Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2024	Jan. 31, 2023	Jan. 31, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (457,609)	$ (345,108)	$ (132,241)
Other comprehensive income (loss):
Foreign currency translation adjustment, net of tax	9	(7,716)	(8,374)
Available-for-sale short-term investments:
Unrealized loss on short-term investments, net of tax	0	(449)	0
Reclassification adjustment for net realized gains on short-term investments included in net income, net of tax	449	0	0
Other comprehensive income (loss)	458	(8,165)	(8,374)
Comprehensive loss	$ (457,151)	$ (353,273)	$ (140,615)