Fair Value Measurements - Schedule of Second Amended and Restated Promissory Note (Details)	Sep. 30, 2025	Sep. 16, 2025	Jul. 29, 2025
Estimated deSPAC stock price [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of quantitative information	3.36	3.74	5.76
Remaining term [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of quantitative information	1.8	1.9	1.7
Volatility [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of quantitative information	102.4	102.4	102.4
Risk-free rate [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of quantitative information	3.55	3.46	3.85
Implied probability of successful initial Business Combination [Member]
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of quantitative information	74.4	73.7	70