v3.26.1
Borrowings - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Apr. 14, 2026
Dec. 02, 2025
Oct. 15, 2025
Mar. 27, 2025
Mar. 26, 2025
Jul. 22, 2024
Jul. 16, 2024
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Apr. 30, 2026
Apr. 16, 2026
Debt Instrument [Line Items]                            
Asset coverage ratio               200.32%   200.32%   197.52%    
Asset coverage ratio, if certain conditions are met               150.00%   150.00%        
Minimum required asset coverage ratio               150.00%   150.00%        
Administration fee expense               $ 170,000 $ 202,000 $ 460,000 $ 370,000      
Minimum                            
Debt Instrument [Line Items]                            
Asset coverage ratio               200.00%   200.00%        
Participation Agreement | Macquarie Bank Limited [Member]                            
Debt Instrument [Line Items]                            
Maximum debt outstanding               $ 0 $ 85,114,000 $ 0 $ 85,114,000      
Debt, weighted average annualized interest cost               0.00% 7.40% 0.00% 7.44%      
Debt Weighted Average, daily debt outstanding Payment               $ 0 $ 79,253,000 $ 0 $ 60,518,000      
Investment repurchase maximum settlement period           90 days                
Secured borrowing               0   0   $ 0    
Secured Loan Facility [Member]                            
Debt Instrument [Line Items]                            
Maximum debt outstanding               $ 445,000,000   445,000,000   445,000,000    
Maximum debt outstanding                   $ 349,118,000   393,305,000    
Spread rate               3.65% 4.32% 3.65% 4.32%      
Secured Loan Facility [Member] | Subsidiary II                            
Debt Instrument [Line Items]                            
Maximum debt outstanding $ 445,000,000                         $ 400,000,000
Maximum debt outstanding               $ 349,118,000 $ 313,600,000 $ 393,305,000 $ 313,600,000      
Line of Credit Facility, Maximum Borrowing Capacity Increased $ 45,000,000                          
Maturity date Jul. 15, 2026           Jul. 16, 2029              
Interest rate on outstanding loans description             The interest rate on outstanding loans will be calculated by the 1-month SOFR rate plus a spread of 2.20%. Prior to March 27, 2025, the interest rate on outstanding loan was calculated by taking the highest of the Prime Rate, the Federal Funds Rate plus 0.50%, the 1-month SOFR rate plus 1.0% or zero, plus a spread of 2.60%.              
Spread rate         2.60%                  
Upfront fee to be paid in installments       $ 750,000 $ 3,000,000                  
Administration fee expense         $ 5,000                  
Undrawn commitment threshold percentage             50.00%              
Debt, weighted average annualized interest cost               5.84% 6.50% 5.86% 6.67%      
Debt Weighted Average, daily debt outstanding Payment               $ 344,017,000 $ 285,974,000 $ 357,908,000 $ 236,379,000      
Secured Loan Facility [Member] | Subsidiary II | Federal Funds Rate                            
Debt Instrument [Line Items]                            
Spread rate         0.50%                  
Secured Loan Facility [Member] | Subsidiary II | Secured Overnight Financing Rate (SOFR)                            
Debt Instrument [Line Items]                            
Spread rate     2.20%   1.00%                  
Secured Loan Facility [Member] | Subsidiary II | Undrawn Commitment is Less than or Equal to 50% of Aggregate Commitment                            
Debt Instrument [Line Items]                            
Percentage of non-usage fee             0.50%              
Secured Loan Facility [Member] | Subsidiary II | Undrawn Commitment is Greater than 50% of Aggregate Commitment                            
Debt Instrument [Line Items]                            
Percentage of non-usage fee             1.00%              
Credit Facility [Member]                            
Debt Instrument [Line Items]                            
Maximum debt outstanding   $ 150,000,000           187,500,000   187,500,000   150,000,000 $ 187,500,000  
Maximum debt outstanding               125,000,000 $ 0 125,000,000 $ 0 88,000,000    
Line of Credit Facility, Maximum Borrowing Capacity Increased               $ 300,000,000   $ 300,000,000        
Maturity date   Dec. 02, 2030                        
Spread rate   0.50%           3.65%   3.65%        
Percentage of non-usage fee   0.375%                        
Debt, weighted average annualized interest cost               5.65% 0.00% 5.66% 0.00%      
Debt Weighted Average, daily debt outstanding Payment               $ 107,945,000 $ 0 $ 102,370,000 $ 0      
Amount of swingline loans   $ 50,000,000                        
Credit Facility [Member] | Secured Overnight Financing Rate (SOFR)                            
Debt Instrument [Line Items]                            
Spread rate   1.00%                        
Credit Facility [Member] | Senior Secured Revolving Credit Agreement                            
Debt Instrument [Line Items]                            
Maximum debt outstanding   $ 75,000,000           $ 187,500,000   187,500,000   150,000,000 $ 93,750,000  
Maximum debt outstanding                   $ 125,000,000   $ 88,000,000    
Spread rate               2.00% [1]   2.00% [2]        
Credit Facility [Member] | Permanent commitment maturing on December 3, 2029                            
Debt Instrument [Line Items]                            
Maximum debt outstanding   75,000,000                        
Credit Facility [Member] | Temporary commitment maturing on December 2, 2026                            
Debt Instrument [Line Items]                            
Maximum debt outstanding   $ 75,000,000                        
[1] As of June 30, 2026, the 1-month SOFR rate was 3.65%.
[2] As of June 30, 2026, the 1-month SOFR rate was 3.65%.