Stock-Based Compensation - Components of Stock Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2023	Jul. 31, 2022	Jul. 31, 2023	Jul. 31, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	$ 52,846	$ 41,001	$ 72,631	$ 108,395
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	4,068	2,399	4,247	8,241
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	15,452	13,495	23,958	30,242
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	13,681	9,715	16,811	26,277
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	20,705	15,392	27,615	44,695
Restructuring
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]
Total	$ (1,060)	$ 0	$ 0	$ (1,060)