v3.26.1
Debt - Additional Information (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 03, 2026
Mar. 13, 2026
Oct. 08, 2025
May 28, 2025
Jan. 22, 2025
Nov. 27, 2024
Nov. 18, 2024
Apr. 19, 2024
Dec. 15, 2023
Jun. 03, 2022
Dec. 31, 2025
Jun. 30, 2026
Dec. 31, 2025
Dec. 17, 2025
Dec. 05, 2025
Oct. 01, 2025
Aug. 07, 2025
May 02, 2025
Nov. 04, 2024
Series 2025 A Senior Notes                                      
Debt Instrument [Line Items]                                      
Credit facility, Remaining borrowing capacity                       $ 150,000,000              
Line Of Credit Facility Interest Rate During Period                       6.14%              
Promissory Notes                                      
Debt Instrument [Line Items]                                      
Credit facility, Remaining borrowing capacity                       $ 100,000              
Line Of Credit Facility Interest Rate During Period                       12.00%              
Total Capacity                               $ 110,000      
Payment of interest on debt                     $ 120                
SOFR                                      
Debt Instrument [Line Items]                                      
Debt instrument, interest rate                     0.20% 0.20% 0.20%            
EURIBOR                                      
Debt Instrument [Line Items]                                      
Outstanding bore interest                     $ 20,000,000 $ 76,600,000 $ 20,000,000            
Rate                       1.88 1.88            
CORRA                                      
Debt Instrument [Line Items]                                      
Outstanding bore interest                     $ 31,000,000 $ 67,700,000 $ 31,000,000            
Rate                       1.88 1.88            
Interest rate                       0.30% 0.30%            
Revolving Credit Facility and Term Loan Facility | PNC Bank, National Association                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                   $ 200,000,000                  
Description of variable rate basis                   The Credit Facility matures on June 3, 2032 and generally bears interest at three-month Term SOFR, plus (a) 1.55% if the aggregate balance of “Middle Market Loans” (as defined in the Credit and Security Agreement) is less than or equal to 25%, (b) 1.65% if the aggregate balance of Middle Market Loans is above 25% and less than or equal to 50%, (c) 1.80% if the aggregate balance of Middle Market Loans is above 50% and less than or equal to 75%, or (d) 1.90% if the aggregate balance of Middle Market Loans is above 75%                  
Credit facility, maturity date                   Jun. 03, 2032                  
Weighted average interest rate on debt                     5.91% 5.52% 5.91%            
Credit Facility                                      
Debt Instrument [Line Items]                                      
Credit facility, Remaining borrowing capacity                       $ 650,000,000              
Rate                       1.90 [1] 1.97 [2]            
Total Capacity                     $ 650,000,000 $ 650,000,000 $ 650,000,000            
Revolving Credit Facility                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity               $ 75,000,000                 $ 600,000,000    
Credit facility, Remaining borrowing capacity                       $ 365,000,000              
Credit facility, maturity date               Apr. 19, 2029                      
Rate                       1.88 [3] 1.88 [4]            
Revolving credit facility, interest rate, description               The Revolving Credit Facility matures on April 19, 2029 and generally bears interest at either (i) term SOFR plus a credit spread adjustment plus margin of 2.00% or 1.875% per annum or (ii) the prime rate plus a margin of 2.00% or 1.875% per annum, in each case subject to certain conditions.                      
Total Capacity                     365,000,000 [5] $ 365,000,000 [6] $ 365,000,000 [5]   $ 365,000,000        
Revolving Credit Facility | Minimum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                                 150,000,000   $ 75,000,000
Revolving Credit Facility | Maximum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                                 $ 315,000,000   $ 150,000,000
SG Revolving Credit Facility                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity       $ 200,000,000                              
Credit facility, Remaining borrowing capacity                       $ 200,000,000              
Credit facility, maturity date       May 29, 2027                              
Rate                       1.25 1.15            
Revolving credit facility, interest rate, description       The SG Revolving Credit Facility matures on May 29, 2027 and generally bears interest at term SOFR plus, for a period of 1 year from the date of entry into the SG Revolving Credit Facility, 1.15% and, thereafter 1.25%. The proceeds of the SG Revolving Credit Facility were used to acquire a portfolio of broadly syndicated leveraged loans (the “SG Portfolio Assets”).                              
