v3.25.2
Borrowings (Additional Information) (Details)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 12, 2025
USD ($)
Apr. 10, 2025
USD ($)
Feb. 21, 2025
USD ($)
Dec. 12, 2024
USD ($)
May 02, 2024
USD ($)
Mar. 17, 2023
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2024
USD ($)
Jun. 30, 2025
CAD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2024
CAD ($)
Jun. 13, 2024
USD ($)
Line of Credit Facility [Line Items]                            
Line of credit facility, asset coverage ratio             218.00%   218.00%   218.00% 227.00% 227.00%  
Average outstanding debt             $ 889,300,000 $ 287,400,000 $ 783,400,000 $ 242,800,000        
Debt weighted average interest rate             6.47% 7.28% 6.50% 7.29%        
Weighted average interest rate paid             6.48%   6.48%   6.48% 6.59% 6.59%  
Line of credit facility, maximum borrowing capacity                           $ 500,000,000
Increase in the principal commitment under First amendment   $ 1,700,000,000                        
Net change in unrealized appreciation (depreciation) on foreign currency translation             $ (317,985) $ (366,537) $ (308,827) $ (25,837)        
Debt assets Coverage Ratio                 150.00%          
Minimum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, asset coverage ratio             150.00%   150.00%   150.00%      
Revolving Credit Facility                            
Line of Credit Facility [Line Items]                            
Line of credit facility, commitment fee           0.375%                
Line of credit facility, maximum borrowing capacity   $ 1,100,000,000       $ 460,000,000 $ 1,130,000,000   $ 1,130,000,000     $ 500,000,000   $ 1,000,000,000
Line of credit facility, description                 The JPMorgan Lending Facility is secured by a perfected first-priority interest in substantially all of the portfolio investments held by the Fund and each Guarantor, subject to certain exceptions, and includes a $60.0 million limit for swingline loans.          
Revolving Credit Facility | Minimum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate           0.75%                
Revolving Credit Facility | Maximum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate           0.875%                
Revolving Credit Facility | Foreign Currency Gain (Loss) [Member]                            
Line of Credit Facility [Line Items]                            
Net change in unrealized appreciation (depreciation) on foreign currency translation               $ 400,000 $ 300,000          
Revolving Credit Facility | Foreign Currency Gain (Loss) [Member] | Minimum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate           1.75%                
Revolving Credit Facility | Foreign Currency Gain (Loss) [Member] | Maximum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate           1.875%                
ABR Loan Facility [Member] | Minimum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate           1.75%                
ABR Loan Facility [Member] | Maximum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate           1.875%                
BSPV Facility [Member]                            
Line of Credit Facility [Line Items]                            
Line of credit facility, maximum borrowing capacity         $ 250,000,000   400,000,000   400,000,000     250,000,000    
Increase in the principal commitment under First amendment     $ 400,000,000                      
Line of credit facility commitment fee description         The Fund can draw on the BSPV Facility until May 2, 2027, and the facility will mature on May 2, 2029. During the period from May 3, 2027 to May 2, 2029, the Fund will be obligated to make equal monthly payments such that the final monthly payment renders the loan fully paid.                  
Line of credit facility maturity date         May 02, 2029                  
CSPV Facility [Member]                            
Line of Credit Facility [Line Items]                            
Line of credit facility, maximum borrowing capacity       $ 250,000,000     250,000,000   250,000,000     250,000,000    
Line of credit facility commitment fee description       The Fund can draw on the CSPV Facility until December 12, 2027, and the facility will mature on December 12, 2029. During the period from December 12, 2027 to December 12, 2029, the Fund will be obligated to make equal monthly payments such that the final monthly payment renders the loan fully paid.                    
Line of credit facility maturity date       Dec. 12, 2029                    
Prior to May 2, 2027 [Member]                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate         2.55%                  
Prior to May 2, 2027 [Member] | Minimum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate         2.55%                  
Prior to May 2, 2027 [Member] | Maximum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate         2.35%                  
Prior to December 12, 2027                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate       2.30%                    
Subsequent to May 2, 2027 [Member]                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate         3.05%                  
Subsequent to May 2, 2027 [Member] | Minimum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate         3.05%                  
Subsequent to May 2, 2027 [Member] | Maximum                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate         2.85%                  
Subsequent to December 12, 2027                            
Line of Credit Facility [Line Items]                            
Line of credit facility, basis spread on variable rate       2.80%                    
JP Morgan Lending Facility [Member]                            
Line of Credit Facility [Line Items]                            
Line of credit facility, outstanding             7,400,000   7,400,000   $ 10.1 $ 7,100,000 $ 10.2  
JP Morgan Lending Facility [Member] | Foreign Currency Gain (Loss) [Member]                            
Line of Credit Facility [Line Items]                            
Net change in unrealized appreciation (depreciation) on foreign currency translation                   $ 30,000.00        
2025 Senior Notes                            
Line of Credit Facility [Line Items]                            
Net Proceeds from Issuance                 207,400,000          
Debt Issuance Costs             $ 2,600,000   $ 2,600,000          
Increase in interest rate                 2.00%          
Series 2025A Notes [Member]                            
Line of Credit Facility [Line Items]                            
Authorized Issue and Sale aggregate principal amount $ 105,000,000                          
Interest Rate 6.15%                          
Series 2025B Notes [Member]                            
Line of Credit Facility [Line Items]                            
Authorized Issue and Sale aggregate principal amount $ 105,000,000                          
Interest Rate 6.50%