v3.26.1
Condensed Consolidated Schedules of Investments - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Schedule of Investments [Line Items]    
Fair Value $ 2,101,797 $ 1,575,363
Fair Value as a Percentage of Net Assets 104.70% [1] 90.70% [2]
Derivative Assets, Fair Value [3] $ 4,412 $ 1,060
Derivative Liabilities, Fair Value 559 1,189 [3]
Series I Partnership Investment Vehicle [Member]    
Schedule of Investments [Line Items]    
Fair Value $ 475,273 [4] $ 333,548 [5]
Fair Value as a Percentage of Net Assets 82.40% [1],[4] 65.00% [2],[5]
Series II Partnership Investment Vehicle [Member]    
Schedule of Investments [Line Items]    
Fair Value $ 1,166,689 [4] $ 788,260 [5]
Fair Value as a Percentage of Net Assets 81.60% [1],[4] 64.50% [2],[5]
Partnership Investment Vehicle [Member]    
Schedule of Investments [Line Items]    
Fair Value $ 1,641,962 [4] $ 1,121,808 [5]
Fair Value as a Percentage of Net Assets 81.90% [1],[4] 64.60% [2],[5]
Series I Investment Loan [Member]    
Schedule of Investments [Line Items]    
Fair Value $ 133,103 $ 134,855
Fair Value as a Percentage of Net Assets 23.10% [1] 26.30% [2]
Series I Investment [Member]    
Schedule of Investments [Line Items]    
Fair Value $ 608,376 $ 468,403
Fair Value as a Percentage of Net Assets 105.50% [1] 91.30% [2]
Series I Investments Derivative Assets and Derivative Liabilities [Member]    
Schedule of Investments [Line Items]    
Investments and Derivative Assets/(Liabilities), Fair Value $ 609,492 $ 468,384
Investments and Derivative Assets/(Liabilities), Fair Value as a Percentage of Net Assets 105.70% [1] 91.20% [2]
Series I Derivative Liabilities [Member]    
Schedule of Investments [Line Items]    
Derivative Liabilities, Fair Value $ 168 [6] $ 332 [7]
Derivative Liabilities, Fair Value as a Percentage of Net Assets 0.00% [6] (0.10%) [2],[7]
Series II Derivative Liabilities [Member]    
Schedule of Investments [Line Items]    
Derivative Liabilities, Fair Value $ (391) [6] $ 857 [7]
Derivative Liabilities, Fair Value as a Percentage of Net Assets 0.00% [6] (0.10%) [2],[7]
Series II Investment And Derivative Assets Liabilities [Member]    
Schedule of Investments [Line Items]    
Investments and Derivative Assets/(Liabilities), Fair Value $ 1,496,158 $ 1,106,850
Investments and Derivative Assets/(Liabilities), Fair Value as a Percentage of Net Assets 104.60% [1] 90.60% [2]
Derivative Assets [Member]    
Schedule of Investments [Line Items]    
Derivative Assets, Fair Value $ 4,412 [6] $ 1,060 [7]
Derivative Assets, Fair Value as a Percentage of Net Assets 0.20% [1],[6] 0.10% [2],[7]
Derivative Liabilities [Member]    
Schedule of Investments [Line Items]    
Derivative Liabilities, Fair Value $ (559) [6] $ 1,189 [7]
Derivative Liabilities, Fair Value as a Percentage of Net Assets 0.00% [1],[6] (0.10%) [2],[7]
Series I Derivative Assets [Member]    
Schedule of Investments [Line Items]    
Derivative Assets, Fair Value $ 1,284 [6] $ 313 [7]
Derivative Assets, Fair Value as a Percentage of Net Assets 0.20% [6] 0.10% [2],[7]
Series II Derivative Assets [Member]    
Schedule of Investments [Line Items]    
Derivative Assets, Fair Value $ 3,128 [6] $ 747 [7]
Derivative Assets, Fair Value as a Percentage of Net Assets 0.20% [6] 0.10% [2],[7]
Series II Investment Loan [Member]    
Schedule of Investments [Line Items]    
Fair Value $ 326,732 $ 318,700
Fair Value as a Percentage of Net Assets 22.80% [1] 26.10% [2]
Series II Investment [Member]    
Schedule of Investments [Line Items]    
Fair Value $ 1,493,421 $ 1,106,960
Fair Value as a Percentage of Net Assets 104.40% [1] 90.60% [2]
Investment Loan [Member]    
Schedule of Investments [Line Items]    
Fair Value $ 459,835 $ 453,555
Fair Value as a Percentage of Net Assets 22.80% [1] 26.10% [2]
Investments, Derivative Assets and Derivative Liabilities [Member]    
Schedule of Investments [Line Items]    
Investments and Derivative Assets/(Liabilities), Fair Value $ 2,105,650 $ 1,575,234
Investments and Derivative Assets/(Liabilities), Fair Value as a Percentage of Net Assets 104.90% [1] 90.70% [2]
Investment, Identifier [Axis]: Series I | Derivative Assets |Foreign Currency Forward Contracts    
Schedule of Investments [Line Items]    
