Shareholders' Equity - Schedule of Summary of the Shares Issued and Redeemed During the Period (Details) - ISQ Open Infrastructure Company LLC Series I [Member]	9 Months Ended
	Dec. 31, 2025 shares
F-STE Shares [Member]
Schedule of Summary of the Shares Issued and Redeemed During the Period [Line Items]
Shares Outstanding at Formation
Shares Issued During the Period	107,654
Shares Redeemed During the Period
Shares Reinvested under DRIP During the Period
Transfers In
Transfers Out
Shares Outstanding	107,654
F-DTE Shares [Member]
Schedule of Summary of the Shares Issued and Redeemed During the Period [Line Items]
Shares Outstanding at Formation
Shares Issued During the Period	400,110
Shares Redeemed During the Period
Shares Reinvested under DRIP During the Period
Transfers In
Transfers Out
Shares Outstanding	400,110
F-ITE Shares [Member]
Schedule of Summary of the Shares Issued and Redeemed During the Period [Line Items]
Shares Outstanding at Formation
Shares Issued During the Period	41,020
Shares Redeemed During the Period
Shares Reinvested under DRIP During the Period
Transfers In
Transfers Out
Shares Outstanding	41,020
F-JTE Shares [Member]
Schedule of Summary of the Shares Issued and Redeemed During the Period [Line Items]
Shares Outstanding at Formation
Shares Issued During the Period	578,956
Shares Redeemed During the Period
Shares Reinvested under DRIP During the Period
Transfers In
Transfers Out
Shares Outstanding	578,956
STE Shares [Member]
Schedule of Summary of the Shares Issued and Redeemed During the Period [Line Items]
Shares Outstanding at Formation
Shares Issued During the Period	110
Shares Redeemed During the Period
Shares Reinvested under DRIP During the Period
Transfers In
Transfers Out
Shares Outstanding	110
DTE Shares [Member]
Schedule of Summary of the Shares Issued and Redeemed During the Period [Line Items]
Shares Outstanding at Formation
Shares Issued During the Period	110
Shares Redeemed During the Period
Shares Reinvested under DRIP During the Period
Transfers In
Transfers Out
Shares Outstanding	110
ITE Shares [Member]
Schedule of Summary of the Shares Issued and Redeemed During the Period [Line Items]
Shares Outstanding at Formation
Shares Issued During the Period	110
Shares Redeemed During the Period
Shares Reinvested under DRIP During the Period
Transfers In
Transfers Out
Shares Outstanding	110
JTE Shares [Member]
Schedule of Summary of the Shares Issued and Redeemed During the Period [Line Items]
Shares Outstanding at Formation
Shares Issued During the Period	110
Shares Redeemed During the Period
Shares Reinvested under DRIP During the Period
Transfers In
Transfers Out
Shares Outstanding	110
ETE Shares [Member]
Schedule of Summary of the Shares Issued and Redeemed During the Period [Line Items]
Shares Outstanding at Formation
Shares Issued During the Period	80
Shares Redeemed During the Period
Shares Reinvested under DRIP During the Period
Transfers In
Transfers Out
Shares Outstanding	80