Subsequent Events	3 Months Ended
Mar. 31, 2014
Subsequent Events	11. Subsequent Events In April of 2014, the Company completed the IPO in which the Company issued and sold 4,000,000 shares of common stock at a public offering price of $26.00 per share. The Company received net proceeds of $95.5 million after deducting underwriting discounts and commissions of $6.5 million and other offering expenses of approximately $2.0 million. These expenses were recorded against the proceeds received from the IPO. Certain selling stockholders offered an additional 3,405,614 shares of common stock in the IPO and also granted the underwriters an option to purchase up to 1,110,842 additional shares of common stock. The Company did not receive any proceeds from the sale of the shares sold by the selling stockholders. Upon the closing of the IPO, all shares of the Company’s then-outstanding convertible Series A preferred stock automatically converted into an aggregate of 19,284,113 shares of common stock. Additionally, the put rights for the Company’s redeemable common stock were terminated upon the closing of the IPO. The Company invested the funds received in non-interest bearing accounts, short-term and intermediate-term interest-bearing obligations, investment-grade investments, certificates of deposit or direct or guaranteed obligations of the U.S. government.

Subsequent Events

3 Months Ended

Mar. 31, 2014

11. Subsequent Events

In April of 2014, the Company completed the IPO in which the Company issued and sold 4,000,000 shares of common stock at a public offering price of $26.00 per share. The Company received net proceeds of $95.5 million after deducting underwriting discounts and commissions of $6.5 million and other offering expenses of approximately $2.0 million. These expenses were recorded against the proceeds received from the IPO.

Certain selling stockholders offered an additional 3,405,614 shares of common stock in the IPO and also granted the underwriters an option to purchase up to 1,110,842 additional shares of common stock. The Company did not receive any proceeds from the sale of the shares sold by the selling stockholders.

Upon the closing of the IPO, all shares of the Company’s then-outstanding convertible Series A preferred stock automatically converted into an aggregate of 19,284,113 shares of common stock. Additionally, the put rights for the Company’s redeemable common stock were terminated upon the closing of the IPO.

The Company invested the funds received in non-interest bearing accounts, short-term and intermediate-term interest-bearing obligations, investment-grade investments, certificates of deposit or direct or guaranteed obligations of the U.S. government.