v3.26.1
Fair Value Measurement and Disclosures - Schedule of Quantitative Measure Used To Determine the Fair Values of the Level III Investments (Detail)
$ in Thousands
Jun. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure $ 2,101,797 $ 1,575,363
Partnership Investment Vehicle [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 1,641,962 [1] 1,121,808 [2]
Loan [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 459,835 453,555
Apollo Infrastructure Company LLC Series One [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 608,376 468,403
Apollo Infrastructure Company LLC Series One [Member] | Partnership Investment Vehicle [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 475,273 333,548
Apollo Infrastructure Company LLC Series One [Member] | Loan [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 133,103 134,855 [3]
Apollo Infrastructure Company LLC Series Two [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 1,493,421 1,106,960
Apollo Infrastructure Company LLC Series Two [Member] | Partnership Investment Vehicle [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 1,166,689 788,260
Apollo Infrastructure Company LLC Series Two [Member] | Loan [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 326,732 318,700
Level III [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 1,347,101 912,401
Level III [Member] | Partnership Investment Vehicle [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 887,266 458,846
Level III [Member] | Loan [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure $ 459,835 $ 453,555
Level III [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Partnership Investment Vehicle [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 19.7 15.14
Level III [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Partnership Investment Vehicle [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 9.4 7.77
Level III [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Loan [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 18.1 18.1
Level III [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Loan [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 6.2 5.68
Level III [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Securitization Rate [Member] | Partnership Investment Vehicle [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 4  
Level III [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Terminal Multiple [Member] | Partnership Investment Vehicle [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 14.3 14.3
Level III [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Terminal Multiple [Member] | Partnership Investment Vehicle [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 8.5 8.5
Level III [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Exit Cap Rate [Member] | Partnership Investment Vehicle [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 7.5 7.5
Level III [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Exit Cap Rate [Member] | Partnership Investment Vehicle [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 6.5 6.5
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure $ 389,926 $ 271,283
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Partnership Investment Vehicle [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 256,823 136,428
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Loan [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure $ 133,103 $ 134,855 [3]
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Partnership Investment Vehicle [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 19.7 15.14
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Partnership Investment Vehicle [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 9.4 7.77
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Loan [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 18.1 18.1
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Loan [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 6.2 5.68
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Securitization Rate [Member] | Partnership Investment Vehicle [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 4  
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Terminal Multiple [Member] | Partnership Investment Vehicle [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 14.3 14.3
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Terminal Multiple [Member] | Partnership Investment Vehicle [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 8.5 8.5
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Exit Cap Rate [Member] | Partnership Investment Vehicle [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 7.5 7.5
Level III [Member] | Apollo Infrastructure Company LLC Series One [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Exit Cap Rate [Member] | Partnership Investment Vehicle [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 6.5 6.5
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure $ 957,175 $ 641,118
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Partnership Investment Vehicle [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure 630,443 322,418
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Loan [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Investments, Fair Value Disclosure $ 326,732 $ 318,700
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Partnership Investment Vehicle [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 19.7 15.14
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Partnership Investment Vehicle [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 9.4 7.77
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Loan [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 18.1 18.1
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input, Discount Rate [Member] | Loan [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 6.2 5.68
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Securitization Rate [Member] | Partnership Investment Vehicle [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 4  
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Terminal Multiple [Member] | Partnership Investment Vehicle [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 14.3 14.3
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Terminal Multiple [Member] | Partnership Investment Vehicle [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 8.5 8.5
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Exit Cap Rate [Member] | Partnership Investment Vehicle [Member] | Maximum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 7.5 7.5
Level III [Member] | Apollo Infrastructure Company LLC Series Two [Member] | Valuation Technique, Discounted Cash Flow [Member] | Measurement Input Exit Cap Rate [Member] | Partnership Investment Vehicle [Member] | Minimum [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Alternative Investment, Measurement Input 6.5 6.5
[1] Partnership investment vehicle includes investments in both limited partnerships and limited liability companies.
[2] Partnership investment vehicle includes investments in both limited partnerships and limited liability companies.
[3] The fair value amounts presented in this table are intended to permit reconciliation of the fair value hierarchy to the amounts presented in the consolidated statement of assets and liabilities.