v3.26.1
Financial Highlights - Schedule of Financial Highlights (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Ratio/Supplemental Data:          
Net assets at end of period $ 2,008,970   $ 2,008,970   $ 1,735,846
Annualized Ratio to average net assets          
Total expense support (488) $ 0 (676) $ 436  
Apollo Infrastructure Company LLC Series One [Member]          
Ratio/Supplemental Data:          
Net assets at end of period 576,662   576,662   513,489
Annualized Ratio to average net assets          
Total expense support (141) 0 (197) 117  
Apollo Infrastructure Company LLC Series Two [Member]          
Ratio/Supplemental Data:          
Net assets at end of period 1,432,308   1,432,308   $ 1,222,357
Annualized Ratio to average net assets          
Total expense support $ (347) $ 0 $ (479) $ 319  
Class A-II Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 28.35 $ 26.85  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.43) (0.41)  
Net investment income     0.09 0.43  
Net realized and unrealized gain/(loss)     1.11 0.33  
Net increase (decrease) in net assets resulting from operations     1.2 0.76  
Net asset value at end of period $ 29.12 $ 27.2 $ 29.12 $ 27.2  
Shares outstanding at end of period 60,464,770 44,288,238 60,464,770 44,288,238  
Weighted average shares outstanding     57,831,999 39,472,038  
Ratio/Supplemental Data:          
Net assets at end of period $ 1,760,728 $ 1,204,751 $ 1,760,728 $ 1,204,751  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     1.50% 1.54%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     1.79% 1.31%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.24% 1.13%  
Net investment income     0.91% 2.64%  
Total return     4.26% 2.84%  
Class A-II Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 28.06 $ 26.73  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.43) (0.41)  
Net investment income     (0.02) 0.38  
Net realized and unrealized gain/(loss)     1.1 0.35  
Net increase (decrease) in net assets resulting from operations     1.08 0.73  
Net asset value at end of period $ 28.71 $ 27.05 $ 28.71 $ 27.05  
Shares outstanding at end of period 14,540,028 11,209,721 14,540,028 11,209,721  
Weighted average shares outstanding     14,253,607 10,030,755  
Ratio/Supplemental Data:          
Net assets at end of period $ 417,466 $ 303,173 $ 417,466 $ 303,173  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     1.82% 1.55%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     1.51% 1.32%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.25% 1.13%  
Net investment income     0.10% 3.04%  
Total return     3.85% 2.71%  
Class A-II Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 28.44 $ 26.88  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.44) (0.41)  
Net investment income     0.13 0.44  
Net realized and unrealized gain/(loss)     1.12 0.35  
Net increase (decrease) in net assets resulting from operations     1.25 0.79  
Net asset value at end of period $ 29.25 $ 27.26 $ 29.25 $ 27.26  
Shares outstanding at end of period 45,924,742 33,078,517 45,924,742 33,078,517  
Weighted average shares outstanding     43,578,392 29,441,283  
Ratio/Supplemental Data:          
Net assets at end of period $ 1,343,262 $ 901,578 $ 1,343,262 $ 901,578  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     1.78% 1.54%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     1.50% 1.31%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.24% 1.13%  
Net investment income     1.18% 3.44%  
Total return     4.38% 2.91%  
Class F-I Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 27.82 $ 26.61  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.42) (0.41)  
Net investment income     0.04 0.32  
Net realized and unrealized gain/(loss)     1.08 0.31  
Net increase (decrease) in net assets resulting from operations     1.04 0.63  
Net asset value at end of period $ 28.44 $ 26.83 $ 28.44 $ 26.83  
Shares outstanding at end of period 5,361,971 3,599,535 5,361,971 3,599,535  
Weighted average shares outstanding     5,357,943 2,731,356  
Ratio/Supplemental Data:          
Net assets at end of period $ 152,478 $ 96,575 $ 152,478 $ 96,575  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     1.98% 2.18%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     2.36% 1.90%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.53% 1.59%  
Net investment income     0.14% 1.92%  
Total return     3.76% 2.42%  
Class F-I Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 27.65 $ 26.55  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.42) (0.41)  
Net investment income     (0.11) 0.3  
Net realized and unrealized gain/(loss)     1.07 0.32  
Net increase (decrease) in net assets resulting from operations     0.96 0.62  
