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Common Stock - Schedule of Shares Reserved for Future Issuance (Details) | Sep. 30, 2025 shares
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Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 389,308,174
Tranche 2 |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 46,620,046
Tranche 3 |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 46,620,046
Outstanding stock options |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 25,728,497
Outstanding stock options | 2021 Employee stock purchase plan |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 708,161
Shares reserved for the January 2024 Pre-funded stock warrants |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 8,580,507
Placement agent warrants |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 283,334
Shares reserved for the May 2025 Pre-funded warrants |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 86,666,667
Shares reserved for the May 2025 Series A warrants |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 86,666,667
Maximum shares reserved for the May 2025 Series B warrants |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 86,666,667
Common stock options available for future grant: | 2017 Inducement Equity Incentive Plan |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 46,250
Common stock options available for future grant: | 2019 Omnibus Equity Incentive Plan |
Class of Stock [Line Items] |
Total common shares reserved for future issuance (in shares) | 721,332

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