Fair Value of Financial Instruments - Summary of Amortized Cost, Unrealized Gain (Loss) and Estimated Fair Value of Cash Equivalents and Short-term Investments (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, Amortized Cost	$ 176,831	$ 202,446
Cash equivalents, Estimated Fair Value	176,831	202,446
Short-term investments, Amortized Cost	44,652
Short-term investments, Unrealized Loss	(85)
Short-term investments, Estimated Fair Value	44,567
Total cash equivalents and short term investments, Amortized Cost	221,483
Total cash equivalents and short term investments, Unrealized Loss	(85)
Total cash equivalents and short term investments, Estimated Fair Value	221,398
U.S. Treasury Securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term investments, Amortized Cost	44,652
Short-term investments, Unrealized Loss	(85)
Short-term investments, Estimated Fair Value	44,567
Money Market Funds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Cash equivalents, Amortized Cost	176,831	202,446
Cash equivalents, Estimated Fair Value	$ 176,831	$ 202,446