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Investments - Available-for-Sale Marketable Securities, Fair Value and Unrealized Losses Continuous Unrealized Loss Position (Details)
$ in Thousands
Jan. 31, 2023
USD ($)
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]  
AFS, Less Than 12 Months, Unrealized Losses $ (1,053)
AFS, Less Than 12 Months, Fair Value 197,532
AFS, 12 Months or Greater, Unrealized Losses (32)
AFS, 12 Months or Greater, Fair Value 7,195
AFS, Total Unrealized Losses (1,085)
AFS, Total Fair Value 204,727
U.S. treasury securities  
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]  
AFS, Less Than 12 Months, Unrealized Losses (64)
AFS, Less Than 12 Months, Fair Value 12,441
AFS, 12 Months or Greater, Unrealized Losses 0
AFS, 12 Months or Greater, Fair Value 0
AFS, Total Unrealized Losses (64)
AFS, Total Fair Value 12,441
U.S. government agencies securities  
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]  
AFS, Less Than 12 Months, Unrealized Losses (198)
AFS, Less Than 12 Months, Fair Value 24,058
AFS, 12 Months or Greater, Unrealized Losses (1)
AFS, 12 Months or Greater, Fair Value 1,092
AFS, Total Unrealized Losses (199)
AFS, Total Fair Value 25,150
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 8,002
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 8,002
Corporate debt securities  
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]  
AFS, Less Than 12 Months, Unrealized Losses (791)
AFS, Less Than 12 Months, Fair Value 153,031
AFS, 12 Months or Greater, Unrealized Losses (31)
AFS, 12 Months or Greater, Fair Value 6,103
AFS, Total Unrealized Losses (822)
AFS, Total Fair Value $ 159,134