Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2025	Jul. 31, 2024	Jul. 31, 2025	Jul. 31, 2024
Statement of Comprehensive Income [Abstract]
Net loss	$ (95,929)	$ (176,930)	$ (198,033)	$ (909,021)
Foreign currency translation adjustment, net of tax	(1,807)	886	6,944	397
Unrealized gain (loss) on available-for-sale securities, net of tax	(1,330)	380	(1,289)	204
Total other comprehensive income (loss), net of tax	(3,137)	1,266	5,655	601
Comprehensive income (loss)	$ (99,066)	$ (175,664)	$ (192,378)	$ (908,420)