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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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Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

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