Shareholders' Equity - Schedule of Distributions (Details) - ISQ Open Infrastructure Company LLC Series II [Member] - $ / shares |
Jun. 30, 2026 |
Mar. 31, 2026 |
Jan. 30, 2026 |
|---|---|---|---|
| F-S Shares [Member] | |||
| Schedule of Distributions [Line Items] | |||
| Net Distribution Per Share | $ 0.3424 | $ 0.3399 | $ 0.11 |
| F-I Shares [Member] | |||
| Schedule of Distributions [Line Items] | |||
| Net Distribution Per Share | 0.3424 | 0.3399 | 0.11 |
| F-J Shares [Member] | |||
| Schedule of Distributions [Line Items] | |||
| Net Distribution Per Share | 0.3424 | 0.3399 | 0.11 |
| E Shares [Member] | |||
| Schedule of Distributions [Line Items] | |||
| Net Distribution Per Share | 0.3424 | $ 0.3399 | $ 0.11 |
| I Shares [Member] | |||
| Schedule of Distributions [Line Items] | |||
| Net Distribution Per Share | 0.3424 | ||
| J Shares [Member] | |||
| Schedule of Distributions [Line Items] | |||
| Net Distribution Per Share | $ 0.3424 |