Net asset value at end of period $ 28.19 $ 26.76 $ 28.19 $ 26.76  
Shares outstanding at end of period 2,871,506 2,423,742 2,871,506 2,423,742  
Weighted average shares outstanding     2,878,475 1,612,394  
Ratio/Supplemental Data:          
Net assets at end of period $ 80,954 $ 64,867 $ 80,954 $ 64,867  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     2.38% 2.19%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     1.99% 1.93%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.54% 1.61%  
Net investment income     0.37% 2.57%  
Total return     3.51% 2.36%  
Class F-I Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 28.02 $ 26.69  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.43) (0.41)  
Net investment income     0.04 0.34  
Net realized and unrealized gain/(loss)     1.09 0.35  
Net increase (decrease) in net assets resulting from operations     1.13 0.69  
Net asset value at end of period $ 28.72 $ 26.97 $ 28.72 $ 26.97  
Shares outstanding at end of period 2,490,465 1,175,793 2,490,465 1,175,793  
Weighted average shares outstanding     2,479,468 1,118,963  
Ratio/Supplemental Data:          
Net assets at end of period $ 71,524 $ 31,708 $ 71,524 $ 31,708  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     2.33% 2.17%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     1.97% 1.86%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.52% 1.56%  
Net investment income     0.72% 2.86%  
Total return     4.04% 2.57%  
Class E Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 28.77 $ 27  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.44) (0.41)  
Net investment income     0.13 0.53  
Net realized and unrealized gain/(loss)     0.97 0.35  
Net increase (decrease) in net assets resulting from operations     1.1 0.88  
Net asset value at end of period $ 29.43 $ 27.47 $ 29.43 $ 27.47  
Shares outstanding at end of period 152,264 50,165 152,264 50,165  
Weighted average shares outstanding     107,803 41,070  
Ratio/Supplemental Data:          
Net assets at end of period $ 4,481 $ 1,379 $ 4,481 $ 1,379  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     1.11% 0.85%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     1.14% 0.78%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.11% 0.78%  
Net investment income     0.92% 3.21%  
Total return     4.51% 3.22%  
Class E Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 28.44 $ 26.88  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.43) (0.41)  
Net investment income     0.02 0.48  
Net realized and unrealized gain/(loss)     1.17 0.34  
Net increase (decrease) in net assets resulting from operations     1.19 0.82  
Net asset value at end of period $ 29.2 $ 27.29 $ 29.2 $ 27.29  
Shares outstanding at end of period 88,087 8,262 88,087 8,262  
Weighted average shares outstanding     50,099 8,232  
Ratio/Supplemental Data:          
Net assets at end of period $ 2,572 $ 225 $ 2,572 $ 225  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     1.10% 0.87%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     1.15% 0.79%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.15% 0.79%  
Net investment income     0.14% 3.51%  
Total return     4.19% 3.07%  
Class E Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 28.83 $ 27.03  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.44) (0.41)  
Net investment income     0.23 0.55  
Net realized and unrealized gain/(loss)     1.13 0.33  
Net increase (decrease) in net assets resulting from operations     1.36 0.88  
Net asset value at end of period $ 29.75 $ 27.5 $ 29.75 $ 27.5  
Shares outstanding at end of period 64,177 41,902 64,177 41,902  
Weighted average shares outstanding     57,704 32,838  
Ratio/Supplemental Data:          
Net assets at end of period $ 1,909 $ 1,154 $ 1,909 $ 1,154  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     1.17% 0.85%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     1.08% 0.78%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.08% 0.78%  
Net investment income     1.59% 4.00%  
Total return     4.72% 3.27%  
Class I Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 27.74 $ 0  
Proceeds from issuance of shares     0 26.79  
Distributions declared     (0.42) (0.41)  
Net investment income     (0.18) 0.27  
Net realized and unrealized gain/(loss)     1.1 0.27  
Net increase (decrease) in net assets resulting from operations     0.92 0.54  
Net asset value at end of period $ 28.24 $ 26.92 $ 28.24 $ 26.92  
Shares outstanding at end of period 3,231,955 1,240,092 3,231,955 1,240,092  
Weighted average shares outstanding     2,860,360 571,303  
Ratio/Supplemental Data:          
Net assets at end of period $ 91,275 $ 33,384 $ 91,275 $ 33,384  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     2.40% 2.54%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     2.77% 2.34%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.78% 1.84%  
