CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Statement of Comprehensive Income [Abstract]
Net loss	$ (2,007)	$ (9,776)	$ (86,681)	$ (144,898)
Other comprehensive income (loss), net of tax:
Unrealized income (loss) on available-for-sale securities	3,845	1,734	4,853	(818)
Foreign currency translation adjustment	849	(29)	6,346	(1,121)
Other comprehensive income (loss)	4,694	1,705	11,199	(1,939)
Total comprehensive income (loss)	$ 2,687	$ (8,071)	$ (75,482)	$ (146,837)