Cash, Cash Equivalents and Short-Term Investments - Schedule of Unrealized Losses Cash Equivalents and Short Term Investment (Details) $ in Thousands	Apr. 30, 2022 USD ($)
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Fair Value	$ 47,302
Gross Unrealized Losses	(69)
Corporate debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Fair Value	10,912
Gross Unrealized Losses	(29)
U.S. Treasury securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Fair Value	21,857
Gross Unrealized Losses	(35)
Commercial paper
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Fair Value	14,533
Gross Unrealized Losses	$ (5)