Equity - Awards Available for Grant (Details) - shares	3 Months Ended	6 Months Ended	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2022	Jan. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Awards Available For Grant [Roll Forward]
Balance, beginning of period (in shares)		18,248,000	4,796,000
Awards authorized (in shares)		7,673,000	22,532,000
Options granted (in shares)	0	0	(7,936,000)
Options cancelled and forfeited (in shares)		849,000	2,044,000
Options repurchased (in shares)		42,000	92,000
Balance, end of period (in shares)	21,870,000	21,870,000	18,248,000
RSUs
Share-based Compensation Arrangement by Share-based Payment Award, Awards Available For Grant [Roll Forward]
RSUs granted (in shares)		(5,103,000)	(3,290,000)
RSUs cancelled and forfeited (in shares)		161,000	10,000