v3.25.2
Financial Highlights - Schedule of Financial Highlights (Detail) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Dec. 31, 2024
Ratio/Supplemental Data:          
Net assets at end of period $ 1,336,096   $ 1,336,096   $ 940,296
Ratio to average net assets          
Total expense support 0 $ 1,275 $ 436 $ 2,742  
Total return     2.84%    
Apollo Infrastructure Company LLC Series One [Member]          
Ratio/Supplemental Data:          
Net assets at end of period 395,798   $ 395,798   247,549
Ratio to average net assets          
Total expense support 0 320 117 632  
Apollo Infrastructure Company LLC Series Two [Member]          
Ratio/Supplemental Data:          
Net assets at end of period 940,298   940,298   $ 692,747
Ratio to average net assets          
Total expense support $ 0 $ 955 $ 319 $ 2,110  
Class A-II Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 26.85 $ 25.27  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.41) (0.26)  
Net investment income     0.43 0.54  
Net realized and unrealized gain/(loss)     0.33 0.42  
Net increase (decrease) in net assets resulting from operations     0.76 0.96  
Net asset value at end of period $ 27.2 $ 25.97 $ 27.2 $ 25.97  
Shares outstanding at end of period 44,288,238 19,542,794 44,288,238 19,542,794  
Weighted average shares outstanding     39,472,038 15,310,843  
Ratio/Supplemental Data:          
Net assets at end of period $ 1,204,751 $ 507,534 $ 1,204,751 $ 507,534  
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     1.54% 2.59%  
Total expenses after expense support, special fee offset and after performance fees     1.31% 1.20%  
Total expenses after expense support, special fee offset and before performance fees     1.13% 0.93%  
Net investment income     2.64% 5.12%  
Total return       3.95%  
Class A-II Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 26.73 $ 25.25  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.41) (0.26)  
Net investment income     0.38 0.51  
Net realized and unrealized gain/(loss)     0.35 0.42  
Net increase (decrease) in net assets resulting from operations     0.73 0.93  
Net asset value at end of period $ 27.05 $ 25.92 $ 27.05 $ 25.92  
Shares outstanding at end of period 11,209,721 4,829,231 11,209,721 4,829,231  
Weighted average shares outstanding     10,030,755 3,489,825  
Ratio/Supplemental Data:          
Net assets at end of period $ 303,173 $ 125,154 $ 303,173 $ 125,154  
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     1.55% 2.56%  
Total expenses after expense support, special fee offset and after performance fees     1.32% 1.20%  
Total expenses after expense support, special fee offset and before performance fees     1.13% 0.92%  
Net investment income     3.04% 5.09%  
Total return     2.71% 3.81%  
Class A-II Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 26.88 $ 25.28  
Proceeds from issuance of shares     0 0  
Distributions declared     (0.41) (0.26)  
Net investment income     0.44 0.55  
Net realized and unrealized gain/(loss)     0.35 0.42  
Net increase (decrease) in net assets resulting from operations     0.79 0.97  
Net asset value at end of period $ 27.26 $ 25.99 $ 27.26 $ 25.99  
Shares outstanding at end of period 33,078,517 14,713,563 33,078,517 14,713,563  
Weighted average shares outstanding     29,441,283 11,821,018  
Ratio/Supplemental Data:          
Net assets at end of period $ 901,578 $ 382,380 $ 901,578 $ 382,380  
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     1.54% 2.59%  
Total expenses after expense support, special fee offset and after performance fees     1.31% 1.20%  
Total expenses after expense support, special fee offset and before performance fees     1.13% 0.94%  
Net investment income     3.44% 5.13%  
Total return     2.91% 3.99%  
Class F-I Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 26.61 $ 0  
Proceeds from issuance of shares     0 25.48  
Distributions declared     (0.41) (0.23)  
Net investment income     0.32 0.46  
Net realized and unrealized gain/(loss)     0.31 0.16  
Net increase (decrease) in net assets resulting from operations     0.63 0.62  
Net asset value at end of period $ 26.83 $ 25.87 $ 26.83 $ 25.87  
Shares outstanding at end of period 3,599,535 368,503 3,599,535 368,503  
Weighted average shares outstanding     2,731,356 211,603  
Ratio/Supplemental Data:          
Net assets at end of period $ 96,575 $ 9,531 $ 96,575 $ 9,531  
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     2.18% 2.82%  
Total expenses after expense support, special fee offset and after performance fees     1.90% 1.50%  
Total expenses after expense support, special fee offset and before performance fees     1.59% 0.96%  
Net investment income     1.92% 4.86%  
Total return     2.42% 3.58%  
Class F-I Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 26.55    
Proceeds from issuance of shares     0 $ 25.47  
Distributions declared     (0.41) (0.23)  
Net investment income     0.3 0.45  
Net realized and unrealized gain/(loss)     0.32 0.15  
