Investments - Summary of Fair Values and Unrealized Losses of Available-For-Sale Marketable Securities In Continuous Unrealized Loss Position (Details) $ in Thousands	Apr. 30, 2022 USD ($)
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	$ (1,904)
AFS, Less Than 12 Months, Fair Value	277,832
AFS, 12 Months or Greater, Unrealized Losses	(259)
AFS, 12 Months or Greater, Fair Value	31,194
AFS, Total Unrealized Losses	(2,163)
AFS, Total Fair Value	309,026
U.S. treasury securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	(1)
AFS, Less Than 12 Months, Fair Value	12,763
AFS, 12 Months or Greater, Unrealized Losses	0
AFS, 12 Months or Greater, Fair Value	0
AFS, Total Unrealized Losses	(1)
AFS, Total Fair Value	12,763
Certificates of deposit
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	0
AFS, Less Than 12 Months, Fair Value	0
AFS, 12 Months or Greater, Unrealized Losses	0
AFS, 12 Months or Greater, Fair Value	0
AFS, Total Unrealized Losses	0
AFS, Total Fair Value	0
U.S. government agencies securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	(223)
AFS, Less Than 12 Months, Fair Value	13,897
AFS, 12 Months or Greater, Unrealized Losses	0
AFS, 12 Months or Greater, Fair Value	0
AFS, Total Unrealized Losses	(223)
AFS, Total Fair Value	13,897
Commercial paper
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	(2)
AFS, Less Than 12 Months, Fair Value	2,996
AFS, 12 Months or Greater, Unrealized Losses	0
AFS, 12 Months or Greater, Fair Value	0
AFS, Total Unrealized Losses	(2)
AFS, Total Fair Value	2,996
Corporate debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	(1,678)
AFS, Less Than 12 Months, Fair Value	248,176
AFS, 12 Months or Greater, Unrealized Losses	(259)
AFS, 12 Months or Greater, Fair Value	31,194
AFS, Total Unrealized Losses	(1,937)
AFS, Total Fair Value	$ 279,370

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for less than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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