Total Capacity                     $ 200,000,000 $ 200,000,000 $ 200,000,000            
SG Revolving Credit Facility | Minimum                                      
Debt Instrument [Line Items]                                      
Debt instrument, interest rate       1.15%                              
SG Revolving Credit Facility | Maximum                                      
Debt Instrument [Line Items]                                      
Debt instrument, interest rate       1.25%                              
BMO Revolving Credit Facility                                      
Debt Instrument [Line Items]                                      
Credit facility, Remaining borrowing capacity                       $ 200,000,000              
Rate                       1.50              
Total Capacity                       $ 200,000,000              
Second Amendment | Minimum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                 $ 50,000,000                    
Second Amendment | Maximum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                 75,000,000                    
Second Amendment | Credit Facility | Minimum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                 150,000,000                    
Second Amendment | Credit Facility | Maximum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                 $ 225,000,000                    
First Amendment | Minimum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                                   $ 125,000,000  
First Amendment | Maximum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                                   150,000,000  
First Amendment | Credit Facility | Minimum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                                   325,000,000  
First Amendment | Credit Facility | Maximum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity                                   $ 500,000,000  
Third Amendment                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate 0.70%                                    
Third Amendment | Minimum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity           $ 75,000,000                          
Third Amendment | Maximum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity           $ 125,000,000                          
Third Amendment | Credit Facility                                      
Debt Instrument [Line Items]                                      
Debt instrument, maturity date           Jun. 03, 2033                          
Credit facility, maturity date           Dec. 15, 2025                          
Third Amendment | Credit Facility | Minimum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity           $ 225,000,000                          
Rate of term of commitment is amended           0.35%                          
Third Amendment | Credit Facility | Maximum                                      
Debt Instrument [Line Items]                                      
Credit facility, maximum borrowing capacity           $ 325,000,000                          
Rate of term of commitment is amended           0.50%                          
Period Of Three Years [Member] | BMO Revolving Credit Facility                                      
Debt Instrument [Line Items]                                      
Amount of aggregate principal   $ 200,000,000                                  
Debt instrument, basis spread on variable rate   1.50%                                  
Period Of Thereafter Three Years [Member] | BMO Revolving Credit Facility                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate   1.75%                                  
Aggregate Balance of Middle Market Loans Less than or Equal to 25% | Revolving Credit Facility and Term Loan Facility | PNC Bank, National Association                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate                   1.55%                  
Aggregate Balance of Middle Market Loans Less than or Equal to 25% | Second Amendment | Credit Facility                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate                 1.62%                    
Aggregate Balance of Middle Market Loans Above 25% and Less than or Equal to 50% | Revolving Credit Facility and Term Loan Facility | PNC Bank, National Association                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate                   1.65%                  
Aggregate Balance of Middle Market Loans Above 25% and Less than or Equal to 50% | Second Amendment | Credit Facility                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate                 1.77%                    
Aggregate Balance of Middle Market Loans Above 50% and Less than or Equal to 75% | Revolving Credit Facility and Term Loan Facility | PNC Bank, National Association                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate                   1.80%                  
Aggregate Balance of Middle Market Loans Above 50% and Less than or Equal to 75% | Second Amendment | Credit Facility                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate                 1.96%                    
Aggregate Balance of Middle Market Loans Above 75% | Revolving Credit Facility and Term Loan Facility | PNC Bank, National Association                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate                   1.90%                  
Aggregate Balance of Middle Market Loans Above 75% | Second Amendment | Credit Facility                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate                 2.12%                    
Revolving Advances is Greater Than 50% | Third Amendment | Credit Facility                                      
Debt Instrument [Line Items]                                      
Line of credit facility unused portion of commitment fee percentage           0.50%                          
Tranche A | Series 2024 A Senior Notes                                      
Debt Instrument [Line Items]                                      
Credit facility, Remaining borrowing capacity                       $ 70,000,000              
Line Of Credit Facility Interest Rate During Period                       7.14%              
Amount of aggregate principal             $ 70,000,000                        
Debt instrument, interest rate         7.14%   7.14%                        
Debt instrument, maturity date             Nov. 18, 2027                        
Tranche A | Series 2025 A Senior Notes                                      
Debt Instrument [Line Items]                                      
Credit facility, Remaining borrowing capacity                       $ 50,000,000              
Line Of Credit Facility Interest Rate During Period                       5.78%              
Tranche A | First Supplement to Master Note Purchase Agreement [Member] | Series 2025 A Senior Notes                                      
Debt Instrument [Line Items]                                      
Amount of aggregate principal     $ 50,000,000                                
Debt instrument, interest rate     5.78%                                
Debt instrument, maturity date     Dec. 17, 2028                                
Tranche B | Series 2024 A Senior Notes                                      
Debt Instrument [Line Items]                                      
Credit facility, Remaining borrowing capacity                       $ 55,000,000              
Line Of Credit Facility Interest Rate During Period                       7.33%              
Amount of aggregate principal         $ 55,000,000                            
Debt instrument, interest rate         7.33%                            
Debt instrument, maturity date         Jan. 22, 2025                            
Tranche B | Series 2025 A Senior Notes                                      
Debt Instrument [Line Items]                                      
Debt instrument, interest rate     6.14%                     5.78%          
Tranche B | First Supplement to Master Note Purchase Agreement [Member] | Series 2025 A Senior Notes                                      
Debt Instrument [Line Items]                                      
Amount of aggregate principal     $ 150,000,000                                
Debt instrument, interest rate     6.14%                                
Credit facility, maturity date     Oct. 08, 2030                                
Other Advance [Member] | Third Amendment                                      
Debt Instrument [Line Items]                                      
Debt instrument, basis spread on variable rate 1.70%                                    
[1] The outstanding amount was subject to a SOFR credit adjustment of 0.20%.
[2] The outstanding amount was subject to a SOFR credit adjustment of 0.20%
[3] As of June 30, 2026, $76.6 million of the outstanding amount bore interest at a rate of EURIBOR + 1.88%. $67.7 million of the outstanding amount bore interest at a rate of CORRA + 1.88%, and was subject to a CORRA credit spread adjustment of 0.30%.
[4] As of December 31, 2025, $20.0 million of the outstanding amount bore interest at a rate of EURIBOR + 1.88%. $31.0 million of the outstanding amount bore interest at a rate of CORRA + 1.88%, and was subject to a CORRA credit spread adjustment of 0.30%.
[5] Revolving Credit Facility includes an accordion provision to permit increases to a total facility amount of up to $600.0 million.
[6] Revolving Credit Facility includes an accordion provision to permit increases to a total facility amount of up to $600.0 million.