Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Income Tax Disclosure [Abstract]
Tax benefit at U.S. federal statutory rate	$ (15,606)	$ (21,918)	$ (21,540)
State income taxes, net of federal tax benefit	(1,587)	(5,325)	(4,896)
Non-deductible expenses	1,077	3,168	157
Foreign tax differential	183	7	(752)
Stock-based compensation	14,272	10,730	(15,045)
Research and development credits	(2,777)	(1,839)	(2,579)
Change in valuation allowance	6,411	16,260	44,287
Foreign withholding taxes	245	82	0
Other	(961)	14	(93)
Provision for (benefit from) income taxes	$ 1,257	$ 1,179	$ (461)