v3.26.1
Fair Value Measurements - Summary of Information About Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Fair Value, Inputs, Level 1    
Assets:    
Assets $ 13,512 $ 38,721
Liabilities:    
Derivative liabilities 42,692 85,842
Fair Value, Inputs, Level 1 | Money market funds    
Assets:    
Cash equivalents 13,512 38,721
Fair Value, Inputs, Level 2    
Assets:    
Assets 520,836 544,981
Fair Value, Inputs, Level 2 | US treasury securities, short term    
Assets:    
Assets 370,100 398,660
Fair Value, Inputs, Level 2 | US treasury securities, long term    
Assets:    
Assets 150,736 146,321
Fair Value, Inputs, Level 3    
Liabilities:    
Derivative liabilities 6,182 16,751
Public Warrants | Fair Value, Inputs, Level 1 | Derivative    
Liabilities:    
Derivative liabilities 42,692 85,842
Private Warrants | Fair Value, Inputs, Level 3 | Derivative    
Liabilities:    
Derivative liabilities $ 6,182 $ 16,751