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Net Loss Per Share - Schedule of Antidilutive Securities Excluded From Computation of Dilutied Net Loss Per Share (Details) - shares | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of earnings per share amount | 82,840,904 | 188,829,945 | 162,720,994
Redeemable Convertible Preferred Stock [Member] |  |  |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of earnings per share amount |  | 115,277,850 | 90,624,091
Stock Option [Member] |  |  |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of earnings per share amount | 61,926,383 | 71,213,150 | 67,586,556
Unvested Early Exercised Stock Options [Member] |  |  |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of earnings per share amount | 2,164,577 | 2,338,945 | 4,510,347
RSUs [Member] |  |  |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of earnings per share amount | 6,434,508 |  |
ESPP [Member] |  |  |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of earnings per share amount | 1,322,476 |  |
Shares Issuable Upon Conversion Of The 2027 Notes |  |  |
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items] |  |  |
Antidilutive securities excluded from computation of earnings per share amount | 10,992,960 |  |

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- Definition Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -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 Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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