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Net Loss Per Share | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share Basic And Diluted [Abstract] |
Net Loss Per Share | 16. Net Loss Per Share The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders:
|  | Year Ended December 31, |
(in thousands, except share and per share amounts) |  | 2020 |  |  | 2019 |  |  | 2018 |
Net loss |  | $ | (202,799 | ) |  | $ | (142,978 | ) |  | $ | (85,178 | )
Accretion of redeemable convertible preferred stock |  |  | — |  |  |  | (132,750 | ) |  |  | (13,036 | )
Net loss attributable to common stockholders |  | $ | (202,799 | ) |  | $ | (275,728 | ) |  | $ | (98,214 | )
Weighted-average number of shares outstanding used to compute net loss per share attributable to common stockholders, basic and diluted |  |  | 73,345,569 |  |  |  | 8,605,962 |  |  |  | 8,540,778 |
Net loss per share attributable to common stockholders, basic and diluted |  | $ | (2.76 | ) |  | $ | (32.04 | ) |  | $ | (11.50 | )
The following potentially dilutive shares were not included in the calculation of diluted shares outstanding for the periods presented as the effect would have been anti-dilutive:
|  | Year Ended December 31, |
|  | 2020 |  |  | 2019 |  |  | 2018 |
Redeemable convertible preferred stock |  |  | — |  |  |  | 83,568,628 |  |  |  | 66,825,300 |
Warrants |  |  | — |  |  |  | 161,136 |  |  |  | 161,136 |
Stock options |  |  | 5,617,568 |  |  |  | 6,110,000 |  |  |  | 2,961,008 |
Restricted stock awards |  |  | — |  |  |  | 3,249,382 |  |  |  | 3,873,214 |
Restricted stock units |  |  | 2,235,442 |  |  |  | 408,000 |  |  |  | 100,000 |
Total |  |  | 7,853,010 |  |  |  | 93,497,146 |  |  |  | 73,920,658 |

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