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Net Loss Per Share (Tables) | 12 Months Ended
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Dec. 31, 2021
Earnings Per Share [Abstract] |
Schedule of Computation of Net Loss Per Common Share | The following table sets forth the computation of net loss per common share (in thousands, except per share amounts):
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
Numerator: |  |  |  |  |
Net loss | $ | (158,165) |  |  | $ | (94,313) |  |  | $ | (94,940) |
Denominator: |  |  |  |  |
Weighted average common shares outstanding - basic and diluted | 104,205,645 |  |  | 89,582,138 |  |  | 64,478,066 |
Net loss per share - basic and diluted | $ | (1.52) |  |  | $ | (1.05) |  |  | $ | (1.47) |
Schedule of Anti-Dilutive Securities Not Considered in Diluted Net Loss Per Common Share Calculation | For the years ended December 31, 2021, 2020 and 2019, the total numbers of securities that could potentially dilute net income per share in the future that were not considered in the diluted net loss per share calculations because the effect would have been anti-dilutive were as follows:
| Year Ended December 31,
| 2021 |  | 2020 |  | 2019
Options to purchase common stock | 11,870,778 |  |  | 9,246,047 |  |  | 7,128,247 |
Restricted stock units | 1,602,384 |  |  | 26,121 |  |  | — |
ESPP shares issuable | 206,522 |  |  | 94,466 |  |  | 78,761 |
Warrants to purchase common stock | — |  |  | 932,091 |  |  | 2,172,899 |
Performance-based restricted stock units | — |  |  | — |  |  | 867,506 |
Total | 13,679,684 |  |  | 10,298,725 |  |  | 10,247,413 |

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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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