Fair Value Measurements - Assets and Liabilities (Details) - Fair Value, Recurring - USD ($) $ in Thousands	Jan. 31, 2023	Jan. 31, 2022
Assets
Total financial assets	$ 238,945	$ 254,716
Liabilities
Total financial liabilities		6,018
Private Placement Warrants
Liabilities
Redeemable convertible preferred stock warrant liability		25
Redeemable convertible preferred stock warrant
Liabilities
Redeemable convertible preferred stock warrant liability		5,993
Money market funds
Assets
Money market funds	133,979	254,716
U.S. Treasury securities
Assets
Money market funds	104,966
Level 1
Assets
Total financial assets	133,979	254,716
Liabilities
Total financial liabilities		0
Level 1 | Private Placement Warrants
Liabilities
Redeemable convertible preferred stock warrant liability		0
Level 1 | Redeemable convertible preferred stock warrant
Liabilities
Redeemable convertible preferred stock warrant liability		0
Level 1 | Money market funds
Assets
Money market funds	133,979	254,716
Level 1 | U.S. Treasury securities
Assets
Money market funds	0
Level 2
Assets
Total financial assets	104,966	0
Liabilities
Total financial liabilities		0
Level 2 | Private Placement Warrants
Liabilities
Redeemable convertible preferred stock warrant liability		0
Level 2 | Redeemable convertible preferred stock warrant
Liabilities
Redeemable convertible preferred stock warrant liability		0
Level 2 | Money market funds
Assets
Money market funds	0	0
Level 2 | U.S. Treasury securities
Assets
Money market funds	104,966
Level 3
Assets
Total financial assets	0	0
Liabilities
Total financial liabilities		6,018
Level 3 | Private Placement Warrants
Liabilities
Redeemable convertible preferred stock warrant liability		25
Level 3 | Redeemable convertible preferred stock warrant
Liabilities
Redeemable convertible preferred stock warrant liability		5,993
Level 3 | Money market funds
Assets
Money market funds	0	$ 0
Level 3 | U.S. Treasury securities
Assets
Money market funds	$ 0