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Net Loss Per Share Attributable to Common Stockholders | 6 Months Ended
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Jun. 30, 2019
Earnings Per Share [Abstract] |
Net Loss Per Share Attributable to Common Stockholders | Net Loss Per Share Attributable to Common Stockholders The following table sets forth the computation of basic and diluted net loss per share attributable to common stockholders:
| Three Months Ended June 30, |  | Six Months Ended June 30,
(in thousands, except per share data) | 2019 |  | 2018 |  | 2019 |  | 2018
Net loss attributable to common stockholders | $ | (21,628 | ) |  | $ | (17,341 | ) |  | $ | (43,068 | ) |  | $ | (33,417 | )
Weighted-average shares used to compute net loss per share attributable to common stockholders, basic and diluted | 95,820 |  |  | 23,750 |  |  | 94,785 |  |  | 23,623 |
Net loss per share attributable to common stockholders, basic and diluted | $ | (0.23 | ) |  | $ | (0.73 | ) |  | $ | (0.45 | ) |  | $ | (1.41 | )
The following potentially dilutive securities have been excluded from the diluted per share calculations because they would have been antidilutive:
| Three and Six Months Ended June 30,
(in thousands) | 2019 |  | 2018
Stock options | 14,892 |  |  | 19,521 |
Restricted stock units | 2,987 |  |  | 971 |
Restricted shares | 692 |  |  | 1,088 |
Shares to be issued under the 2018 ESPP | 253 |  |  | — |
Redeemable convertible preferred stock | — |  |  | 55,386 |
Total | 18,824 |  |  | 76,966 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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