v3.26.1
Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Segment Reporting Information (Details) - USD ($)
$ in Thousands
 3 Months Ended
Apr. 30, 2026
Apr. 30, 2025
Segment Reporting [Line Items]    
Revenue $ 1,390,951 $ 1,042,074
Cost of revenue 464,500 348,786
Sales and marketing 588,952 458,554
Research and development 534,937 472,404
General and administrative 128,716 209,587
Interest income 41,145 53,163
Interest expense (2,080) (2,071)
Other expense, net (9,571) (28,058)
Provision for (benefit from) income taxes (1,089) 5,729
Net income (loss) (295,571) (429,952)
Product revenue    
Segment Reporting [Line Items]    
Revenue 1,334,329 996,813
Professional services and other revenue    
Segment Reporting [Line Items]    
Revenue $ 56,622 $ 45,261
Third-Party Cloud Infrastructure Expenses | Cost Of Product Revenue Benchmark | Cost Of Product Revenue Type Risk    
Segment Reporting [Line Items]    
Concentration risk, percentage 73.00% 68.00%
Personnel-Related Expenses | Cost Of Revenue And Operating Expenses Benchmark | Cost Of Revenue And Operating Expenses Type Risk    
Segment Reporting [Line Items]    
Concentration risk, percentage 37.00% 34.00%
Reportable Segment    
Segment Reporting [Line Items]    
Revenue $ 1,390,951 $ 1,042,074
Sales and marketing 588,952 458,554
Research and development 534,937 472,404
General and administrative 128,716 209,587
Interest income (41,145) (53,163)
Interest expense 2,080 2,071
Other expense, net 9,571 28,058
Provision for (benefit from) income taxes (1,089) 5,729
Net income (loss) (295,571) (429,952)
Reportable Segment | Product revenue    
Segment Reporting [Line Items]    
Cost of revenue 386,874 285,276
Reportable Segment | Professional services and other revenue    
Segment Reporting [Line Items]    
Cost of revenue $ 77,626 $ 63,510