Derivative Assets, Fair Value $ 1,284 [6] $ 313 [7]
Derivative Assets, Fair Value as a Percentage of Net Assets 0.20% [6] 0.10% [2],[7]
Investment, Identifier [Axis]: Series I | Derivative Liabilities | Foreign Currency Forward Contracts    
Schedule of Investments [Line Items]    
Derivative Liabilities, Fair Value $ 168 [6] $ 332 [7]
Derivative Liabilities, Fair Value as a Percentage of Net Assets 0.00% [6] (0.10%) [2],[7]
Investment, Identifier [Axis]: Series I | Investments in Loans | Other Infrastructure Assets | Europe | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital
Fair Value $ 6,804 $ 7,172
Fair Value as a Percentage of Net Assets 1.20% [1] 1.40% [2]
Investment, Identifier [Axis]: Series I | Investments in Loans | Other Infrastructure Assets | United States | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital [8]
Fair Value $ 59,542 [9] $ 49,102 [8]
Fair Value as a Percentage of Net Assets 10.30% [1],[9] 9.60% [2],[8]
Investment, Identifier [Axis]: Series I | Investments in Loans | Other Infrastructure Assets | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities Power & Utilities [8]
Fair Value $ 29,203 [9] $ 56,406 [8]
Fair Value as a Percentage of Net Assets 5.10% [1],[9] 11.00% [2],[8]
Investment, Identifier [Axis]: Series I | Investments in Loans | Other Infrastructure Assets | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation
Fair Value $ 21,187 $ 14,273
Fair Value as a Percentage of Net Assets 3.70% [1] 2.80% [2]
Investment, Identifier [Axis]: Series I | Investments in Loans | Other Infrastructure Assets | Various | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital
Fair Value $ 9,304 $ 1,082
Fair Value as a Percentage of Net Assets 1.60% [1] 0.20% [2]
Investment, Identifier [Axis]: Series I | Investments in Loans | Other Infrastructure Assets | Various | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation
Fair Value $ 7,063 $ 6,820
Fair Value as a Percentage of Net Assets 1.20% [1] 1.30% [2]
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | AIC 3-Z Subsidiary, LLC | United States | Various    
Schedule of Investments [Line Items]    
Industry Various Various [5],[10]
Fair Value $ 47,575 [4],[11] $ 43,483 [5],[10]
Fair Value as a Percentage of Net Assets 8.30% [1],[4],[11] 8.50% [2],[5],[10]
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | AP Aegis Aggregator, SCSp | Europe | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital [5],[12]
Fair Value $ 41,358 [4],[13] $ 39,802 [5],[12]
Fair Value as a Percentage of Net Assets 7.20% [1],[4],[13] 7.80% [2],[5],[12]
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | AP Ballast, L.P. | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation [5],[14]
Fair Value $ 29,314 [4],[15] $ 29,363 [5],[14]
Fair Value as a Percentage of Net Assets 5.10% [1],[4],[15] 5.70% [2],[5],[14]
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | AP Hercules Aggregator, SCSp | Norway | Transportation    
Schedule of Investments [Line Items]    
Industry [5],[16]   Transportation
Fair Value [5],[16]   $ 26,814
Fair Value as a Percentage of Net Assets [2],[5],[16]   5.20%
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | AP Jaguar Holdings, LLC | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities  
Fair Value [4],[17] $ 46,237  
Fair Value as a Percentage of Net Assets [1],[4],[17] 8.00%  
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | AP Pegasus Holdings , SCSP | Canada | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities  
Fair Value [4],[18] $ 49,552  
Fair Value as a Percentage of Net Assets [1],[4],[18] 8.60%  
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | Novus Holdings Parent, L.P. | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation [5]
Fair Value $ 41,768 [4] $ 38,435 [5]
Fair Value as a Percentage of Net Assets 7.20% [1],[4] 7.50% [2],[5]
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | Canada | Social    
Schedule of Investments [Line Items]    
Industry Social Social [5]
Fair Value $ 17,858 [4] $ 17,507 [5]
Fair Value as a Percentage of Net Assets 3.10% [1],[4] 3.40% [2],[5]
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | Norway | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation  
Fair Value [4] $ 27,169  
