v3.25.2
Fair Value Measurement and Disclosures - Schedule of the Valuation of the Company's Investments in the Fair Value Hierarchy Levels (Parenthetical) (Detail) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value $ 940,619 $ 631,905
Investments Measured at NAV [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value $ 377,464 [1],[2],[3] $ 201,670 [4],[5],[6],[7]
Investment, Type [Extensible Enumeration] Investment in Preferred Units of Liability Company [Member] Investment in Preferred Units of Liability Company [Member]
Unfunded commitments $ 259,498 $ 30,240
Investments Measured at NAV [Member] | Investment in Preferred Units of Liability Company [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value 269,154 114,695
Series I [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value 279,314 166,652
Series I [Member] | Investments Measured at NAV [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value $ 112,087 [1],[2],[3] $ 53,186 [4],[5],[6],[7]
Investment, Type [Extensible Enumeration] Investment in Preferred Units of Liability Company [Member] Investment in Preferred Units of Liability Company [Member]
Unfunded commitments $ 77,081 $ 7,975
Series I [Member] | Investments Measured at NAV [Member] | Investment in Preferred Units of Liability Company [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value 79,941 30,248
Series II [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value 661,305 465,253
Series II [Member] | Investments Measured at NAV [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value $ 265,377 [1],[2],[3] $ 148,484 [4],[5],[6],[7]
Investment, Type [Extensible Enumeration] Investment in Preferred Units of Liability Company [Member] Investment in Preferred Units of Liability Company [Member]
Unfunded commitments $ 182,417 $ 22,265
Series II [Member] | Investments Measured at NAV [Member] | Investment in Preferred Units of Liability Company [Member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Fair Value $ 189,213 $ 84,447
[1] As of June 30, 2025, Series I, Series II and the Company had unfunded commitments of $77,081, $182,417, and $259,498, respectively, related to investments measured at NAV.
[2] Included within certain investments measured at NAV were Level III investments. Series I, Series II, and the Company Level III amounts of these investments were $79,941, $189,213, and $269,154, respectively.
[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.
[4] As of December 31, 2024, Series I, Series II, and the Company had unfunded commitments of $7,975, $22,265 and $30,240 respectively, related to investments measured at NAV.
[5] Included within certain investments measured at NAV were Level III investments. Series I, Series II, and the Company Level III amounts of these investments were $30,248, $84,447, and $114,695, respectively.
[6] On October 23, 2024, the Company entered into a Sale and Purchase Agreement to sell its interest in Yondr Group, L.P. As of December 31, 2024, the sale was subject to conditions to complete.
[7] 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.