Shareholders' Equity - Schedule of Issued Share Under the DRIP (Details) - ISQ Open Infrastructure Company LLC Series I [Member] - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2026
Class of Stock [Line Items]
Shares Reinvested	15,157	19,416
Dollars Reinvested	$ 487,751	$ 616,868
F-STE Shares [Member]
Class of Stock [Line Items]
Shares Reinvested	3,130	3,559
Dollars Reinvested	$ 100,791	$ 113,791
F-DTE Shares [Member]
Class of Stock [Line Items]
Shares Reinvested	4,246	5,699
Dollars Reinvested	$ 136,454	$ 180,454
F-ITE Shares [Member]
Class of Stock [Line Items]
Shares Reinvested	718	899
Dollars Reinvested	$ 23,176	$ 28,661
F-JTE Shares [Member]
Class of Stock [Line Items]
Shares Reinvested	7,062	9,258
Dollars Reinvested	$ 227,303	$ 293,926
STE Shares [Member]
Class of Stock [Line Items]
Shares Reinvested
Dollars Reinvested
DTE Shares [Member]
Class of Stock [Line Items]
Shares Reinvested
Dollars Reinvested
ITE Shares [Member]
Class of Stock [Line Items]
Shares Reinvested
Dollars Reinvested
JTE Shares [Member]
Class of Stock [Line Items]
Shares Reinvested
Dollars Reinvested
ETE Shares [Member]
Class of Stock [Line Items]
Shares Reinvested	1	1
Dollars Reinvested	$ 27	$ 36