Income Taxes - Schedule of Reconciliation Between the Provision (Benefit) for Income Taxes at the Statutory Rate and the Effective Tax Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Income Tax Disclosure [Abstract]
Provision at U.S. notional statutory rate	$ (24,723)	$ (31,191)	$ (14,897)
U.S. state taxes	2	6	114
Non-U.S. foreign tax differential	19,293	25,736	12,943
Stock-based compensation	6,985	4,847	10,004
U.S. R&D credit	(5,109)	(7,232)	(5,045)
Valuation allowance	5,022	28,311	2,124
FIN48 interest	12	45	(739)
Uncertain tax position release	(2,766)	0	(10,188)
Other	682	365	132
Provision (benefit) for income taxes	$ (602)	$ 20,887	$ (5,552)