Net investment income     0.65% 1.36%  
Total return     3.33% 2.22%  
Class I Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 27.67 $ 0  
Proceeds from issuance of shares     0 26.71  
Distributions declared     (0.42) (0.41)  
Net investment income     (0.2) 0.26  
Net realized and unrealized gain/(loss)     1.1 0.32  
Net increase (decrease) in net assets resulting from operations     0.9 0.58  
Net asset value at end of period $ 28.15 $ 26.88 $ 28.15 $ 26.88  
Shares outstanding at end of period 2,688,258 1,024,151 2,688,258 1,024,151  
Weighted average shares outstanding     2,395,446 473,732  
Ratio/Supplemental Data:          
Net assets at end of period $ 75,666 $ 27,529 $ 75,666 $ 27,529  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     2.78% 2.55%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     2.40% 2.34%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.78% 1.84%  
Net investment income     0.83% 2.42%  
Total return     3.24% 2.18%  
Class I Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 28.08 $ 0  
Proceeds from issuance of shares     0 26.88  
Distributions declared     (0.43) (0.41)  
Net investment income     (0.05) 0.32  
Net realized and unrealized gain/(loss)     1.11 0.32  
Net increase (decrease) in net assets resulting from operations     1.06 0.64  
Net asset value at end of period $ 28.71 $ 27.11 $ 28.71 $ 27.11  
Shares outstanding at end of period 543,697 215,940 543,697 215,940  
Weighted average shares outstanding     464,914 97,571  
Ratio/Supplemental Data:          
Net assets at end of period $ 15,609 $ 5,855 $ 15,609 $ 5,855  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     2.74% 2.50%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     2.38% 2.34%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.77% 1.87%  
Net investment income     0.27% 2.86%  
Total return     3.77% 2.41%  
Class S Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 27.86 $ 0  
Proceeds from issuance of shares     0 26.79  
Distributions declared     (0.42) (0.41)  
Net investment income     0.11 0.25  
Net realized and unrealized gain/(loss)     1.07 0.35  
Net increase (decrease) in net assets resulting from operations     0.96 0.6  
Net asset value at end of period $ 28.4 $ 26.98 $ 28.4 $ 26.98  
Shares outstanding at end of period 220 220 220 220  
Weighted average shares outstanding     220 220  
Ratio/Supplemental Data:          
Net assets at end of period $ 6 $ 6 $ 6 $ 6  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     2.34% 2.53%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     2.72% 2.22%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.73% 1.81%  
Net investment income     0.18% 1.64%  
Total return     3.48% 2.22%  
Class S Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 27.66 $ 0  
Proceeds from issuance of shares     0 26.71  
Distributions declared     (0.42) (0.41)  
Net investment income     (0.19) 0.22  
Net realized and unrealized gain/(loss)     1.07 0.35  
Net increase (decrease) in net assets resulting from operations     0.88 0.57  
Net asset value at end of period $ 28.12 $ 26.87 $ 28.12 $ 26.87  
Shares outstanding at end of period 110 110 110 110  
Weighted average shares outstanding     110 110  
Ratio/Supplemental Data:          
Net assets at end of period $ 3 $ 3 $ 3 $ 3  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     2.74% 2.54%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     2.35% 2.23%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.74% 1.82%  
Net investment income     0.73% 2.08%  
Total return     3.21% 2.15%  
Class S Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 28.06 $ 0  
Proceeds from issuance of shares     0 26.88  
Distributions declared     (0.43) (0.41)  
Net investment income     (0.03) 0.28  
Net realized and unrealized gain/(loss)     1.07 0.34  
Net increase (decrease) in net assets resulting from operations     1.04 0.62  
Net asset value at end of period $ 28.67 $ 27.09 $ 28.67 $ 27.09  
Shares outstanding at end of period 110 110 110 110  
Weighted average shares outstanding     110 110  
Ratio/Supplemental Data:          
Net assets at end of period $ 3 $ 3 $ 3 $ 3  
Annualized Ratio to average net assets          
Total expenses before expense support/reimbursement, special fee offset and after performance fees     2.69% 2.53%  
Total expenses after expense support/reimbursement, special fee offset and after performance fees     2.33% 2.21%  
Total expenses after expense support/reimbursement, special fee offset and before performance fees     1.73% 1.81%  
Net investment income     0.36% 2.48%  
Total return     3.74% 2.34%