Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Income Tax Disclosure [Abstract]
Benefit from income taxes at U.S. federal statutory rate	$ (56,720)	$ (24,594)	$ (16,029)
State taxes, net of federal benefit	82	49	41
Foreign tax rate differential	(1,297)	(1,836)	(6,852)
Stock-based compensation	(23,442)	1,195	771
Non-deductible expenses	322	84	109
Change in valuation allowance	81,739	25,564	22,857
Other	320	(2)	(660)
Total provision for income taxes	$ 1,004	$ 460	$ 237