Net increase (decrease) in net assets resulting from operations     0.62 0.6  
Net asset value at end of period $ 26.76 $ 25.84 $ 26.76 $ 25.84  
Shares outstanding at end of period 2,423,742 253,158 2,423,742 253,158  
Weighted average shares outstanding     1,612,394 143,773  
Ratio/Supplemental Data:          
Net assets at end of period $ 64,867 $ 6,542 $ 64,867 $ 6,542  
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     2.19% 2.81%  
Total expenses after expense support, special fee offset and after performance fees     1.93% 1.49%  
Total expenses after expense support, special fee offset and before performance fees     1.61% 0.95%  
Net investment income     2.57% 4.87%  
Total return     2.36% 3.53%  
Class F-I Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 26.69 $ 0  
Proceeds from issuance of shares     0 25.51  
Distributions declared     (0.41) (0.23)  
Net investment income     0.34 0.47  
Net realized and unrealized gain/(loss)     0.35 0.17  
Net increase (decrease) in net assets resulting from operations     0.69 0.64  
Net asset value at end of period $ 26.97 $ 25.92 $ 26.97 $ 25.92  
Shares outstanding at end of period 1,175,793 115,345 1,175,793 115,345  
Weighted average shares outstanding     1,118,963 67,830  
Ratio/Supplemental Data:          
Net assets at end of period $ 31,708 $ 2,989 $ 31,708 $ 2,989  
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     2.17% 2.85%  
Total expenses after expense support, special fee offset and after performance fees     1.86% 1.50%  
Total expenses after expense support, special fee offset and before performance fees     1.56% 0.97%  
Net investment income     2.86% 4.85%  
Total return     2.57% 3.70%  
Class E Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 27 $ 0  
Proceeds from issuance of shares     0 25.78  
Distributions declared     (0.41) (0.16)  
Net investment income     0.53 0.1  
Net realized and unrealized gain/(loss)     0.35 0.27  
Net increase (decrease) in net assets resulting from operations     0.88 0.37  
Net asset value at end of period $ 27.47 $ 25.99 $ 27.47 $ 25.99  
Shares outstanding at end of period 50,165 9,502 50,165 9,502  
Weighted average shares outstanding     41,070 9,502  
Ratio/Supplemental Data:          
Net assets at end of period $ 1,379 $ 247 $ 1,379 $ 247  
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     0.85% 1.95%  
Total expenses after expense support, special fee offset and after performance fees     0.78% 0.80%  
Total expenses after expense support, special fee offset and before performance fees     0.78% 0.80%  
Net investment income     3.21% 6.01%  
Total return     3.22% 1.42%  
Class E Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 26.88    
Proceeds from issuance of shares     0 $ 25.73  
Distributions declared     (0.41) (0.16)  
Net investment income     0.48 0.1  
Net realized and unrealized gain/(loss)     0.34 0.27  
Net increase (decrease) in net assets resulting from operations     0.82 0.37  
Net asset value at end of period $ 27.29 $ 25.94 $ 27.29 $ 25.94  
Shares outstanding at end of period 8,262 2,915 8,262 2,915  
Weighted average shares outstanding     8,232 2,915  
Ratio/Supplemental Data:          
Net assets at end of period $ 225 $ 76 $ 225 $ 76  
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     0.87% 1.95%  
Total expenses after expense support, special fee offset and after performance fees     0.79% 0.80%  
Total expenses after expense support, special fee offset and before performance fees     0.79% 0.80%  
Net investment income     3.51% 6.05%  
Total return     3.07% 1.44%  
Class E Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 27.03 $ 0  
Proceeds from issuance of shares     0 25.81  
Distributions declared     (0.41) (0.16)  
Net investment income     0.55 0.1  
Net realized and unrealized gain/(loss)     0.33 0.26  
Net increase (decrease) in net assets resulting from operations     0.88 0.36  
Net asset value at end of period $ 27.5 $ 26.01 $ 27.5 $ 26.01  
Shares outstanding at end of period 41,902 6,587 41,902 6,587  
Weighted average shares outstanding     32,838 6,587  
Ratio/Supplemental Data:          
Net assets at end of period $ 1,154 $ 171 $ 1,154 $ 171  
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     0.85% 1.95%  
Total expenses after expense support, special fee offset and after performance fees     0.78% 0.80%  
Total expenses after expense support, special fee offset and before performance fees     0.78% 0.80%  
Net investment income     4.00% 6.00%  
Total return     3.27% 1.42%  
Class I Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 0    
Proceeds from issuance of shares     26.79    
Distributions declared     (0.41)    
Net investment income     0.27    
Net realized and unrealized gain/(loss)     0.27    
Net increase (decrease) in net assets resulting from operations     0.54    
Net asset value at end of period $ 26.92   $ 26.92    
Shares outstanding at end of period 1,240,092   1,240,092    
Weighted average shares outstanding     571,303    
