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Fair Value of Financial Instruments - Summary of Assumptions used to Value Founder Shares Liability (Detail) - Founder Holder Earnout Shares Liability [Member] | Sep. 30, 2025
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Exercise price | Minimum [Member] |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Derivative Liability, Measurement Input | 400
Exercise price | 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 | 66.3
Risk-free interest rate |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Derivative Liability, Measurement Input | 3.7
Remaining term |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Remaining term | 1 year 3 months 7 days
Dividend yield |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |
Derivative Liability, Measurement Input | 0

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