Cash Equivalents and Marketable Securities - Available-for-Sale Marketable Securities, Fair Value and Unrealized Losses Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands	Jul. 31, 2024	Jul. 31, 2023
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	$ (133)	$ (637)
AFS, Less Than 12 Months, Fair Value	112,534	206,931
AFS, 12 Months or Greater, Unrealized Losses	(29)	(164)
AFS, 12 Months or Greater, Fair Value	40,027	44,410
AFS, Total Unrealized Losses	(162)	(801)
AFS, Total Fair Value	152,561	251,341
U.S. government agencies securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	(26)	(110)
AFS, Less Than 12 Months, Fair Value	13,983	37,729
AFS, 12 Months or Greater, Unrealized Losses	0	(8)
AFS, 12 Months or Greater, Fair Value	0	4,442
AFS, Total Unrealized Losses	(26)	(118)
AFS, Total Fair Value	13,983	42,171
Commercial paper
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	0	0
AFS, Less Than 12 Months, Fair Value	2,539	10,254
AFS, 12 Months or Greater, Unrealized Losses	0	0
AFS, 12 Months or Greater, Fair Value	0	0
AFS, Total Unrealized Losses	0	0
AFS, Total Fair Value	2,539	10,254
Corporate debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
AFS, Less Than 12 Months, Unrealized Losses	(107)	(527)
AFS, Less Than 12 Months, Fair Value	96,012	158,948
AFS, 12 Months or Greater, Unrealized Losses	(29)	(156)
AFS, 12 Months or Greater, Fair Value	40,027	39,968
AFS, Total Unrealized Losses	(136)	(683)
AFS, Total Fair Value	$ 136,039	$ 198,916

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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