Stockholders' Equity - Schedule of Common Stock Reserved for Issuance (Details) - shares	Jun. 30, 2024	Mar. 31, 2024
Class of Stock [Line Items]
Outstanding stock options (in shares)	64,832,199	70,739,770
Total shares of common stock reserved (in shares)	223,027,929	238,918,589
2021 Incentive Equity Plan
Class of Stock [Line Items]
Remaining shares available for future issuance under Amended and Restated 2021 Incentive Equity Plan (in shares)	77,071,470	111,276,882
Employee Stock Purchase Plan
Class of Stock [Line Items]
Remaining shares available for future issuance under Employee Stock Purchase Plan (in shares)	12,845,267	12,845,267
Restricted Stock Units
Class of Stock [Line Items]
Outstanding restricted stock units (in shares)	68,278,993	44,056,670