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CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (29,297)	$ (84,841)	$ (121,140)	$ (281,000)
Other comprehensive (loss) income, net of tax:
Unrealized (loss) gain on available-for-sale securities	(2,447)	1,139	(7,610)	(62)
Foreign currency translation adjustment	(2,933)	(736)	(907)	(801)
Other comprehensive (loss) income	(5,380)	403	(8,517)	(863)
Total comprehensive loss	$ (34,677)	$ (84,438)	$ (129,657)	$ (281,863)

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