12. Stockholders' Equity

9 Months Ended

Sep. 30, 2015

Equity [Abstract]

12. Stockholders' Equity

Common Stock

The Company has authorized the issuance of up to 45,000,000 shares of common stock, all of which have been designated voting common stock, under its Amended and Restated Certificate of Incorporation.

Convertible Preferred Stock

The Company has authorized the issuance of up to 5,000,000 shares of preferred stock under the Company’s Amended and Restated Certificate of Incorporation.

Warrants

As of September 30, 2015 and December 31, 2014, the Company had no outstanding warrants to purchase common or preferred stock.

Public Offerings of Common Stock

On September 25, 2013, the Company’s registration statement on Form S-1 for its initial public offering was declared effective by the Securities and Exchange Commission. The offering commenced on September 26, and the Company sold 3.6 million shares of its common stock in its initial public offering at a price of $10.00 per share, providing proceeds of $31.5 million, net of expenses and underwriting discounts and commissions. The Company’s initial public offering closed on October 1, 2013.

On March 19, 2014, the Company sold 2.0 million shares of its common stock in a secondary offering at a price of $24.25 per share, providing proceeds of $45.7 million, net of expenses and underwriting discounts and commissions. The Company’s sale of 1.6 million shares in the secondary offering closed on March 25, 2014 and the Company’s sale of an additional 0.4 million shares as a result of the underwriters’ exercise of their option to purchase additional shares closed on March 28, 2014.

On June 3, 2015, the Company filed a Securities Registration Statement on Form S-3 (the “Form S-3”) with the Securities and Exchange Commission effective June 23, 2015, providing for the public offer and sale of certain securities of the Company from time to time, at its discretion, up to an aggregate amount of $140 million. In connection with the Company’s Form S-3, the Company entered into an Equity Distribution Agreement with Raymond James & Associates, Inc. (the “sales agent”) pursuant to which the Company may issue and sell shares of the Company’s stock having an aggregate offering price of up to $40 million (the “ATM Offering”) from time to time through the sales agent. On July 16, 2015, the Company commenced sales of common stock through the ATM Offering, and as of September 30, 2015, the Company has sold 1.9 million shares under the ATM Offering at a weighted average price of $21.54 per share, providing proceeds of $38.7 million, net of expenses and underwriting discounts and commissions.