Common Stock and Stockholders' Equity (Deficit) - Summary of Stock-Based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Apr. 30, 2022	Apr. 30, 2021	Jul. 31, 2022	Jul. 31, 2021
Stock-based compensation expense:
Stock-based compensation expense, net of amounts capitalized	$ 42,403	$ 1,498	$ 88,662	$ 3,224
Capitalized stock-based compensation	906		1,788
Total stock-based compensation expense	43,309	1,498	90,450	3,224
Cost Of Revenue [Member] | Support
Stock-based compensation expense:
Stock-based compensation expense, net of amounts capitalized	2,221	79	4,180	185
Cost Of Revenue [Member] | Cloud Hosted Services
Stock-based compensation expense:
Stock-based compensation expense, net of amounts capitalized	686	2	1,326	5
Cost Of Revenue [Member] | Professional Services and Other
Stock-based compensation expense:
Stock-based compensation expense, net of amounts capitalized	652	12	1,380	24
Sales And Marketing [Member]
Stock-based compensation expense:
Stock-based compensation expense, net of amounts capitalized	14,421	531	28,814	1,223
Research And Development [Member]
Stock-based compensation expense:
Stock-based compensation expense, net of amounts capitalized	10,507	413	25,245	836
General And Administrative [Member]
Stock-based compensation expense:
Stock-based compensation expense, net of amounts capitalized	$ 13,916	$ 461	$ 27,717	$ 951