Fair Value as a Percentage of Net Assets [1],[4] 4.70%  
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital [5]
Fair Value $ 21,855 [4] $ 8,767 [5]
Fair Value as a Percentage of Net Assets 3.80% [1],[4] 1.70% [2],[5]
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities Power & Utilities [5],[8]
Fair Value $ 72,074 [4],[9] $ 69,390 [5],[8]
Fair Value as a Percentage of Net Assets 12.50% [1],[4],[9] 13.50% [2],[5],[8]
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Social    
Schedule of Investments [Line Items]    
Industry Social  
Fair Value [4] $ 22,032  
Fair Value as a Percentage of Net Assets [1],[4] 3.80%  
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation [5],[8]
Fair Value $ 26,736 [4] $ 28,132 [5],[8]
Fair Value as a Percentage of Net Assets 4.60% [1],[4] 5.50% [2],[5],[8]
Investment, Identifier [Axis]: Series I | Investments in Partnership Investment Vehicle | Phoebe JV Energy, LLC | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities Power & Utilities [5]
Principal Amount or Number of Shares 19,526 [4] 20,057 [5]
Fair Value $ 31,745 [4] $ 31,855 [5]
Fair Value as a Percentage of Net Assets 5.50% [1],[4] 6.20% [2],[5]
Investment, Identifier [Axis]: Series II | Derivative Assets |Foreign Currency Forward Contracts    
Schedule of Investments [Line Items]    
Derivative Assets, Fair Value $ 3,128 [6] $ 747 [7]
Derivative Assets, Fair Value as a Percentage of Net Assets 0.20% [6] 0.10% [2],[7]
Investment, Identifier [Axis]: Series II | Derivative Liabilities | Foreign Currency Forward Contracts    
Schedule of Investments [Line Items]    
Derivative Liabilities, Fair Value $ (391) [6] $ 857 [7]
Derivative Liabilities, Fair Value as a Percentage of Net Assets 0.00% [6] (0.10%) [2],[7]
Investment, Identifier [Axis]: Series II | Investments in Loans | Other Infrastructure Assets | Europe | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital
Fair Value $ 16,702 $ 16,950
Fair Value as a Percentage of Net Assets 1.20% [1] 1.40% [2]
Investment, Identifier [Axis]: Series II | Investments in Loans | Other Infrastructure Assets | United States | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital [8]
Fair Value $ 146,160 [9] $ 116,043 [8]
Fair Value as a Percentage of Net Assets 10.20% [1],[9] 9.50% [2],[8]
Investment, Identifier [Axis]: Series II | Investments in Loans | Other Infrastructure Assets | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities Power & Utilities [8]
Fair Value $ 71,686 [9] $ 133,305 [8]
Fair Value as a Percentage of Net Assets 5.00% [1],[9] 10.90% [2],[8]
Investment, Identifier [Axis]: Series II | Investments in Loans | Other Infrastructure Assets | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation
Fair Value $ 52,009 $ 33,730
Fair Value as a Percentage of Net Assets 3.60% [1] 2.80% [2]
Investment, Identifier [Axis]: Series II | Investments in Loans | Other Infrastructure Assets | Various | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital
Fair Value $ 22,838 $ 2,556
Fair Value as a Percentage of Net Assets 1.60% [1] 0.20% [2]
Investment, Identifier [Axis]: Series II | Investments in Loans | Other Infrastructure Assets | Various | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation
Fair Value $ 17,337 $ 16,116
Fair Value as a Percentage of Net Assets 1.20% [1] 1.30% [2]
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | AIC 3-Z Subsidiary, LLC | United States | Various    
Schedule of Investments [Line Items]    
Industry Various Various [5],[10]
Fair Value $ 116,785 [4],[11] $ 102,764 [5],[10]
Fair Value as a Percentage of Net Assets 8.20% [1],[4],[11] 8.40% [2],[5],[10]
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | AP Aegis Aggregator, SCSp | Europe | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital [5],[12]
Fair Value $ 101,524 [4],[13] $ 94,061 [5],[12]
Fair Value as a Percentage of Net Assets 7.10% [1],[4],[13] 7.70% [2],[5],[12]
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | AP Ballast, L.P. | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation [5],[14]
Fair Value $ 71,958 [4],[15] $ 69,391 [5],[14]
Fair Value as a Percentage of Net Assets 5.00% [1],[4],[15] 5.70% [2],[5],[14]
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | AP Hercules Aggregator, SCSp | Norway | Transportation    
