Net Loss per Share

3 Months Ended

Mar. 31, 2014

Earnings Per Share [Abstract]

Net Loss per Share

14. Net Loss per Share

The following outstanding shares of common stock and potential common shares were excluded from the computation of diluted net loss per share of common stock for the periods presented because including them would have been antidilutive:

	For the three months ended March 31,
	2014		2013
Stock options to purchase common stock		2,113,995		2,153,180
Restricted stock units for common stock		1,694,129		787,713
Restricted shares of common stock subject to repurchase		286,125		481,849
Restricted stock issued in connection with Skyfence acquisition		354,678		—
Common stock warrants		—		8,333