v3.26.3
Capital Structure - Additional Information (Details) - USD ($)
$ / shares in Units, $ in Thousands
 1 Months Ended 9 Months Ended
Feb. 28, 2025
Sep. 30, 2026
Sep. 30, 2025
Feb. 06, 2026
Dec. 31, 2025
Class of Stock [Line Items]          
Original issue price   $ 0.0001     $ 0.0001
Shares issued   0     222,658,133
Common stock warrants at fair values     $ 6,300    
Fair value exceeded carrying value     6,400    
Carrying value exceeded fair value     8,700    
Extinguishments reduction to net loss available to common shareholders     2,300    
Warrants to purchase exercise price per share $ 43.59        
Modified adjusted Preferred stock increase in fair value     11,700    
Increase in net loss available to common stockholders from equity modifications     11,700    
Gross cash proceeds form sale of common stock   $ 459 811    
Dividends declared   $ 0      
Common stock voting right   one      
Common Stock | IPO          
Class of Stock [Line Items]          
Redeemable convertible preferred stock, number of shares of common stock issued upon conversion       29,855,741  
Warrant          
Class of Stock [Line Items]          
Additional Paid in Capital $ 6,300        
Maximum          
Class of Stock [Line Items]          
Warrants to purchase 739,559        
Series A          
Class of Stock [Line Items]          
Original issue price         $ 1
Shares issued         48,000,000
Series A-1          
Class of Stock [Line Items]          
Original issue price         $ 2
Shares issued         51,268,891
Series B          
Class of Stock [Line Items]          
Original issue price         $ 17.69
Shares issued         17,456,768
Shares returned by the holders in exchange of redeemable convertible preferred stock 11,814,375        
New issuance convertible preferred stock     16,700    
Derecognition of redeemable convertible preferred stock     172,800    
Decrease in carrying amount of redeemable preferred stock     64,100    
Series B-1          
Class of Stock [Line Items]          
Original issue price         $ 5.84
Shares issued 35,756,908       35,756,908
New issuance convertible preferred stock     149,600    
Increase in carrying amount of redeemable Convertible preferred stock     74,600    
Series C          
Class of Stock [Line Items]          
Original issue price         $ 21.5
Shares issued         5,194,787
Shares returned by the holders in exchange of redeemable convertible preferred stock 1,352,470        
New issuance convertible preferred stock     4,800    
Derecognition of redeemable convertible preferred stock     30,000    
Decrease in carrying amount of redeemable preferred stock     6,500    
Series C-1          
Class of Stock [Line Items]          
Original issue price         $ 5.84
Shares issued 4,975,110       4,975,110
New issuance convertible preferred stock     23,100    
Increase in carrying amount of redeemable Convertible preferred stock     $ 7,700    
Series D          
Class of Stock [Line Items]          
Original issue price $ 5.84       $ 5.84
Shares issued 60,005,669       60,005,669
Gross proceeds convertible preferred stock $ 350,700