v3.26.3
Summary of Significant Accounting Policies - Additional Information (Details)
 9 Months Ended
Sep. 30, 2026
USD ($)
Segment
Dec. 31, 2025
USD ($)
Line of Credit Facility [Line Items]    
Investment aggregate capitalization 5.00%  
Investments aggregating capitalization valuations of Percentage 5.00%  
Minimum aggregate percentage of assets required for applicability of foregoing investment policies 5.00%  
Cash and cash equivalents $ 253,136,577 $ 61,075,494
Restricted cash $ 0 $ 0
Percentage of foreign currency denominated investments 0.011 0.004
Non-expiring capital loss carryforwards   $ 825,454,996
Fair Value $ 543,534,440 1,533,302,472
Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] srt:ChiefExecutiveOfficerMember, srt:ChiefFinancialOfficerMember  
Number of Operating Segments | Segment 1  
Number of Reportable Segments | Segment 1  
Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description numerous other factors and metrics, the CODM utilizes net income as a key metric to make dividend recommendations to the Board of Directors. As the Company’s operations comprise of a single reporting segment, the segment assets are reflected on the accompanying Consolidated Statements of Assets and Liabilities as “total assets” and the significant segment expenses are listed on the accompanying Consolidated Statements of Operations.  
Twelve Senior Debt | Income Approach    
Line of Credit Facility [Line Items]    
Fair Value $ 15,900,000  
Twelve Senior Debt | Valuation Technique, Consensus Pricing Model    
Line of Credit Facility [Line Items]    
Fair Value 57,600,000  
Four Senior Debt | Income Approach    
Line of Credit Facility [Line Items]    
Fair Value 1,000,000  
Interest Rate Swap    
Line of Credit Facility [Line Items]    
Notional amount of interest rate swap $ 35,000,000  
Fixed interest rate 2.633%  
JPMorgan U.S. Government Money Market Fund    
Line of Credit Facility [Line Items]    
Cash and cash equivalents $ 160,000,000 $ 3,800,000
Percentage of cash and cash equivalents net assets held 34.00% 0.60%
Yield percentage of cash equivalents 3.79% 3.66%
Allspring Government Money Market Fund    
Line of Credit Facility [Line Items]    
Cash and cash equivalents $ 900,000 $ 47,600,000
Percentage of cash and cash equivalents net assets held 0.20% 8.00%
Yield percentage of cash equivalents 3.74% 3.65%
BlackRock Liquidity Funds    
Line of Credit Facility [Line Items]    
Cash and cash equivalents $ 83,700,000  
Percentage of cash and cash equivalents net assets held 17.80%  
Yield percentage of cash equivalents 3.78%