Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) |
3 Months Ended | 9 Months Ended | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Jul. 04, 2025 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Jun. 30, 2025 |
Mar. 31, 2025 |
Dec. 31, 2024 |
Jun. 30, 2024 |
Mar. 31, 2024 |
Dec. 31, 2023 |
Sep. 30, 2023 |
Jun. 30, 2023 |
Mar. 31, 2023 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| FDIC Insured Amount | $ 250,000 | $ 250,000 | ||||||||||||||
| Cash equivalents | 0 | 0 | $ 0 | |||||||||||||
| Deferred offering costs | 705,589 | 705,589 | ||||||||||||||
| Unrecognized tax benefits | 0 | 0 | 0 | |||||||||||||
| Accrued for interest and penalties | $ 0 | $ 0 | 0 | |||||||||||||
| Number of Class A common stock into which the class of warrant or right may be converted. | 19,500,000 | 19,500,000 | ||||||||||||||
| Offering costs | $ 12,650,000 | |||||||||||||||
| Offering costs allocated to warrants | $ 926,044 | |||||||||||||||
| Income tax examination, penalties and interest accrued | 1.00% | 1.00% | ||||||||||||||
| Effective income tax rate | (1.70%) | (2.60%) | (0.30%) | (3.40%) | ||||||||||||
| Effective tax rate differs from the statutory tax rate | 21.00% | 21.00% | ||||||||||||||
| Sales and excise tax payable | $ 2,346,016 | $ 2,346,016 | 2,319,976 | |||||||||||||
| Percentage of excise tax on repurchases of stock | 308,459 | 308,459 | 52,294 | |||||||||||||
| Reconciliation change in tax law description | The OBBBA makes permanent many of the provisions previously enacted as part of the 2017 Tax Cut and Jobs Act that were set to expire at the end of 2025 and includes other changes to certain U.S. corporate tax provisions including (i) the restoration of immediate expensing for domestic research and development expenditures, (ii) the reinstatement of 100% bonus depreciation for qualified property and (iii) favorably modifying the section 163(j) interest limitation (similar to EBITDA). | |||||||||||||||
| Class A common stock [Member] | ||||||||||||||||
| Class A common stock subject to possible redemption | $ 6,249,923 | $ 8,593,900 | $ 6,249,923 | $ 8,593,900 | $ 6,183,737 | $ 8,736,618 | $ 8,646,368 | $ 8,501,827 | $ 17,912,636 | $ 17,700,146 | $ 17,444,748 | $ 17,144,935 | $ 238,626,268 | $ 236,385,597 | $ 234,600,000 | |