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Net Loss Per Share Attributable to Common Stockholders (Tables) | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Summary of Potentially Dilutive Securities Excluded from Computation of Diluted Net Loss Per Share | The following outstanding shares of potentially dilutive securities were excluded from the computation of diluted net loss per share attributable to common stockholders for the periods presented, because including them would have been antidilutive:
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
Redeemable convertible preferred stock (on an as-converted basis) | — |  |  | — |  |  | 18,442,233 |
Options to purchase common stock | 3,620,180 |  |  | 2,993,855 |  |  | 1,337,501 |
Restricted stock awards granted and not purchased | — |  |  | 4,195 |  |  | 4,195 |
Unvested restricted shares | 21,841 |  |  | 126,522 |  |  | 302,211 |
Total | 3,642,021 |  |  | 3,124,572 |  |  | 20,086,140 |
Reconciliation of Numerator and Denominator Used in Calculation of Basic and Diluted Net Loss Per Share | A reconciliation of the numerator and denominator used in the calculation of the basic and diluted net loss per share attributable to common stockholders is as follows (in thousands, except share and per share amounts):
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
Net loss per share: |  |  |  |  |
Numerator |  |  |  |  |
Net loss | $ | (97,263) |  |  | $ | (41,533) |  |  | $ | (631) |
Less: accretion to redemption value and dividends on redeemable convertible preferred shares | — |  |  | — |  |  | (6,225) |
Net loss attributable to common stockholders | $ | (97,263) |  |  | $ | (41,533) |  |  | $ | (6,856) |
Denominator |  |  |  |  |
Weighted-average common shares outstanding used to calculate net loss per share attributable to common stockholders: |  |  |  |  |
Basic | 35,846,421 |  |  | 21,344,236 |  |  | 1,623,358 |
Diluted | 35,846,421 |  |  | 21,344,236 |  |  | 1,623,358 |
Net loss per share attributable to common stockholders: |  |  |  |  |
Basic | $ | (2.71) |  |  | $ | (1.95) |  |  | $ | (4.22) |
Diluted | $ | (2.71) |  |  | $ | (1.95) |  |  | $ | (4.22) |

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- Definition Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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