v3.26.3
Fair Value of Financial Instruments - Summary of Assumptions used to Value Founder Shares Liability (Detail) - Founder Holder Earnout Shares Liability [Member]
Sep. 30, 2026
Share price hurdles | Minimum [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Derivative Liability, Measurement Input 400
Share price hurdles | Maximum [Member]  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Derivative Liability, Measurement Input 480
Expected volatility  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Derivative Liability, Measurement Input 58.7
Risk-free interest rate  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Derivative Liability, Measurement Input 4.2
Remaining term  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Remaining term 3 months 7 days
Dividend yield  
Fair Value Measurement Inputs and Valuation Techniques [Line Items]  
Derivative Liability, Measurement Input 0