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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2023	Apr. 30, 2022
Statement Of Income And Comprehensive Income [Abstract]
Net loss	$ (35,902)	$ (10,822)
Other comprehensive income, net of tax:
Net unrealized gains on investments	110	0
Other comprehensive income, net of tax	110	0
Comprehensive loss	$ (35,792)	$ (10,822)

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