v3.26.1
Equity Incentive Plans - Schedule 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 Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense $ 60,575 $ 49,307 $ 115,149 $ 93,056
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfRevenue        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 1,639 1,309 3,259 2,533
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 25,054 28,333 50,886 53,478
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 23,847 11,770 43,220 22,780
Location, Statement of Income, Balance [Axis]: us-gaap:SellingAndMarketingExpense        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 7,729 6,696 14,005 11,848
Location, Statement of Income, Balance [Axis]: ttan:ProfessionalServicesAndOtherCostOfRevenue        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 2,306 1,199 3,779 2,417
Option and RSU Grants        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 47,060 35,789 88,560 66,467
Option and RSU Grants | Location, Statement of Income, Balance [Axis]: us-gaap:CostOfRevenue        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 1,639 1,309 3,259 2,533
Option and RSU Grants | Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 11,539 14,815 24,297 26,889
Option and RSU Grants | Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 23,847 11,770 43,220 22,780
Option and RSU Grants | Location, Statement of Income, Balance [Axis]: us-gaap:SellingAndMarketingExpense        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 7,729 6,696 14,005 11,848
Option and RSU Grants | Location, Statement of Income, Balance [Axis]: ttan:ProfessionalServicesAndOtherCostOfRevenue        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 2,306 1,199 3,779 2,417
Co-Founder RSUs        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense 13,515 13,518 26,589 26,589
Co-Founder RSUs | Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense        
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Total stock-based compensation expense $ 13,515 $ 13,518 $ 26,589 $ 26,589