Fair Value of Financial Instruments - Summary of Financial Assets Subject to Fair Value (Details) - USD ($) $ in Thousands	Oct. 31, 2022	Jan. 31, 2022
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	$ 176,831	$ 202,446
Short-term investments	44,567	170,000
Total cash equivalents and short-term investments	221,398
Money Market Funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	176,831	202,446
Recurring
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	176,831	202,446
Short-term investments	44,567
Total cash equivalents and short-term investments	221,398
Recurring | U.S. Treasury Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Short-term investments	44,567
Recurring | Money Market Funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	176,831
Recurring | Level 1
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	176,831	$ 202,446
Short-term investments	44,567
Total cash equivalents and short-term investments	221,398
Recurring | Level 1 | U.S. Treasury Securities
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Short-term investments	44,567
Recurring | Level 1 | Money Market Funds
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Cash equivalents	$ 176,831