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Fair Value Measurements - Schedule of Fair Value Hierarchy For Company's Assets Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Jul. 31, 2023	Jan. 31, 2023
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents	$ 12,667	$ 30,361
Total short-term investments	124,361	127,856
U.S. government treasury securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	95,780	71,253
U.S. government agency securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	11,882	7,841
Commercial paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	9,941	31,500
Corporate debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	3,953	11,902
Asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	2,805	5,360
Money market funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents	12,667	29,239
Corporate debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents		1,122
Fair Value, Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents	12,667	30,361
Total short-term investments	124,361	127,856
Total	137,028	158,217
Fair Value, Recurring | U.S. government treasury securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	95,780	71,253
Fair Value, Recurring | U.S. government agency securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	11,882	7,841
Fair Value, Recurring | Commercial paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	9,941	31,500
Fair Value, Recurring | Corporate debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	3,953	11,902
Fair Value, Recurring | Asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	2,805	5,360
Fair Value, Recurring | Money market funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents	12,667	29,239
Fair Value, Recurring | Corporate debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents		1,122
Fair Value, Recurring | Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents	12,667	29,239
Total short-term investments	0	0
Total	12,667	29,239
Fair Value, Recurring | Level 1 | U.S. government treasury securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	0	0
Fair Value, Recurring | Level 1 | U.S. government agency securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	0	0
Fair Value, Recurring | Level 1 | Commercial paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	0	0
Fair Value, Recurring | Level 1 | Corporate debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	0	0
Fair Value, Recurring | Level 1 | Asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	0	0
Fair Value, Recurring | Level 1 | Money market funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents	12,667	29,239
Fair Value, Recurring | Level 1 | Corporate debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents		0
Fair Value, Recurring | Level 2
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents	0	1,122
Total short-term investments	124,361	127,856
Total	124,361	128,978
Fair Value, Recurring | Level 2 | U.S. government treasury securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	95,780	71,253
Fair Value, Recurring | Level 2 | U.S. government agency securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	11,882	7,841
Fair Value, Recurring | Level 2 | Commercial paper
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	9,941	31,500
Fair Value, Recurring | Level 2 | Corporate debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	3,953	11,902
Fair Value, Recurring | Level 2 | Asset-backed securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total short-term investments	2,805	5,360
Fair Value, Recurring | Level 2 | Money market funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents	$ 0	0
Fair Value, Recurring | Level 2 | Corporate debt securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis
Total cash equivalents		$ 1,122

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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