Schedule of Investments [Line Items]    
Industry [5],[16]   Transportation
Fair Value [5],[16]   $ 63,367
Fair Value as a Percentage of Net Assets [2],[5],[16]   5.20%
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | AP Jaguar Holdings, LLC | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities  
Fair Value [4],[17] $ 113,501  
Fair Value as a Percentage of Net Assets [1],[4],[17] 7.90%  
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | AP Pegasus Holdings , SCSP | Canada | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities  
Fair Value [4],[18] $ 121,639  
Fair Value as a Percentage of Net Assets [1],[4],[18] 8.50%  
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | Novus Holdings Parent, L.P. | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation [5]
Fair Value $ 102,530 [4] $ 90,832 [5]
Fair Value as a Percentage of Net Assets 7.20% [1],[4] 7.40% [2],[5]
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | Canada | Social    
Schedule of Investments [Line Items]    
Industry Social Social [5]
Fair Value $ 43,838 [4] $ 41,374 [5]
Fair Value as a Percentage of Net Assets 3.10% [1],[4] 3.40% [2],[5]
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | Norway | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation  
Fair Value [4] $ 66,693  
Fair Value as a Percentage of Net Assets [1],[4] 4.70%  
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital [5]
Fair Value $ 53,648 [4] $ 20,719 [5]
Fair Value as a Percentage of Net Assets 3.70% [1],[4] 1.70% [2],[5]
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities Power & Utilities [5],[8]
Fair Value $ 176,933 [4],[9] $ 163,989 [5],[8]
Fair Value as a Percentage of Net Assets 12.40% [1],[4],[9] 13.40% [2],[5],[8]
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Social    
Schedule of Investments [Line Items]    
Industry Social  
Fair Value [4] $ 54,083  
Fair Value as a Percentage of Net Assets [1],[4] 3.80%  
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation [5],[8]
Fair Value $ 65,630 [4] $ 66,482 [5],[8]
Fair Value as a Percentage of Net Assets 4.60% [1],[4] 5.40% [2],[5],[8]
Investment, Identifier [Axis]: Series II | Investments in Partnership Investment Vehicle | Phoebe JV Energy, LLC | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities Power & Utilities [5]
Principal Amount or Number of Shares 47,931 [4] 47,400 [5]
Fair Value $ 77,927 [4] $ 75,281 [5]
Fair Value as a Percentage of Net Assets 5.40% [1],[4] 6.20% [2],[5]
Investment, Identifier [Axis]: Total | Derivative Assets |Foreign Currency Forward Contracts    
Schedule of Investments [Line Items]    
Derivative Assets, Fair Value $ 4,412 [6] $ 1,060 [7]
Derivative Assets, Fair Value as a Percentage of Net Assets 0.20% [1],[6] 0.10% [2],[7]
Investment, Identifier [Axis]: Total | Derivative Liabilities | Foreign Currency Forward Contracts    
Schedule of Investments [Line Items]    
Derivative Liabilities, Fair Value $ (559) [6] $ 1,189 [7]
Derivative Liabilities, Fair Value as a Percentage of Net Assets 0.00% [1],[6] (0.10%) [2],[7]
Investment, Identifier [Axis]: Total | Investments in Loans | Other Infrastructure Assets | Europe | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital
Fair Value $ 23,506 $ 24,122
Fair Value as a Percentage of Net Assets 1.20% [1] 1.40% [2]
Investment, Identifier [Axis]: Total | Investments in Loans | Other Infrastructure Assets | United States | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital [8]
Fair Value $ 205,702 [9] $ 165,145 [8]
Fair Value as a Percentage of Net Assets 10.20% [1],[9] 9.50% [2],[8]
Investment, Identifier [Axis]: Total | Investments in Loans | Other Infrastructure Assets | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities Power & Utilities [8]
Fair Value $ 100,889 [9] $ 189,711 [8]
Fair Value as a Percentage of Net Assets 5.00% [1],[9] 10.90% [2],[8]
Investment, Identifier [Axis]: Total | Investments in Loans | Other Infrastructure Assets | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation
Fair Value $ 73,196 $ 48,003
Fair Value as a Percentage of Net Assets 3.60% [1] 2.80% [2]
Investment, Identifier [Axis]: Total | Investments in Loans | Other Infrastructure Assets | Various | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital
