v3.26.1
EQUITY INCENTIVE PLANS - Narrative (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Oct. 31, 2025
USD ($)
shares
Apr. 30, 2025
shares
Apr. 30, 2024
shares
Jan. 31, 2026
USD ($)
$ / shares
shares
Jan. 31, 2025
USD ($)
$ / shares
shares
Jan. 31, 2024
USD ($)
$ / shares
shares
Oct. 30, 2025
shares
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Common stock, capital shares reserved for future issuance (in shares) | shares       86,406,527 197,511,756   2,070,000,000
Common stock, capital shares reserved for future issuance, increase in authorized shares per year, period of increase (in years)       10 years      
Common stock, capital shares reserved for future issuance, increase in authorized shares per year, increase percentage       0.05      
Total antidilutive securities (in shares) | shares       49,419,957 205,021,242 203,233,440  
Options, grants in period, weighted average grant date fair value (in dollars per share) | $ / shares       $ 13.76 $ 11.87 $ 10.78  
Exercises, aggregate intrinsic value       $ 49,674 $ 9,100 $ 6,000  
Options, vested in period, fair value       73,400 135,900 73,800  
Share-based payment arrangement, nonvested award, option, cost not yet recognized, amount       97,700      
Share-based payment arrangement, accelerated cost $ 81,800     101,800      
Capitalized stock-based compensation $ 900     4,933 2,319 1,130  
Total stock-based compensation expense, net of amounts capitalized       182,089 76,981 75,851  
Share-based payment arrangement, plan modification, incremental cost       $ 7,900 $ 2,100 $ 5,000  
Vested and expected to vest as of end of period (in shares) | shares       39,283,485 2,254    
Vested and expected to vest as end of period, weighted average remaining contractual term (in years)       5 years 1 month 6 days 2 years 3 months 18 days    
Share-based compensation arrangement by share-based payment award, shares issued in period (in shares) | shares 934,353            
Shares of common stock subject to repurchase              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Total antidilutive securities (in shares) | shares       5,284 49,761 133,332  
Stock options issued and outstanding              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Common stock, capital shares reserved for future issuance (in shares) | shares       39,283,485 40,971,097    
Award vesting period (in years)       4 years      
Award expiration period (in years)       10 years      
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition (in years)       2 years 1 month 6 days      
Restricted Stock Units with Performance Conditions              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition (in years)       3 years 2 months 12 days      
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount       $ 82,500      
Restricted Stock Units with Service-Only Conditions              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition (in years)       3 years 7 months 6 days      
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount       $ 58,100      
Total stock-based compensation expense, net of amounts capitalized       6,200      
Employee Stock              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Weighted average number of shares, common stock subject to repurchase or cancellation (in shares) | shares   49,761 133,332        
Common stock subject to repurchase or cancellation, liability       $ 100 $ 1,000 $ 2,600  
Award expiration period (in years)       12 months      
Share-based compensation arrangement by share-based payment award, shares issued in period (in shares) | shares       0      
Vested Stock Option              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Total stock-based compensation expense, net of amounts capitalized         6,000    
Unvested Stock Option              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Total stock-based compensation expense, net of amounts capitalized         $ 7,000    
Class A common stock              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Common stock, capital shares reserved for future issuance (in shares) | shares       2,000,000,000      
2025 Equity Incentive Plan              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Common stock, capital shares reserved for future issuance (in shares) | shares       82,887,502      
2025 Equity Incentive Plan | Class A common stock              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Common stock, capital shares reserved for future issuance, new shares (in shares) | shares       35,000,000      
Share-based compensation arrangement by share-based payment award, number of shares available for grant (in shares) | shares       37,811,841      
2015 Equity Incentive Plan | Class A common stock              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Common stock, capital shares reserved for future issuance, existing shares (in shares) | shares       47,887,502      
2025 Employee Stock Purchase Plan              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based payment arrangement, nonvested award, cost not yet recognized, period for recognition (in years)       8 months 12 days      
Total stock-based compensation expense, net of amounts capitalized       $ 500      
Employee stock purchase plan, contingent increase, percentage       0.01      
Stock-based compensation expense       $ 1,700      
2025 Employee Stock Purchase Plan | Class A common stock | Employee Stock              
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]              
Share-based compensation arrangement by share-based payment award, number of shares authorized (in shares) | shares       5,000,000