v3.26.1
Convertible Preferred Stock - Schedule of Preferred Stock (Details) - USD ($)
Mar. 31, 2026
Dec. 31, 2025
Oct. 31, 2025
Mar. 31, 2025
Dec. 31, 2024
Dec. 09, 2024
May 15, 2024
Class of Stock [Line Items]              
Preferred stock, shares authorized 78,762,142 78,762,142          
Preferred stock, shares issued 78,762,142 78,762,142          
Preferred stock, shares outstanding 78,762,142 78,762,142          
Carrying value $ 992,363,123 $ 992,363,123          
Liquidation preference $ 959,959,576 $ 959,959,576          
Common stock issuable upon conversion 84,596,391 84,596,391          
Series A-1 Convertible Preferred Stock              
Class of Stock [Line Items]              
Preferred stock, shares authorized 30,000,000 30,000,000          
Preferred stock, shares issued 30,000,000 30,000,000       10,000,000 20,000,000
Preferred stock, shares outstanding 30,000,000 30,000,000   30,000,000 30,000,000    
Carrying value $ 294,357,583 $ 294,357,583   $ 294,358,000 $ 294,358,000    
Liquidation preference $ 300,000,000 $ 300,000,000          
Common stock issuable upon conversion 30,000,000 30,000,000          
Series A-2 Voting Convertible Preferred Stock              
Class of Stock [Line Items]              
Preferred stock, shares authorized [1] 4,968,789 4,968,789          
Preferred stock, shares issued 4,968,789 [1] 4,968,789 [1]         4,968,789
Preferred stock, shares outstanding [1] 4,968,789 4,968,789          
Carrying value [1] $ 84,500,659 $ 84,500,659          
Liquidation preference [1] $ 49,687,890 $ 49,687,890          
Common stock issuable upon conversion [1] 9,477,719 9,477,719          
Series A-2 Nonvoting Convertible Preferred Stock              
Class of Stock [Line Items]              
Preferred stock, shares authorized [1] 708,814 708,814          
Preferred stock, shares issued 708,814 [1] 708,814 [1]         708,814
Preferred stock, shares outstanding [1] 708,814 708,814          
Carrying value [1] $ 11,447,346 $ 11,447,346          
Liquidation preference [1] $ 7,088,140 $ 7,088,140          
Common stock issuable upon conversion [1] 2,034,133 2,034,133          
Total Series A-2 Convertible Preferred Stock              
Class of Stock [Line Items]              
Preferred stock, shares authorized [1] 5,677,603 5,677,603          
Preferred stock, shares issued [1] 5,677,603 5,677,603          
Preferred stock, shares outstanding [1] 5,677,603 5,677,603          
Carrying value [1] $ 95,948,005 $ 95,948,005          
Liquidation preference [1] $ 56,776,030 $ 56,776,030          
Common stock issuable upon conversion [1] 11,511,852 11,511,852          
Series B Convertible Preferred Stock              
Class of Stock [Line Items]              
Preferred stock, shares authorized 43,084,539 43,084,539          
Preferred stock, shares issued 43,084,539 43,084,539 35,714,285        
Preferred stock, shares outstanding 43,084,539 43,084,539          
Carrying value $ 602,057,535 $ 602,057,535          
Liquidation preference $ 603,183,546 $ 603,183,546          
Common stock issuable upon conversion 43,084,539 43,084,539          
[1]

* No deemed liquidation events occurred prior to November 15, 2025.