v3.26.3
Investments - Schedule of Investments at Fair Value and Amortized Cost (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Schedule of Investments [Line Items]    
Amortized Cost [1],[4] $ 670,341 [2],[3] $ 1,604,407 [5],[6]
Fair Value [1],[4] 597,194 1,576,550
First-lien senior secured debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 495,017 1,251,162
Fair Value 462,875 1,221,372
Second-lien senior secured debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 82,928 159,446
Fair Value 37,214 131,054
Unsecured debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 20,841 37,347
Fair Value 21,422 38,673
Specialty finance debt investments    
Schedule of Investments [Line Items]    
Amortized Cost 8,518 7,483
Fair Value 8,526 7,491
Preferred equity investments    
Schedule of Investments [Line Items]    
Amortized Cost 19,878 67,578
Fair Value 16,087 67,143
Common equity investments    
Schedule of Investments [Line Items]    
Amortized Cost 28,970 55,486
Fair Value 33,576 80,120
Specialty finance equity investments    
Schedule of Investments [Line Items]    
Amortized Cost 13,855 25,571
Fair Value 17,180 30,360
Joint ventures    
Schedule of Investments [Line Items]    
Amortized Cost 334 334
Fair Value $ 314 $ 337
[1] Certain portfolio company investments are subject to contractual restrictions on sales. Refer to footnote 30 for additional information on the Company’s restricted securities.
[2] The amortized cost represents the original cost adjusted for the accretion and amortization of discounts and premiums, as applicable, on debt investments using the effective interest method.
[3] As of September 30, 2026, the net estimated unrealized loss for U.S. federal income tax purposes was $69.1 million based on a tax cost basis of $0.7 billion. As of September 30, 2026, the estimated aggregate gross unrealized loss for U.S. federal income tax purposes was $86.1 million and the estimated aggregate gross unrealized gain for U.S. federal income tax purposes was $17.0 million.
[4] otherwise indicated, all or a portion of the Company’s portfolio companies are pledged as collateral supporting the available capacity under the SPV Asset Facility. See “Note 5 — Debt.”
[5] The amortized cost represents the original cost adjusted for the accretion and amortization of discounts and premiums, as applicable, on debt investments using the effective interest method.
[6] As of December 31, 2025, the net estimated unrealized loss for U.S. federal income tax purposes was $25.4 million based on a tax cost basis of $1.6 billion. As of December 31, 2025, the estimated aggregate gross unrealized loss for U.S. federal income tax purposes was $73.1 million and the estimated aggregate gross unrealized gain for U.S. federal income tax purposes was $47.7 million.