Equity Incentive Plans - Recognized Stock-based Compensation Expense (Details) - 2011 Equity Incentive Plan (the Plan) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 83,859	$ 60,526	$ 33,749
Sales and marketing
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	30,636	21,241	10,936
Research and development
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	24,335	15,853	9,095
General and administrative
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	23,680	18,155	11,218
Interest expense
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	710	705	444
Subscription | Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	2,676	2,819	1,213
Professional services and other | Cost of revenue
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 1,822	$ 1,753	$ 843