v3.26.1
Investments - Investment Portfolio at Cost and Fair Value (Details) - USD ($)
$ in Thousands
6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Schedule of Investments [Line Items]    
Cost $ 13,856,590 $ 14,387,967
Fair Value $ 13,364,295 $ 14,207,294
Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 100.00% 100.00%
First lien debt    
Schedule of Investments [Line Items]    
Cost $ 13,441,436 [1],[2],[3] $ 14,066,122 [4],[5],[6]
Fair Value $ 12,944,578 [1],[3] $ 13,866,434 [4],[6]
First lien debt | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 96.80% 97.60%
Second lien debt    
Schedule of Investments [Line Items]    
Cost $ 255,801 [1],[2],[3] $ 232,448 [4],[5],[6]
Fair Value $ 250,182 [1],[3] $ 231,650 [4],[6]
Second lien debt | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 1.90% 1.60%
Unsecured debt    
Schedule of Investments [Line Items]    
Cost $ 14,495 [1],[2],[3] $ 13,049
Fair Value $ 12,348 [1],[3] $ 12,278
Unsecured debt | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 0.10% 0.10%
Equity    
Schedule of Investments [Line Items]    
Cost $ 144,858 [1],[2],[3] $ 76,348 [4],[5],[6]
Fair Value $ 157,187 [1],[3] $ 96,932 [4],[6]
Equity | Investment Owned, At Fair Value | Investment Type Concentration Risk    
Schedule of Investments [Line Items]    
Concentration Risk, Percentage 1.20% 0.70%
[1] All securities are exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”) and may be deemed to be “restricted securities.” As of June 30, 2026, the aggregate fair value of these securities is $13,364.3 million or 225.04% of the Company’s net assets. The initial acquisition dates have been included for such securities.
[2] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method in accordance with accounting principles generally accepted in the United States of America (“GAAP”).
[3] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Condensed Consolidated Schedule of Investments) are denominated in U.S. dollars. As of June 30, 2026, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), Norwegian Krone (NOK), and Australian Dollars (AUD). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.
[4] All securities are exempt from registration under the Securities Act of 1933, as amended (the “Securities Act”), excluding Axsome Therapeutics, Inc. - Common Stock, and may be deemed to be “restricted securities.” As of December 31, 2025, the aggregate fair value of these securities is $14,206.9 million or 227.48% of the Company’s net assets. The initial acquisition dates have been included for such securities.
[5] The cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method in accordance with accounting principles generally accepted in the United States of America (“GAAP”).
[6] Unless otherwise indicated, all debt and equity investments held by the Company (which such term “Company” shall include the Company’s consolidated subsidiaries for purposes of this Condensed Consolidated Schedule of Investments) are denominated in U.S. dollars. As of December 31, 2025, the Company had investments denominated in Canadian Dollars (CAD), Euros (EUR), British Pounds (GBP), Danish Krone (DKK), Swedish Krona (SEK), Norwegian Krone (NOK), and Australian Dollars (AUD). All debt investments are income producing unless otherwise indicated. All equity investments are non-income producing unless otherwise noted. Certain portfolio company investments are subject to contractual restrictions on sales. The total par amount (in thousands) is presented for debt investments, while the number of shares or units (in whole amounts) owned is presented for equity investments. Each of the Company’s investments is pledged as collateral, under one or more of its credit facilities unless otherwise indicated.