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Investments - Available-for-Sale Marketable Securities, Fair Value and Unrealized Losses Continuous Unrealized Loss Position (Details) $ in Thousands | Jul. 31, 2022 USD ($)
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Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |
AFS, Less Than 12 Months, Unrealized Losses | $ (2,247)
AFS, Less Than 12 Months, Fair Value | 310,966
AFS, 12 Months or Greater, Unrealized Losses | (106)
AFS, 12 Months or Greater, Fair Value | 20,171
AFS, Total Unrealized Losses | (2,353)
AFS, Total Fair Value | 331,137
U.S. treasury securities |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |
AFS, Less Than 12 Months, Unrealized Losses | (6)
AFS, Less Than 12 Months, Fair Value | 12,789
AFS, 12 Months or Greater, Unrealized Losses | 0
AFS, 12 Months or Greater, Fair Value | 0
AFS, Total Unrealized Losses | (6)
AFS, Total Fair Value | 12,789
U.S. government agencies securities |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |
AFS, Less Than 12 Months, Unrealized Losses | (273)
AFS, Less Than 12 Months, Fair Value | 18,443
AFS, 12 Months or Greater, Unrealized Losses | (25)
AFS, 12 Months or Greater, Fair Value | 3,566
AFS, Total Unrealized Losses | (298)
AFS, Total Fair Value | 22,009
Commercial paper |
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 | 3,000
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 | 3,000
Corporate debt securities |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |
AFS, Less Than 12 Months, Unrealized Losses | (1,968)
AFS, Less Than 12 Months, Fair Value | 276,734
AFS, 12 Months or Greater, Unrealized Losses | (81)
AFS, 12 Months or Greater, Fair Value | 16,605
AFS, Total Unrealized Losses | (2,049)
AFS, Total Fair Value | $ 293,339

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