Cash Equivalents and Short-Term Investments - Summary of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value (Details) - USD ($) $ in Thousands	Jul. 31, 2023	Jan. 31, 2023
Debt Securities, Available-for-Sale, Unrealized Loss Position
Short-term investments, less than 12 months, unrealized Losses	$ (114)	$ (810)
Short-term investments, less than 12 months, fair value	74,106	80,583
Short-term investments,12 months or greater, unrealized Losses	(188)	(1)
Short-term investments, 12 months or greater, fair value	27,743	1,999
Short-term investments, unrealized Losses	(302)	(811)
Debt securities, available-for-sale, unrealized loss position, total	101,849	82,582
U.S. government treasury securities
Debt Securities, Available-for-Sale, Unrealized Loss Position
Short-term investments, less than 12 months, unrealized Losses	(60)	(729)
Short-term investments, less than 12 months, fair value	57,460	64,397
Short-term investments,12 months or greater, unrealized Losses	(185)	0
Short-term investments, 12 months or greater, fair value	25,750	0
Short-term investments, unrealized Losses	(245)	(729)
Debt securities, available-for-sale, unrealized loss position, total	83,210	64,397
U.S. government agency securities
Debt Securities, Available-for-Sale, Unrealized Loss Position
Short-term investments, less than 12 months, unrealized Losses	(46)	(1)
Short-term investments, less than 12 months, fair value	11,882	1,918
Short-term investments,12 months or greater, unrealized Losses	0	0
Short-term investments, 12 months or greater, fair value	0	0
Short-term investments, unrealized Losses	(46)	(1)
Debt securities, available-for-sale, unrealized loss position, total	11,882	1,918
Corporate debt securities
Debt Securities, Available-for-Sale, Unrealized Loss Position
Short-term investments, less than 12 months, unrealized Losses	(3)	(49)
Short-term investments, less than 12 months, fair value	2,953	8,909
Short-term investments,12 months or greater, unrealized Losses	(1)	(1)
Short-term investments, 12 months or greater, fair value	999	1,999
Short-term investments, unrealized Losses	(4)	(50)
Debt securities, available-for-sale, unrealized loss position, total	3,952	10,908
Asset-backed securities
Debt Securities, Available-for-Sale, Unrealized Loss Position
Short-term investments, less than 12 months, unrealized Losses	(5)	(31)
Short-term investments, less than 12 months, fair value	1,811	5,359
Short-term investments,12 months or greater, unrealized Losses	(2)	0
Short-term investments, 12 months or greater, fair value	994	0
Short-term investments, unrealized Losses	(7)	(31)
Debt securities, available-for-sale, unrealized loss position, total	$ 2,805	$ 5,359

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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