CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2022	Jul. 31, 2021
Net loss	$ (209,712)	$ (383,951)	$ (514,034)	$ (854,952)
Other comprehensive income (loss):
Net unrealized loss on investments (net of tax)	(3,827)	(116)	(6,541)	(272)
Total other comprehensive income (loss)	(3,827)	(116)	(6,541)	(272)
Comprehensive loss	$ (213,539)	$ (384,067)	$ (520,575)	$ (855,224)