v3.26.1
Redeemable Convertible Preferred Stock, Redeemable Common Stock, and Stockholders’ Equity (Deficit) - Common Stock (Details)
$ / shares in Units, $ in Billions
 1 Months Ended 6 Months Ended 12 Months Ended
Apr. 30, 2026
USD ($)
$ / shares
shares
Jan. 31, 2026
USD ($)
$ / shares
shares
Jun. 30, 2026
voting_right
$ / shares
shares
Dec. 31, 2025
voting_right
$ / shares
shares
Class of Stock [Line Items]        
Common shares, shares authorized (in shares)     3,400,000,000 3,400,000,000
Common shares, par value (usd per share) | $ / shares     $ 0.000005 $ 0.000005
Common stock dividends declared (usd per share) | $ / shares     $ 0 $ 0
Private Placement        
Class of Stock [Line Items]        
Shares issued in transaction (in shares) 9,000,000 23,000,000    
Stock price (usd per share) | $ / shares $ 109.00 $ 87.20    
Aggregate gross proceeds | $ $ 1.0 $ 2.0    
Common Class C        
Class of Stock [Line Items]        
Common shares, shares authorized (in shares)     200,000,000 200,000,000
Common shares, par value (usd per share) | $ / shares     $ 0.000005 $ 0.000005
Common shares, shares issued (in shares)     0 0
Common shares, shares outstanding (in shares)     0 0
Voting rights for common stock | voting_right     0  
Common Class A        
Class of Stock [Line Items]        
Common shares, shares authorized (in shares)     3,000,000,000  
Common shares, par value (usd per share) | $ / shares     $ 0.000005 $ 0.000005
Common shares, shares issued (in shares)     464,000,000 401,000,000
Common shares, shares outstanding (in shares)     457,000,000 394,000,000
Voting rights for common stock | voting_right     1  
Common Class B        
Class of Stock [Line Items]        
Common shares, shares authorized (in shares)       200,000,000
Common shares, par value (usd per share) | $ / shares     $ 0.000005 $ 0.000005
Common shares, shares issued (in shares)     94,000,000 108,000,000
Common shares, shares outstanding (in shares)     94,000,000 108,000,000
Voting rights for common stock | voting_right     10 1