v3.26.1
Stockholders' Equity - Narrative (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended
Oct. 31, 2025
shares
Apr. 30, 2026
USD ($)
vote
segment
$ / shares
shares
Apr. 30, 2025
USD ($)
$ / shares
Jan. 31, 2026
shares
Class of Stock [Line Items]        
Common stock, capital shares reserved for future issuance (in shares) 2,070,000,000 102,960,376   91,406,527
Preferred stock, capital shares reserved for future issuance (in shares) 20,000,000      
Stock issued during period, shares, conversion of convertible securities (in shares) 146,599,125      
Options, grants in period, weighted average grant date fair value (in dollars per share) | $ / shares   $ 5.94 $ 13.50  
Options, vested in period, fair value | $   $ 16,200 $ 21,300  
Exercises, aggregate intrinsic value | $   16,981 $ 2,500  
Share-based payment arrangement, nonvested award, option, cost not yet recognized, amount | $   77,800    
Share-based payment arrangement, plan modification, incremental cost | $   $ 1,100    
Stock options issued and outstanding        
Class of Stock [Line Items]        
Common stock, capital shares reserved for future issuance (in shares)   37,455,860   39,283,485
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)   1 year 10 months 24 days    
Restricted Stock Units with Performance Conditions        
Class of Stock [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 compensation arrangement by share-based payment award, award requisite service period (in years)   4 years    
Share-based payment arrangement, nonvested award, excluding option, cost not yet recognized, amount | $   $ 269,700    
Common Class A and B        
Class of Stock [Line Items]        
Common stock, capital shares reserved for future issuance (in shares) 2,050,000,000      
Class A common stock        
Class of Stock [Line Items]        
Common stock, capital shares reserved for future issuance (in shares) 2,000,000,000      
Common stock, number of votes | vote   1    
Class A common stock | Common Stock        
Class of Stock [Line Items]        
Conversion of Class A to Class B common stock (in shares) 15,304,696      
Class B common stock        
Class of Stock [Line Items]        
Common stock, capital shares reserved for future issuance (in shares) 50,000,000      
Common stock, number of votes | segment   30