Income Taxes - Schedule of Income (Loss) Before Tax Expense (Benefit) (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2026
ISQ Open Infrastructure Company LLC - Series II [Member]
Income (loss) before income taxes:
Total income (loss) before income taxes		$ 11,540,085

Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest.

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+ Details