v3.26.1
Related Party Transactions (Additional Information) (Details) - USD ($)
 3 Months Ended 9 Months Ended
Oct. 31, 2025
Jun. 30, 2025
Jun. 30, 2026
Mar. 31, 2026
Related Party Transaction [Line Items]        
Investments in affiliated fund, at fair value     $ 186,519,761 $ 183,338,199
Foreign Currency Hedging Agreement [Member]        
Related Party Transaction [Line Items]        
Fund recognized for transaction related costs $ 12,500      
Macquarie Infrastructure Fund, L.P [Member]        
Related Party Transaction [Line Items]        
Accrued Performance Allocation Expense     275  
Percentage of management fee waived       1.00%
Management fee expense   $ 0 116  
Accrued and payable     219,304 $ 227,617
Sale of stock, Consideration received on transaction     25,425,000  
Investments in affiliated fund, at fair value     94,055,758 11,073,581
Macquarie Infrastructure Fund, L.P [Member] | Common Class E [Member]        
Related Party Transaction [Line Items]        
Sale of stock, Consideration received on transaction     25,000,000  
Macquarie Infrastructure Fund, L.P [Member] | Common Class E [Member] | Units [Member]        
Related Party Transaction [Line Items]        
Sale of stock, Consideration received on transaction     39,500,000  
Macquarie Infrastructure Fund, L.P [Member] | Related Party [Member]        
Related Party Transaction [Line Items]        
Management fee expense       116
Adviser waived management fee       $ 116
Macquarie Infrastructure Fund, L.P [Member] | Investment Manager [Member]        
Related Party Transaction [Line Items]        
Percentage of management fee payable       1.25%
Macquarie Infrastructure Fund, L.P [Member] | Expense Limitation and Reimbursement Agreement [Member        
Related Party Transaction [Line Items]        
Percentage of total specified expenses in capital       0.70%
Macquarie Infrastructure Fund, L.P [Member] | Foreign Currency Hedging Agreement [Member]        
Related Party Transaction [Line Items]        
Foreign currency hedging agreement, annual rate 0.03%      
Foreign currency hedging agreement, Annual Fee $ 50,000      
MIF Cayman L.P [Member]        
Related Party Transaction [Line Items]        
Accrued and payable     15,891 $ 904,164
Investments in affiliated fund, at fair value     210,494,937 37,429,665
MIF Cayman L.P [Member] | Macquarie, MAM-Managed Entities [Member]        
Related Party Transaction [Line Items]        
Equity Method Investment Aggregate Cost     13,433,580  
Investments in affiliated fund, at fair value     172,716,294  
Aggregator distributed     30,877,179  
General Partner [Member]        
Related Party Transaction [Line Items]        
Accrued and payable     $ 308 $ 33
General Partner [Member] | Macquarie Infrastructure Fund, L.P [Member] | Performance Allocation [Member]        
Related Party Transaction [Line Items]        
Percentage of performance participation allocation of partners to total return     12.50%  
Percentage of annual hurdle amount     5.00%  
Percentage of high water mark catch up     100.00%