Net Loss Per Share Attributable to Common Stockholders - Potential Shares Excluded From Computation of Diluted Net Loss Per Share (Details) - shares shares in Thousands	9 Months Ended
	Jan. 31, 2025	Jan. 31, 2024
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive shares excluded from computation of net loss per share (in shares)	28,806	32,103
RSUs
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive shares excluded from computation of net loss per share (in shares)	23,579	20,908
ESPP
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Potentially antidilutive shares excluded from computation of net loss per share (in shares)	975	1,102