Net Loss per Share	9 Months Ended
Sep. 30, 2019
Earnings Per Share [Abstract]
Net Loss per Share	9. Net Loss per Share Basic net loss per share is calculated by dividing the net loss by the weighted-average number of shares of common stock outstanding for the period. Diluted net loss per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period using the treasury stock method. Outstanding stock options, RSUs, rights under the employee stock purchase plan (“ESPP”) and warrants are considered to be common stock equivalents and are only included in the calculation of diluted net loss per share when their effect is dilutive. The Company excluded approximately 10.0 million and 9.1 million shares of potentially dilutive securities as of September 30, 2019 and 2018, respectively, from the computations of diluted weighted-average shares outstanding because their effect would be anti-dilutive.

Net Loss per Share

9 Months Ended

Sep. 30, 2019

9. Net Loss per Share

Basic net loss per share is calculated by dividing the net loss by the weighted-average number of shares of common stock outstanding for the period. Diluted net loss per share is computed by giving effect to all potential dilutive common stock equivalents outstanding for the period using the treasury stock method. Outstanding stock options, RSUs, rights under the employee stock purchase plan (“ESPP”) and warrants are considered to be common stock equivalents and are only included in the calculation of diluted net loss per share when their effect is dilutive.

The Company excluded approximately 10.0 million and 9.1 million shares of potentially dilutive securities as of September 30, 2019 and 2018, respectively, from the computations of diluted weighted-average shares outstanding because their effect would be anti-dilutive.