Equity Incentive Plans and Stock-based Compensation - Summary of Stock-Based Compensation Expense in Condensed Consolidated Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2022	Oct. 31, 2021	Oct. 31, 2022	Oct. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 81,091	$ 95,103	$ 270,797	$ 438,551
Cost of revenue | Subscription services
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	2,844	2,045	8,901	9,916
Cost of revenue | Professional services and other
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	2,557	4,305	8,959	27,140
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	30,763	41,823	117,410	202,122
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	23,435	24,866	73,559	114,460
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 21,492	$ 22,064	$ 61,968	$ 84,913