CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Net loss	$ (32,620)	$ (343,322)	$ (546,654)	$ (1,198,274)
Other comprehensive income (loss):
Net unrealized loss on investments (net of tax)	(3,486)	(73)	(10,027)	(345)
Total other comprehensive income (loss)	(3,486)	(73)	(10,027)	(345)
Comprehensive loss	$ (36,106)	$ (343,395)	$ (556,681)	$ (1,198,619)