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Stockholders' Equity (Deficit) - Common Stock Reserved for Future Issuance (Details) - shares | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Class Of Stock [Line Items] |  |
Common stock reserved for issuance (in shares) | 106,320,711 | 191,849,299
2021 Equity Incentive Plan [Member] |  |
Class Of Stock [Line Items] |  |
Common stock reserved for issuance (in shares) | 32,797,245 | 0
2021 Equity Incentive Plan [Member] | Stock Options [Member] |  |
Class Of Stock [Line Items] |  |
Common stock reserved for issuance (in shares) | 22,500 | 0
2021 Equity Incentive Plan [Member] | RSUs [Member] |  |
Class Of Stock [Line Items] |  |
Common stock reserved for issuance (in shares) | 2,938,968 | 0
Equity Incentives Plan 20214 [Member] |  |
Class Of Stock [Line Items] |  |
Common stock reserved for issuance (in shares) | 0 | 4,722,481
Equity Incentives Plan 20214 [Member] | Stock Options [Member] |  |
Class Of Stock [Line Items] |  |
Common stock reserved for issuance (in shares) | 61,903,883 | 71,213,150
Equity Incentives Plan 20214 [Member] | RSUs [Member] |  |
Class Of Stock [Line Items] |  |
Common stock reserved for issuance (in shares) | 3,495,540 | 0
2021 Employee Stock Purchase Plan [Member] |  |
Class Of Stock [Line Items] |  |
Common stock reserved for issuance (in shares) | 5,162,575 | 0
Convertible Founder Stock [Member] |  |
Class Of Stock [Line Items] |  |
Convertible founder stock (in shares) | 0 | 635,818
Series A Redeemable Convertible Preferred Stock [Member] |  |
Class Of Stock [Line Items] |  |
Convertible preferred stock reserved for issuance (in shares) | 0 | 34,911,252
Series B Redeemable Convertible Preferred Stock [Member] |  |
Class Of Stock [Line Items] |  |
Convertible preferred stock reserved for issuance (in shares) | 0 | 24,948,780
Series C Redeemable Convertible Preferred Stock [Member] |  |
Class Of Stock [Line Items] |  |
Convertible preferred stock reserved for issuance (in shares) | 0 | 18,657,756
Series D Redeemable Convertible Preferred Stock [Member] |  |
Class Of Stock [Line Items] |  |
Convertible preferred stock reserved for issuance (in shares) | 0 | 12,106,303
Series E Redeemable Convertible Preferred Stock [Member] |  |
Class Of Stock [Line Items] |  |
Convertible preferred stock reserved for issuance (in shares) | 0 | 24,653,759

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