Equity Incentive Plans and Stock-Based Compensation - Summary of the Value Stock Options (Details)	3 Months Ended		9 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2023	Dec. 31, 2022
Minimum | ESPP
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (years)			6 months	6 months
Expected volatility			67.00%	98.00%
Risk-free interest rate			5.40%	3.30%
Expected dividend yield			0.00%	0.00%
Minimum | Outstanding stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (years)		6 years	5 years 9 months 18 days	6 years
Expected volatility	0.00%	79.00%	78.00%	76.00%
Risk-free interest rate	0.00%	4.20%	3.60%	2.80%
Expected dividend yield	0.00%	0.00%	0.00%	0.00%
Maximum | ESPP
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (years)			1 year	1 year
Expected volatility			73.00%	109.00%
Risk-free interest rate			5.50%	3.50%
Expected dividend yield			0.00%	0.00%
Maximum | Outstanding stock options
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Expected term (years)		6 years	6 years	6 years 9 months 18 days
Expected volatility	0.00%	79.00%	79.00%	81.00%
Risk-free interest rate	0.00%	4.20%	4.40%	4.20%
Expected dividend yield	0.00%	0.00%	0.00%	0.00%