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Fair Value Measurements - Assumptions Used to Estimate Fair Value of Series A Warrants (Detail) | Sep. 30, 2025 yr | Jul. 09, 2025 yr
--- | --- | ---
Risk-free Interest Rate [Member] | Series A Warrants [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assumptions used to estimate fair value of Series A warrants | 0.0387 | 0.0407
Expected Term (in Years) [Member] | Series A Warrants [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assumptions used to estimate fair value of Series A warrants | 6.78 | 7
Expected Volatility [Member] | Series A Warrants [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assumptions used to estimate fair value of Series A warrants | 0.95 | 0.95
Dividend Yield [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assumptions used to estimate fair value of Series A warrants | 0 |
Dividend Yield [Member] | Series A Warrants [Member] |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |
Assumptions used to estimate fair value of Series A warrants | 0 | 0

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