Equity - Schedule of Common Stock Reserved for Issuance (Details) - shares	Sep. 30, 2025	Mar. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock warrants (in shares)	229,000
Options outstanding (in shares)	11,883,000	13,013,000
Total (in shares)	72,002,000
2010 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)	9,315,000
2021 Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Units outstanding (in shares)	4,658,000
Shares available for future grant (in shares)	43,634,000
2021 ESPP
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for future grant (in shares)	11,598,000
Options outstanding outside the Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options outstanding (in shares)	2,568,000

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

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