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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2016
Earnings Per Share [Abstract] |
Net Loss Per Share | 12. NET LOSS PER SHARE Basic net loss per share is calculated by dividing net loss by the weighted-average number of common shares outstanding during the period, less shares subject to repurchase, and excludes any dilutive effects of share-based awards and warrants. Diluted net loss per common share is computed giving effect to all potential dilutive common shares, including common stock issuable upon exercise of stock options, and unvested restricted common stock and stock units. As the Company had net losses for the years ended December 31, 2016, 2015 and 2014, all potential common shares were determined to be anti-dilutive. The following table sets forth the computation of net loss per common share (in thousands, except share and per share amounts):
|  | December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Numerator: |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  | $ | (112,387 | ) |  | $ | (29,621 | ) |  | $ | (3,214 | )
Denominator: |  |  |  |  |  |  |  |  |  |  |  |
Weighted average number of shares outstanding—basic and diluted |  |  | 40,118,522 |  |  |  | 22,892,640 |  |  |  | 10,248,337 |
Net loss per share-basic and diluted |  | $ | (2.80 | ) |  | $ | (1.29 | ) |  | $ | (0.31 | )
Potentially dilutive securities that were not included in the diluted per share calculations because they would be anti-dilutive were as follows:
|  | December 31, |
|  | 2016 |  |  | 2015 |  |  | 2014 |
Options to purchase common stock |  |  | 2,557,314 |  |  |  | 1,244,442 |  |  |  | 1,007,724 |
Warrants to purchase common stock |  |  | 2,172,899 |  |  |  | 300,302 |  |  |  | — |
Total |  |  | 4,730,213 |  |  |  | 1,544,744 |  |  |  | 1,007,724 |

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