Investments

9 Months Ended

Jan. 31, 2023

Investments, Debt and Equity Securities [Abstract]

Cash Equivalents and Available-for-Sale Marketable Securities

The following table summarizes the Company’s cash equivalents and available-for-sale marketable securities (in thousands):


	As of January 31, 2023								As of April 30, 2022
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value
Cash equivalents:
Money market funds	$	155,476	$	—	$	—	$	155,476	$	107,726	$	—	$	—	$	107,726
Certificates of deposit	—						—		3,000		—		—		3,000
Commercial paper	121,995		—		—		121,995		142,511		—		—		142,511
Corporate debt securities	3,325		2		—		3,327		8,889		—		(5)		8,884
Available-for-sale marketable securities:
U.S. treasury securities	12,506		—		(64)		12,442		12,764		—		(1)		12,763
Certificates of deposit	64,252		—		—		64,252		97,205		—		—		97,205
U.S. government agencies securities	26,627		—		(199)		26,428		14,113		—		(223)		13,890
Commercial paper	180,413		—		—		180,413		241,134		—		(2)		241,132
Corporate debt securities	195,906		48		(822)		195,132		289,646		20		(1,937)		287,729
Total cash equivalents and available-for-sale marketable securities	$	760,500	$	50	$	(1,085)	$	759,465	$	916,988	$	20	$	(2,168)	$	914,840

The following table summarizes the Company’s available-for-sale marketable securities by contractual maturity (in thousands):


	As of January 31, 2023				As of April 30, 2022
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within one year	$	462,308	$	461,298	$	622,517	$	620,633
After one year through five years	17,396		17,369		32,345		32,086
Total	$	479,704	$	478,667	$	654,862	$	652,719

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, as of January 31, 2023 (in thousands):


	As of January 31, 2023
	Less Than 12 Months				12 Months or Greater				Total
	Unrealized Losses		Fair Value		Unrealized Losses		Fair Value		Unrealized Losses		Fair Value
U.S. treasury securities	$	(64)	$	12,441	$	—	$	—	$	(64)	$	12,441

U.S. government agencies securities	(198)		24,058		(1)		1,092		(199)		25,150
Commercial paper	—		8,002		—		—		—		8,002
Corporate debt securities	(791)		153,031		(31)		6,103		(822)		159,134
Total	$	(1,053)	$	197,532	$	(32)	$	7,195	$	(1,085)	$	204,727

As of January 31, 2023, the Company had 175 investment positions in an unrealized loss position. As of April 30, 2022, the Company had 284 investment positions 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. Based on the Company’s review of these securities, including the assessment of the duration and severity of the unrealized losses and the Company’s ability and intent to hold the investments until maturity, there were no other-than-temporary impairments for these marketable securities at January 31, 2023.