Investments (Tables)

12 Months Ended

Apr. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of Cash Equivalents and Available-For-Sale Marketable Securities and Balance Sheet Classification

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

	As of April 30, 2022								As of April 30, 2021
	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	$	107,726	$	—	$	—	$	107,726	$	43,401	$	—	$	—	$	43,401
Commercial paper	142,511		—		—		142,511		—		—		—		—
Corporate debt securities	8,889		—		(5)		8,884		—		—		—		—
Certificates of deposit	3,000		—		—		3,000		—		—		—		—
Available-for-sale marketable securities:
U.S. treasury securities	12,764		—		(1)		12,763		57,993		5		—		57,998
Certificates of deposit	97,205		—		—		97,205		422,952		32		(6)		422,978
U.S. government agencies securities	14,113		—		(223)		13,890		—		—		—		—
Commercial paper	241,134		—		(2)		241,132		494,625		64		(13)		494,676
Corporate debt securities	289,646		20		(1,937)		287,729		2,369		—		(1)		2,368
Total cash equivalents and available-for-sale marketable securities	$	916,988	$	20	$	(2,168)	$	914,840	$	1,021,340	$	101	$	(20)	$	1,021,421

Summary of Available-For-Sale Marketable Securities by Contractual Maturity

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

	As of April 30, 2022				As of April 30, 2021
	Amortized Cost		Fair Value		Amortized Cost		Fair Value
Within one year	$	622,517	$	620,633	$	977,939	$	978,020
After one year through five years	32,345		32,086		—		—
Total	$	654,862	$	652,719	$	977,939	$	978,020

Summary of Fair Values and Unrealized Losses of Available-For-Sale Marketable Securities In Continuous Unrealized Loss Position

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 April 30, 2022 (in thousands):

	As of April 30, 2022
	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	$	(1)	$	12,763	$	—	$	—	$	(1)	$	12,763
Certificates of deposit	—		—		—		—		—		—
U.S. government agencies securities	(223)		13,897		—		—		(223)		13,897
Commercial paper	(2)		2,996		—		—		(2)		2,996
Corporate debt securities	(1,678)		248,176		(259)		31,194		(1,937)		279,370
Total	$	(1,904)	$	277,832	$	(259)	$	31,194	$	(2,163)	$	309,026