Subsequent Events	9 Months Ended
Sep. 28, 2013
Subsequent Events	13. Subsequent Events Follow-On Public Offering On October 28, 2013, the Company completed its follow-on public offering, in which 5,100,000 shares of its common stock were sold at a public offering price of $38.50 per share. The Company sold 300,000 shares of common stock, for which the Company received net proceeds of $10.2 million, net of underwriting discounts and commissions of $0.5 million and other offering expenses of approximately $0.9 million. In addition, the Company’s selling stockholders sold 4,800,000 shares of common stock, which included 293,718 shares of common stock issued upon the exercise of options by certain selling stockholders, with an aggregate exercise price of $1.3 million, at a public offering price of $38.50 per share. The Company did not receive any proceeds from the sale of shares by the selling stockholders.

Subsequent Events

9 Months Ended

Sep. 28, 2013

13. Subsequent Events

Follow-On Public Offering

On October 28, 2013, the Company completed its follow-on public offering, in which 5,100,000 shares of its common stock were sold at a public offering price of $38.50 per share. The Company sold 300,000 shares of common stock, for which the Company received net proceeds of $10.2 million, net of underwriting discounts and commissions of $0.5 million and other offering expenses of approximately $0.9 million. In addition, the Company’s selling stockholders sold 4,800,000 shares of common stock, which included 293,718 shares of common stock issued upon the exercise of options by certain selling stockholders, with an aggregate exercise price of $1.3 million, at a public offering price of $38.50 per share. The Company did not receive any proceeds from the sale of shares by the selling stockholders.