Income Taxes - Summary of Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2024	Jul. 31, 2023	Jul. 31, 2024	Jul. 31, 2023
Income Tax Disclosure [Abstract]
Loss before income taxes	$ (34,142)	$ (34,602)	$ (71,316)	$ (68,858)
Provision (benefit) for income taxes	$ 747	$ (3,404)	$ 1,505	$ (1,758)
Effective tax rate	(2.20%)	9.80%	(2.10%)	2.60%