v3.26.1
Fair Value Measurements - Schedule of Changes In Estimated Fair Values of Liabilities (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
PIPE Warrants        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance $ 110,881      
Issuance during the year     $ 86,359  
Fair value remeasurement (45,276)   24,522  
Ending balance 65,605   110,881  
NRA Warrants        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance 47,465      
Fair value remeasurement (19,382)      
Ending balance 28,083   47,465  
Second Lien Loans        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance 10,872      
Issuance during the year     43,865  
Fair value remeasurement 474   24,387  
Ending balance $ 11,346   10,872  
SAFE        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance   $ 59,301 59,301 $ 10,000
Issuance during the year   21,660 23,660 45,192
Fair value remeasurement   108,375 190,075 4,109
Ending balance   189,336   59,301
Redeemable convertible preferred stock warrants        
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]        
Beginning balance   1,619 1,619 2,045
Issuance during the year   0    
Fair value remeasurement   115 $ 7,272 (426)
Ending balance   $ 1,734   $ 1,619