Ratio/Supplemental Data:          
Net assets at end of period $ 33,384   $ 33,384    
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     2.54%    
Total expenses after expense support, special fee offset and after performance fees     2.34%    
Total expenses after expense support, special fee offset and before performance fees     1.84%    
Net investment income     1.36%    
Total return     2.22%    
Class I Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 0    
Proceeds from issuance of shares     26.71    
Distributions declared     (0.41)    
Net investment income     0.26    
Net realized and unrealized gain/(loss)     0.32    
Net increase (decrease) in net assets resulting from operations     0.58    
Net asset value at end of period $ 26.88   $ 26.88    
Shares outstanding at end of period 1,024,151   1,024,151    
Weighted average shares outstanding     473,732    
Ratio/Supplemental Data:          
Net assets at end of period $ 27,529   $ 27,529    
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     2.55%    
Total expenses after expense support, special fee offset and after performance fees     2.34%    
Total expenses after expense support, special fee offset and before performance fees     1.84%    
Net investment income     2.42%    
Total return     2.18%    
Class I Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 0    
Proceeds from issuance of shares     26.88    
Distributions declared     (0.41)    
Net investment income     0.32    
Net realized and unrealized gain/(loss)     0.32    
Net increase (decrease) in net assets resulting from operations     0.64    
Net asset value at end of period $ 27.11   $ 27.11    
Shares outstanding at end of period 215,940   215,940    
Weighted average shares outstanding     97,571    
Ratio/Supplemental Data:          
Net assets at end of period $ 5,855   $ 5,855    
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     2.50%    
Total expenses after expense support, special fee offset and after performance fees     2.34%    
Total expenses after expense support, special fee offset and before performance fees     1.87%    
Net investment income     2.86%    
Total return     2.41%    
Class S Shares [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 0    
Proceeds from issuance of shares     26.79    
Distributions declared     (0.41)    
Net investment income     0.25    
Net realized and unrealized gain/(loss)     0.35    
Net increase (decrease) in net assets resulting from operations     0.6    
Net asset value at end of period $ 26.98   $ 26.98    
Shares outstanding at end of period 220   220    
Weighted average shares outstanding     220    
Ratio/Supplemental Data:          
Net assets at end of period $ 6   $ 6    
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     2.53%    
Total expenses after expense support, special fee offset and after performance fees     2.22%    
Total expenses after expense support, special fee offset and before performance fees     1.81%    
Net investment income     1.64%    
Total return     2.22%    
Class S Shares [Member] | Apollo Infrastructure Company LLC Series One [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 0    
Proceeds from issuance of shares     26.71    
Distributions declared     (0.41)    
Net investment income     0.22    
Net realized and unrealized gain/(loss)     0.35    
Net increase (decrease) in net assets resulting from operations     0.57    
Net asset value at end of period $ 26.87   $ 26.87    
Shares outstanding at end of period 110   110    
Weighted average shares outstanding     110    
Ratio/Supplemental Data:          
Net assets at end of period $ 3   $ 3    
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     2.54%    
Total expenses after expense support, special fee offset and after performance fees     2.23%    
Total expenses after expense support, special fee offset and before performance fees     1.82%    
Net investment income     2.08%    
Total return     2.15%    
Class S Shares [Member] | Apollo Infrastructure Company LLC Series Two [Member]          
Per Share Data:          
Net asset value at beginning of period     $ 0    
Proceeds from issuance of shares     26.88    
Distributions declared     (0.41)    
Net investment income     0.28    
Net realized and unrealized gain/(loss)     0.34    
Net increase (decrease) in net assets resulting from operations     0.62    
Net asset value at end of period $ 27.09   $ 27.09    
Shares outstanding at end of period 110   110    
Weighted average shares outstanding     110    
Ratio/Supplemental Data:          
Net assets at end of period $ 3   $ 3    
Ratio to average net assets          
Total expenses before expense support, special fee offset and after performance fees     2.53%    
Total expenses after expense support, special fee offset and after performance fees     2.21%    
Total expenses after expense support, special fee offset and before performance fees     1.81%    
Net investment income     2.48%    
Total return     2.34%