CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2025	Apr. 30, 2024
Statement of Comprehensive Income [Abstract]
Net loss	$ (37,626)	$ (80,593)
Other comprehensive income (loss), net of tax:
Unrealized income (loss) on available-for-sale securities	6,858	(9,541)
Foreign currency translation adjustment	7,081	(1,007)
Other comprehensive income (loss)	13,939	(10,548)
Total comprehensive loss	$ (23,687)	$ (91,141)