Consolidated Statement of Cash Flows	9 Months Ended
	Dec. 31, 2025 USD ($)
ISQ Open Infrastructure Company LLC - Series I
Cash flows from operating activities
Net increase in net assets resulting from operations	$ 6,698,504
Adjustments to reconcile net increase in net assets resulting from operations to net cash used in operating activities:
Purchase of limited liability company interests in ISQ Open Infrastructure Company LLC – Series II	(29,470,330)
Net investment income and expenses allocated from ISQ Open Infrastructure Company LLC – Series II	1,035,939
Net change in unrealized gain (loss) on investments	(7,758,958)
Amortization of deferred offering costs	48,587
Net (increase) decrease in operating assets:
Due from Manager - Expense Support	(476,948)
Net increase (decrease) in operating liabilities:
Organizational costs payable	268,457
Professional fees payable	176,749
Net cash used in operating activities	(29,478,000)
Cash flows from financing activities
Capital contributions	29,485,000
Net cash provided by financing activities	29,485,000
Net increase in cash	7,000
Cash, beginning of period
Cash, end of period	7,000
ISQ Open Infrastructure Company LLC - Series II
Cash flows from operating activities
Net increase in net assets resulting from operations	30,205,958
Adjustments to reconcile net increase in net assets resulting from operations to net cash used in operating activities:
Purchases of investments	(139,905,655)
Payment-in-kind interest capitalized	(31,759)
Net change in unrealized gain (loss) on investments	(34,509,110)
Amortization of deferred offering costs	411,159
Amortization of debt issuance costs	20,774
Amortization/accretion of servicing fees	156,028
Net (increase) decrease in operating assets:
Due from Manager - Expense Support	(4,360,335)
Prepaid expenses and other assets	(158,043)
Net increase (decrease) in operating liabilities:
Performance participation allocation payable	3,415,609
Organizational costs payable	2,559,348
Interest payable	1,694,183
Management fees payable	212,689
Accounts payable & accrued expenses	465,045
Professional fees payable	164,062
Net cash used in operating activities	(139,660,047)
Cash flows from financing activities
Capital contributions	130,765,518
Distributions declared	(7,500)
Borrowings from Promissory Notes	858,000
Borrowings from loans	10,510,000
Debt issuance costs paid	(188,000)
Net cash provided by financing activities	141,938,018
Net increase in cash	2,277,971
Cash, beginning of period
Cash, end of period	$ 2,277,971