Income Taxes - Summary of Domestic and Foreign Components of Loss before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2026	Jan. 31, 2025	Jan. 31, 2024
Income Tax Disclosure [Abstract]
U.S.	$ 129,333	$ (136,507)	$ (168,587)
Foreign	(28,705)	58,407	92,772
Income (loss) before income taxes	$ 100,628	$ (78,100)	$ (75,815)