Cash, Cash Equivalents and Short-Term Investments - Schedule of Unrealized Losses Cash Equivalents and Short Term Investment (Details) - USD ($) $ in Thousands	Apr. 30, 2023	Jan. 31, 2023
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Carrying Value	$ 583,204	$ 577,591
Gross Unrealized Losses	(3,433)	(4,908)
Municipal bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Carrying Value	1,986	1,970
Gross Unrealized Losses	(9)	(19)
Foreign government bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Carrying Value	2,192	2,170
Gross Unrealized Losses	(30)	(41)
Commercial paper
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Carrying Value	110,613	45,015
Gross Unrealized Losses	(149)	(112)
U.S. Agency securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Carrying Value	69,471	73,724
Gross Unrealized Losses	(374)	(435)
Corporate debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Carrying Value	99,431	75,203
Gross Unrealized Losses	(565)	(572)
U.S. Treasury securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Carrying Value	299,511	379,509
Gross Unrealized Losses	$ (2,306)	$ (3,729)