CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (54,246)	$ (77,294)
Other comprehensive income (loss), net of tax:
Unrealized income (loss) on available-for-sale securities	818	(2,364)
Foreign currency translation adjustment	921	613
Other comprehensive income (loss)	1,739	(1,751)
Total comprehensive loss	$ (52,507)	$ (79,045)