Equity - Share-based Compensation (Details) - USD ($) $ in Thousands	12 Months Ended
Jan. 31, 2022	Jan. 31, 2021	Jan. 31, 2020
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Stock-based compensation, net of amounts capitalized	$ 605,095	$ 301,441	$ 78,399
Capitalized stock-based compensation	24,174	2,072	1,080
Total stock-based compensation	629,269	303,513	79,479
Cost of revenue
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Stock-based compensation, net of amounts capitalized	87,336	33,642	3,650
Sales and marketing
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Stock-based compensation, net of amounts capitalized	185,970	97,879	20,757
Research and development
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Stock-based compensation, net of amounts capitalized	232,867	99,223	15,743
General and administrative
Share-based Payment Arrangement, Expensed and Capitalized, Amount
Stock-based compensation, net of amounts capitalized	$ 98,922	$ 70,697	$ 38,249

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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