v3.26.1
Equity - Valuation Assumptions (Details) - $ / shares
3 Months Ended 6 Months Ended
Jul. 31, 2026
Jan. 31, 2026
Jul. 31, 2026
Jul. 31, 2026
Jul. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology          
Expected dividend yield       0.00% 0.00%
Equity-Classified Restricted Stock Units (RSUs) | Fiscal 2027 CEO PRSU          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology          
Expected term (in years)     7 years    
Expected volatility     63.00%    
Risk-free interest rate     4.30%    
Equity-Classified Restricted Stock Units (RSUs) | Fiscal 2027 CEO PRSU | Minimum          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology          
Tranche grant date fair value (in dollars per share) $ 182.58   $ 182.58 $ 182.58  
Equity-Classified Restricted Stock Units (RSUs) | Fiscal 2027 CEO PRSU | Maximum          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology          
Tranche grant date fair value (in dollars per share) $ 199.96   $ 199.96 $ 199.96  
ESPP Rights          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology          
Expected term (in years)       6 months 6 months
Expected volatility       52.80% 54.10%
Risk-free interest rate       3.70% 4.30%
Expected dividend yield       0.00% 0.00%
Liability-Classified Performance Shares | 2020 Equity Incentive Plan          
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology          
Expected volatility 71.00% 50.00%      
Risk-free interest rate 3.90% 3.50%