CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2024	Oct. 31, 2023	Oct. 31, 2024	Oct. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (9,776)	$ (29,297)	$ (144,898)	$ (121,140)
Other comprehensive income (loss), net of tax:
Unrealized income (loss) on available-for-sale securities	1,734	(2,447)	(818)	(7,610)
Foreign currency translation adjustment	(29)	(2,933)	(1,121)	(907)
Other comprehensive income (loss)	1,705	(5,380)	(1,939)	(8,517)
Total comprehensive loss	$ (8,071)	$ (34,677)	$ (146,837)	$ (129,657)