Fair Value $ 32,142 $ 3,638
Fair Value as a Percentage of Net Assets 1.60% [1] 0.20% [2]
Investment, Identifier [Axis]: Total | Investments in Loans | Other Infrastructure Assets | Various | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation
Fair Value $ 24,400 $ 22,936
Fair Value as a Percentage of Net Assets 1.20% [1] 1.30% [2]
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | AIC 3-Z Subsidiary, LLC | United States | Various    
Schedule of Investments [Line Items]    
Industry Various Various [5],[10]
Fair Value $ 164,360 [4],[11] $ 146,247 [5],[10]
Fair Value as a Percentage of Net Assets 8.20% [1],[4],[11] 8.40% [2],[5],[10]
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | AP Aegis Aggregator, SCSp | Europe | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital [5],[12]
Fair Value $ 142,882 [4],[13] $ 133,863 [5],[12]
Fair Value as a Percentage of Net Assets 7.10% [1],[4],[13] 7.70% [2],[5],[12]
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | AP Ballast, L.P. | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation [5],[14]
Fair Value $ 101,272 [4],[15] $ 98,754 [5],[14]
Fair Value as a Percentage of Net Assets 5.00% [1],[4],[15] 5.70% [2],[5],[14]
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | AP Hercules Aggregator SCSp | Norway | Transportation    
Schedule of Investments [Line Items]    
Industry [5],[16]   Transportation
Fair Value [5],[16]   $ 90,181
Fair Value as a Percentage of Net Assets [2],[5],[16]   5.20%
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | AP Jaguar Holdings, LLC | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities  
Fair Value [4],[17] $ 159,738  
Fair Value as a Percentage of Net Assets [1],[4],[17] 8.00%  
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | AP Pegasus Holdings , SCSP | Canada | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities  
Fair Value [4],[18] $ 171,191  
Fair Value as a Percentage of Net Assets [1],[4],[18] 8.50%  
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | Novus Holdings Parent, L.P. | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation [5]
Fair Value $ 144,298 [4] $ 129,267 [5]
Fair Value as a Percentage of Net Assets 7.20% [1],[4] 7.40% [2],[5]
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | Canada | Social    
Schedule of Investments [Line Items]    
Industry Social Social [5]
Fair Value $ 61,696 [4] $ 58,881 [5]
Fair Value as a Percentage of Net Assets 3.10% [1],[4] 3.40% [2],[5]
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | Norway | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation  
Fair Value [4] $ 93,862  
Fair Value as a Percentage of Net Assets [1],[4] 4.70%  
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Digital    
Schedule of Investments [Line Items]    
Industry Digital Digital [5]
Fair Value $ 75,503 [4] $ 29,486 [5]
Fair Value as a Percentage of Net Assets 3.80% [1],[4] 1.70% [2],[5]
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities Power & Utilities [5],[8]
Fair Value $ 249,007 [4],[9] $ 233,379 [5],[8]
Fair Value as a Percentage of Net Assets 12.40% [1],[4],[9] 13.40% [2],[5],[8]
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Social    
Schedule of Investments [Line Items]    
Industry Social  
Fair Value [4] $ 76,115  
Fair Value as a Percentage of Net Assets [1],[4] 3.80%  
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | Other Infrastructure Assets | United States | Transportation    
Schedule of Investments [Line Items]    
Industry Transportation Transportation [5],[8]
Fair Value $ 92,366 [4] $ 94,614 [5],[8]
Fair Value as a Percentage of Net Assets 4.60% [1],[4] 5.50% [2],[5],[8]
Investment, Identifier [Axis]: Total | Investments in Partnership Investment Vehicle | Phoebe JV Energy, LLC | United States | Power & Utilities    
Schedule of Investments [Line Items]    
Industry Power & Utilities Power & Utilities [5]
Principal Amount or Number of Shares 67,457 [4] 67,457 [5]
Fair Value $ 109,672 [4] $ 107,136 [5]
Fair Value as a Percentage of Net Assets 5.50% [1],[4] 6.20% [2],[5]
[1] Fair Value as a percentage of Net Assets shown as a percentage of Net Assets of the respective Series. Numbers may not add due to rounding.
