v3.26.1
Stockholders' Equity - Schedule of Components of Stock-Based Compensation Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jul. 31, 2026
Jul. 31, 2025
Jul. 31, 2026
Jul. 31, 2025
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Total stock-based compensation expense $ 62,972 $ 7,551 $ 139,000 $ 17,642
Stock-based compensation capitalized in internal-use software 54 6 520 39
Total stock-based compensation 63,026 7,557 139,520 17,681
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfRevenue        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Total stock-based compensation expense 3,445 421 7,442 927
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Total stock-based compensation expense 23,521 553 49,953 1,457
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Total stock-based compensation expense 25,160 3,491 56,395 8,799
Location, Statement of Income, Balance [Axis]: us-gaap:SellingAndMarketingExpense        
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]        
Total stock-based compensation expense $ 10,846 $ 3,086 $ 25,210 $ 6,459