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Cash Equivalents and Marketable Securities
 6 Months Ended
Oct. 31, 2024
Investments, Debt and Equity Securities [Abstract]  
Cash Equivalents and Marketable Securities Cash Equivalents and Marketable Securities
The following table summarizes the Company’s cash equivalents and available-for-sale marketable securities (in thousands):
As of October 31, 2024As of April 30, 2024
Amortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair ValueAmortized CostGross Unrealized GainsGross Unrealized LossesEstimated Fair Value
Cash equivalents:
Money market funds$61,121 $— $— $61,121 $82,564 $— $— $82,564 
Commercial paper8,115 — — 8,115 18,769 — — 18,769 
U.S. treasury securities999 — — 999 5,888 — — 5,888 
Available-for-sale marketable securities:
U.S. treasury securities13,328 14 (1)13,341 2,497 — — 2,497 
Certificates of deposit68,715 — — 68,715 62,017 — — 62,017 
U.S. government agencies securities65,694 121 (151)65,664 46,527 5 (104)46,428 
Commercial paper113,959 — — 113,959 162,183 — — 162,183 
Corporate debt securities346,881 826 (286)347,421 310,557 64 (526)310,095 
Total cash equivalents and available-for-sale marketable securities$678,812 $961 $(438)$679,335 $691,002 $69 $(630)$690,441 
The following table summarizes the Company’s available-for-sale marketable securities by contractual maturity (in thousands):
As of October 31, 2024As of April 30, 2024
Amortized CostFair ValueAmortized CostFair Value
Within one year$482,694 $483,395 $514,747 $514,484 
After one year through five years125,883 125,705 69,034 68,736 
Total$608,577 $609,100 $583,781 $583,220 
The following table summarizes the fair values and unrealized losses of the Company’s available-for-sale marketable securities classified by length of time that the securities have been in a continuous unrealized loss position but were not deemed to be other-than-temporarily impaired (in thousands):
As of October 31, 2024
Less Than 12 Months12 Months or GreaterTotal
Unrealized LossesFair ValueUnrealized LossesFair ValueUnrealized LossesFair Value
U.S. treasury securities$(1)$3,192 $— $— $(1)$3,192 
U.S. government agencies securities(151)18,790 — — (151)18,790 
Commercial paper— 3,472 — — — 3,472 
Corporate debt securities(286)47,329 — 2,000 (286)49,329 
Total$(438)$72,783 $— $2,000 $(438)$74,783 
As of April 30, 2024
Less Than 12 Months12 Months or GreaterTotal
Unrealized LossesFair ValueUnrealized LossesFair ValueUnrealized LossesFair Value
U.S. treasury securities$— $2,497 $— $— $— $2,497 
U.S. government agencies securities(99)33,890 (6)7,749 (105)41,639 
Commercial paper— 4,058 — — — 4,058 
Corporate debt securities(491)196,907 (34)27,658 (525)224,565 
Total$(590)$237,352 $(40)$35,407 $(630)$272,759 
As of October 31, 2024, the Company had 53 marketable securities in an unrealized loss position. As of April 30, 2024, the Company had 219 marketable securities that were in an unrealized loss position. The Company considers factors such as the duration, the magnitude and the reason for the decline in value, the potential recovery period, creditworthiness of the issuers of the securities and its intent to sell. For marketable securities, it also considers whether (i) it is more likely than not that the Company will be required to sell the debt securities before recovery of their amortized cost basis, and (ii) the amortized cost basis cannot be recovered as a result of credit losses. No significant facts or circumstances have arisen to indicate that there has been any significant deterioration in the creditworthiness of the issuers of the securities held by the Company. The decline in fair value below amortized cost basis was not considered other-than-temporary as it is more likely than not that the Company will hold the securities until maturity or a recovery of the cost basis, and no significant credit-related impairment losses were recorded as of October 31, 2024.