[2] Fair Value as a percentage of Net Assets shown as a percentage of Net Assets of the respective Series. Numbers may not sum due to rounding.
[3] Refer to Note 4. Derivative Instruments for additional information of derivative assets and derivative liabilities.
[4] Partnership investment vehicle includes investments in both limited partnerships and limited liability companies.
[5] Partnership investment vehicle includes investments in both limited partnerships and limited liability companies.
[6] Refer to Note 4. Derivative Instruments for additional information of derivative assets and derivative liabilities.
[7] Refer to Note 4. Derivative Instruments for additional information of derivative assets and derivative liabilities.
[8] There were no single investments included in this category that exceeded 5% of net assets.
[9] There were no single investments included in this category that exceeded 5% of net assets.
[10] Represents an investment in an affiliated entity of the Company.
[11] Represents an investment in an affiliated entity of the Company.
[12] Series I, Series II and the Company indirectly own 363,550,624, 859,161,065, and 1,222,711,689 units, respectively, in Aegis TopCo S.a.r.l., through AP Aegis Aggregator, SCSp an investment in the Digital industry in Europe. The fair value of Series I, Series II and the Company investment in units of Aegis TopCo S.a.r.l. were $39,726, $93,883 and $133,609, respectively, and the percentage of Net Asset Value of Series I, Series II, and the Company for each investment was 7.8%.
[13] Series I, Series II and the Company indirectly own 353,920,082, 868,791,607, and 1,222,711,689 units, respectively, in Aegis TopCo S.a.r.l., through AP Aegis Aggregator, SCSp an investment in the Digital industry in Europe. The fair value of Series I, Series II and the Company investment in units of Aegis TopCo S.a.r.l. were $41,289, $101,356 and $142,645, respectively, and the percentage of Net Asset Value of Series I, Series II, and the Company for each investment was 7.2%.
[14] Series I, Series II and the Company indirectly own 2,973, 7,027, and 10,000 units, respectively, in Watco Companies LLC., through AP Ballast, L.P., an investment in the Transportation industry in the United States. The fair value of Series I, Series II and the Company investment in units of Watco Companies LLC were $29,361, $69,389 and $98,750, respectively, and the percentage of Net Asset Value of Series I, Series II, and the Company for each investment was 5.7%.
[15] Series I, Series II and the Company indirectly own 2,895, 7,105, and 10,000 units, respectively, in Watco Companies LLC, through AP Ballast, L.P. an investment in the Transportation industry in the United States. The fair value of Series I, Series II and the Company investment in units of Watco Companies LLC were $29,320, $71,974 and $101,294 respectively, and the percentage of Net Asset Value of Series I, Series II, and the Company for each investment was 5.0%.
[16] Series I, Series II and the Company indirectly own 24,570,172, 58,065,463, and 82,635,635 units, respectively, in AP Hercules UK Ltd, through AP Hercules Aggregator SCSp, an investment in the Transportation industry in Norway. The fair value of Series I, Series II and the Company investment in units of AP Hercules UK Ltd were $26,843, $63,436 and $90,279, respectively, and the percentage of Net Asset Value of Series I, Series II, and the Company for each investment was 5.2%.
[17] Series I, Series II and the Company indirectly own 43,418,259, 106,581,741, and 150,000,000 units, respectively, in Eagle Creek Holdings, LLC, through AP Jaguar Holdings, LLC an investment in the Power & Utilities industry in the United States. The fair value of Series I, Series II and the Company investment in units of Eagle Creek Holdings, LLC were $46,232, $113,489 and $159,721, respectively, and the percentage of Net Asset Value of Series I, Series II, and the Company for each investment was 8.0%.
[18] Series I, Series II and the Company indirectly own 49,599,116, 121,754,312, and 171,353,428 units, respectively, in Pembina Gas Infrastructure Inc., through AP Pegasus Holdings, SCSP an investment in the Power & Utilities industry in Canada. The fair value of Series I, Series II and the Company investment in units of Pembina Gas Infrastructure Inc. were $49,552, $121,639 and $171,191, respectively, and the percentage of Net Asset Value of Series I, Series II, and the Company for each investment was 8.5%.