Subsequent Events	9 Months Ended
Sep. 30, 2012
Subsequent Events [Abstract]
Subsequent Events	Subsequent Events On October 3, 2012, the Company closed its IPO of 8,711,250 shares of common stock at an offering price of $12.00 per share. The offering included 7,836,250 shares sold and issued by the Company and 875,000 shares sold by selling stockholders. The shares sold in the offering included 1,136,250 shares sold by the Company pursuant to the underwriters’ full exercise of their over-allotment option. The net proceeds to the Company from the offering were approximately $87.5 million after deducting underwriting discounts and commissions, and before deducting total estimated expenses in connection with this offering of approximately $2.5 million. Immediately prior to the closing, all of the Company’s 17,597,258 outstanding shares of convertible preferred stock converted into an equivalent number of shares of common stock. Additionally, on October 3, 2012, the Company filed its Amended and Restated Certificate of Incorporation increasing the number of shares the Company is authorized to issue to 1,000,000,000 shares of common stock and 20,000,000 shares of preferred stock.

Subsequent Events

On October 3, 2012, the Company closed its IPO of 8,711,250 shares of common stock at an offering price of $12.00 per share. The offering included 7,836,250 shares sold and issued by the Company and 875,000 shares sold by selling stockholders. The shares sold in the offering included 1,136,250 shares sold by the Company pursuant to the underwriters’ full exercise of their over-allotment option. The net proceeds to the Company from the offering were approximately $87.5 million after deducting underwriting discounts and commissions, and before deducting total estimated expenses in connection with this offering of approximately $2.5 million. Immediately prior to the closing, all of the Company’s 17,597,258 outstanding shares of convertible preferred stock converted into an equivalent number of shares of common stock.

Additionally, on October 3, 2012, the Company filed its Amended and Restated Certificate of Incorporation increasing the number of shares the Company is authorized to issue to 1,000,000,000 shares of common stock and 20,000,000 shares of preferred stock.