Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2025	Jan. 31, 2024	Jan. 31, 2023
Statement of Comprehensive Income [Abstract]
Net loss	$ (117,126)	$ (169,417)	$ (65,386)
Other comprehensive income (loss), net of tax:
Net unrealized gains (losses) on investments	(50)	309	(492)
Other comprehensive income (loss), net of tax	(50)	309	(492)
Comprehensive loss	$ (117,176)	$ (169,108)	$ (65,878)