Fair Value Measurement and Disclosures - Schedule of Reconciliation of Investments Level III Inputs (Details) - Level III [Member] - ISQ Open Infrastructure Company LLC - Series II [Member]	6 Months Ended
Jun. 30, 2026 USD ($)
Schedule of Reconciliation of Investments Level III Inputs [Line Items]
Balance as of December 31, 2025	$ 183,179,945
Purchases of investments	142,275,836
Return of capital	(8,151,373)
Net change in unrealized gain (loss) on investments	14,591,778
Transfers out of Level III
Transfers into Level III
Balance as of June 30, 2026	$ 331,896,186

Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3.

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Amount of purchases of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing.

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Amount of dividend distribution by investment company from long-term capital gain.

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