v3.25.2
Fair Value Measurement and Disclosures - Schedule of Changes in the Fair Value of Our Level III Investment (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Mar. 31, 2025
Jun. 30, 2024
Mar. 31, 2024
Jun. 30, 2025
Jun. 30, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]            
Net change in unrealized appreciation/(depreciation) from investments $ (1,578)   $ 4,990   $ 4,751 $ 7,999
Apollo Infrastructure Company LLC Series One [Member]            
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]            
Net change in unrealized appreciation/(depreciation) from investments (518)   1,276   1,281 1,946
Apollo Infrastructure Company LLC Series Two [Member]            
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]            
Net change in unrealized appreciation/(depreciation) from investments (1,060)   3,714   3,470 6,053
Partnership Investment Vehicle [Member]            
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]            
Beginning Balance 620,518 $ 415,085 190,390 $ 115,417 415,085 115,417
Purchases, including capitalized PIK and rebalancing transaction 64,891 203,585 109,794 73,362    
Net change in unrealized appreciation/(depreciation) from investments (7,521) 2,096 5,461 1,611    
Sales and syndication (129,764) (248)        
Transfers out of Level III 0 0 0 0    
Transfers into Level III 0 0 0 0    
Ending Balance 548,124 620,518 305,645 190,390 548,124 305,645
Partnership Investment Vehicle [Member] | Apollo Infrastructure Company LLC Series One [Member]            
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]            
Beginning Balance 177,770 109,471 37,610 20,442 109,471 20,442
Purchases, including capitalized PIK and rebalancing transaction 24,525 67,779 27,581 16,799    
Net change in unrealized appreciation/(depreciation) from investments (1,657) 591 1,391 369    
Sales and syndication (37,874) (71)        
Transfers out of Level III 0 0 0 0    
Transfers into Level III 0 0 0 0    
Ending Balance 162,764 177,770 66,582 37,610 162,764 66,582
Partnership Investment Vehicle [Member] | Apollo Infrastructure Company LLC Series Two [Member]            
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]            
Beginning Balance 442,748 305,614 152,780 94,975 305,614 94,975
Purchases, including capitalized PIK and rebalancing transaction 40,366 135,806 82,213 56,563    
Net change in unrealized appreciation/(depreciation) from investments (5,864) 1,505 4,070 1,242    
Sales and syndication (91,890) (177)        
Transfers out of Level III 0 0 0 0    
Transfers into Level III 0 0 0 0    
Ending Balance $ 385,360 $ 442,748 $ 239,063 $ 152,780 $ 385,360 $ 239,063