v3.26.3
Fair Value of Financial Instruments - Summary of Geographic Composition of SCP's Portfolio at Fair Value (Details) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
 [5]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 3,407,640 [1],[2],[3] $ 3,323,282 [4],[6]
Fair Value $ 3,393,035 [3],[7] $ 3,347,317 [8]
Percentage of net assets percentage 219.00% [3] 208.20%
Structured Credit Partners JV, LLC    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 2,138,270  
Fair Value $ 2,135,823  
Percentage of net assets percentage 100.00%  
Structured Credit Partners JV, LLC | Australia    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 1,981  
Fair Value $ 2,006  
Percentage of net assets percentage 0.10%  
Structured Credit Partners JV, LLC | Austria    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 2,054  
Fair Value $ 2,044  
Percentage of net assets percentage 0.10%  
Structured Credit Partners JV, LLC | Canada    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 21,334  
Fair Value $ 21,171  
Percentage of net assets percentage 1.00%  
Structured Credit Partners JV, LLC | France    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 10,609  
Fair Value $ 10,619  
Percentage of net assets percentage 0.50%  
Structured Credit Partners JV, LLC | Germany    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 13,422  
Fair Value $ 13,518  
Percentage of net assets percentage 0.60%  
Structured Credit Partners JV, LLC | Ireland    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost [9] $ 885  
Fair Value [9] $ 843  
Percentage of net assets percentage [9] 0.00%  
Structured Credit Partners JV, LLC | Luxembourg    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 24,574  
Fair Value $ 24,686  
Percentage of net assets percentage 1.20%  
Structured Credit Partners JV, LLC | Netherlands    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 23,521  
Fair Value $ 23,636  
Percentage of net assets percentage 1.10%  
Structured Credit Partners JV, LLC | United Kingdom    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 31,300  
Fair Value $ 30,834  
Percentage of net assets percentage 1.50%  
Structured Credit Partners JV, LLC | United States    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Amortized Cost $ 2,008,590  
Fair Value $ 2,006,466  
Percentage of net assets percentage 93.90%  
[1] As of September 30, 2026, the estimated cost basis of investments for U.S. federal tax purposes was $3,418,558 resulting in estimated gross unrealized gains and losses of $193,711 and $234,062, respectively.
[2] The amortized cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method.
[3] Unless otherwise indicated, the Company’s portfolio companies are domiciled in the United States. Certain portfolio company investments are subject to contractual restrictions on sales.
[4] As of December 31, 2025, the estimated cost basis of investments for U.S. federal tax purposes was $3,332,367 resulting in estimated gross unrealized gains and losses of $219,540 and $231,975, respectively.
[5] Certain portfolio company investments are subject to contractual restrictions on sales.
[6] The amortized cost represents the original cost adjusted for the amortization of discounts and premiums, as applicable, on debt investments using the effective interest method.
[7] In accordance with Financial Accounting Standards Board Accounting Standards Codification Topic 820, Fair Value Measurements (“ASC Topic 820”), unless otherwise indicated, the fair values of all investments were determined using significant unobservable inputs and are considered Level 3 investments. See Note 6 for further information related to investments at fair value.
[8] In accordance with Financial Accounting Standards Board Accounting Standards Codification Topic 820, Fair Value Measurements (“ASC Topic 820”), unless otherwise indicated, the fair values of all investments were determined using significant unobservable inputs and are considered Level 3 investments. See Note 6 for further information related to investments at fair value.
[9] Value sums to less than 0.1%.