Stock-Based Compensation - Components of Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2023	Oct. 31, 2022	Oct. 31, 2023	Oct. 31, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	$ 54,913	$ 45,687	$ 118,318	$ 163,308
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	4,329	2,835	7,082	12,570
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	15,634	13,996	37,954	45,876
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	14,085	12,166	28,977	40,362
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	20,865	16,690	44,305	65,560
Restructuring
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	$ 0	$ 0	$ 0	$ (1,060)