the redeemable preferred stock carrying value was $23.6 million and there were 20 million shares of redeemable preferred stock authorized. The redeemable preferred stock is not convertible into common stock but is redeemable at $9.00 per share, (i) upon the Company’s liquidation, dissolution or winding up, or the occurrence of certain mergers, consolidations or sales of all or substantially all of the Company’s assets, before any payment to the holders of the Company’s common stock, or (ii) at the Company’s option at any time. Holders of redeemable preferred stock are generally not entitled to vote on matters submitted to the stockholders, except with respect to certain matters that will affect them adversely as a class, and are not entitled to receive dividends. The carrying value of the redeemable preferred stock was $7.11 per share at December 31, 2016 and 2015. The redeemable preferred stock is presented separately from stockholders’ deficit in the consolidated balance sheets and any adjustments to its carrying value up to its redemption value of $9.00 per share will be reported as a dividend.

9. Redeemable Preferred Stock

The Company issued shares of redeemable preferred stock in connection with its initial public offering in June 2006. As of December 31, 2016, the redeemable preferred stock carrying value was $23.6 million and there were 20 million shares of redeemable preferred stock authorized. The redeemable preferred stock is not convertible into common stock but is redeemable at $9.00 per share, (i) upon the Company’s liquidation, dissolution or winding up, or the occurrence of certain mergers, consolidations or sales of all or substantially all of the Company’s assets, before any payment to the holders of the Company’s common stock, or (ii) at the Company’s option at any time. Holders of redeemable preferred stock are generally not entitled to vote on matters submitted to the stockholders, except with respect to certain matters that will affect them adversely as a class, and are not entitled to receive dividends. The carrying value of the redeemable preferred stock was $7.11 per share at December 31, 2016 and 2015.

The redeemable preferred stock is presented separately from stockholders’ deficit in the consolidated balance sheets and any adjustments to its carrying value up to its redemption value of $9.00 per share will be reported as a dividend.