v3.26.1
Subsequent Events - Additional Information (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
1 Months Ended 4 Months Ended 6 Months Ended 8 Months Ended 9 Months Ended 11 Months Ended 12 Months Ended
Mar. 01, 2026
Feb. 01, 2026
Jan. 01, 2026
Apr. 07, 2025
Aug. 01, 2024
Feb. 28, 2026
Jan. 31, 2026
Dec. 31, 2025
Dec. 04, 2025
Dec. 31, 2025
Aug. 27, 2024
Dec. 31, 2025
Dec. 31, 2025
Jul. 31, 2025
Dec. 31, 2025
Jan. 31, 2025
Dec. 31, 2024
Jan. 30, 2023
Subsequent Event [Line Items]                                    
Aggregate principal amount               $ 13,583,000   $ 13,583,000   $ 13,583,000 $ 13,583,000   $ 13,583,000   $ 7,811,000  
Notional Amount                                 2,450,000  
Seed Investment Agreements                                    
Subsequent Event [Line Items]                                    
Number of shares issued (in shares)     7,416                              
Seed Investment Agreements | Class I                                    
Subsequent Event [Line Items]                                    
Number of shares issued (in shares)     5,845                              
Offering price per share (in dollars per share)                                   $ 25
Seed Investment Agreements | Class S                                    
Subsequent Event [Line Items]                                    
Number of shares issued (in shares)     816                              
Interest rate swaps                                    
Subsequent Event [Line Items]                                    
Notional Amount               5,400,000   5,400,000   5,400,000 5,400,000   5,400,000      
Subsequent Event                                    
Subsequent Event [Line Items]                                    
Number of business days 20 days                                  
Subsequent Event | Seed Investment Agreements                                    
Subsequent Event [Line Items]                                    
Number of shares issued (in shares)   8,220                                
Aggregate amount $ 280,152 $ 224,072 $ 203,805                              
Subsequent Event | Seed Investment Agreements | Class I                                    
Subsequent Event [Line Items]                                    
Number of shares issued (in shares)   6,527                                
Offering price per share (in dollars per share)     $ 27.48                              
Subsequent Event | Seed Investment Agreements | Class S                                    
Subsequent Event [Line Items]                                    
Number of shares issued (in shares)   636                                
Subsequent Event | Seed Investment Agreements | Class D                                    
Subsequent Event [Line Items]                                    
Number of shares issued (in shares)   1,057 755                              
Offering price per share (in dollars per share)   $ 27.26                                
Subsequent Event | Interest rate swaps                                    
Subsequent Event [Line Items]                                    
Notional Amount             $ 700,000                      
Interest rate             5.55%                      
Floating interest rate             1.875%                      
April 2031 Notes | Unsecured Debt | Subsequent Event                                    
Subsequent Event [Line Items]                                    
Aggregate principal amount                               $ 700,000    
Effective stated interest rate                               5.55%    
SB Funding Facility | Line of Credit                                    
Subsequent Event [Line Items]                                    
Aggregate principal amount               750,000   $ 750,000   $ 750,000 $ 750,000   $ 750,000   750,000  
Interest Rate                             1.90%      
Commitment fee percentage                             0.50%      
SB Funding Facility | Line of Credit | Minimum                                    
Subsequent Event [Line Items]                                    
Commitment fee percentage                   0.50%   0.50%            
SB Funding Facility | Line of Credit | Maximum                                    
Subsequent Event [Line Items]                                    
Commitment fee percentage                   1.00%   1.00%            
SB Funding Facility | Line of Credit | During Reinvestment Period                                    
Subsequent Event [Line Items]                                    
Interest Rate       2.10% 2.40%             1.90% 1.90%          
SB Funding Facility | Line of Credit | Following Reinvestment Period                                    
Subsequent Event [Line Items]                                    
Interest Rate       2.40%               2.20% 2.20%          
Commitment fee percentage         2.70%                          
SB Funding Facility | Line of Credit | Revolving Credit Facility                                    
Subsequent Event [Line Items]                                    
Maximum borrowing capacity               750,000   $ 750,000   $ 750,000 $ 750,000   $ 750,000      
SB Funding Facility | Line of Credit | Subsequent Event | Unused Commitment Portion One                                    
Subsequent Event [Line Items]                                    
Commitment fee percentage             0.50%                      
SB Funding Facility | Line of Credit | Subsequent Event | Unused Commitment Portion Two                                    
Subsequent Event [Line Items]                                    
Commitment fee percentage             0.75%                      
SB Funding Facility | Line of Credit | Subsequent Event | Unused Commitment Portion Three                                    
Subsequent Event [Line Items]                                    
Commitment fee percentage             1.00%                      
SB Funding Facility | Line of Credit | Subsequent Event | During Reinvestment Period                                    
Subsequent Event [Line Items]                                    
Interest Rate             1.80%                      
SB Funding Facility | Line of Credit | Subsequent Event | Following Reinvestment Period                                    
Subsequent Event [Line Items]                                    
Interest Rate             2.00%                      
SB Funding Facility | Line of Credit | Subsequent Event | Revolving Credit Facility                                    
Subsequent Event [Line Items]                                    
Increase in borrowing capacity             $ 750,000                      
Maximum borrowing capacity             1,500,000                      
Deferred amount of borrowing capacity             $ 375,000                      
SG Funding Facility | Line of Credit                                    
Subsequent Event [Line Items]                                    
Aggregate principal amount               1,825,000   1,825,000   1,825,000 1,825,000   1,825,000   $ 1,825,000  
SG Funding Facility | Line of Credit | Revolving Credit Facility                                    
Subsequent Event [Line Items]                                    
Aggregate principal amount               1,268,750   1,268,750   1,268,750 1,268,750   1,268,750      
Maximum borrowing capacity               $ 1,825,000   1,825,000   1,825,000 1,825,000   1,825,000      
Interest Rate               1.80% 1.90%   2.60%     2.05%        
SG Funding Facility | Line of Credit | Secured Debt                                    
Subsequent Event [Line Items]                                    
Aggregate principal amount               $ 556,250   $ 556,250   $ 556,250 $ 556,250   $ 556,250      
SG Funding Facility | Line of Credit | Subsequent Event                                    
Subsequent Event [Line Items]                                    
Increase in borrowing capacity           $ 500,000                        
SG Funding Facility | Line of Credit | Subsequent Event | Revolving Credit Facility                                    
Subsequent Event [Line Items]                                    
Maximum borrowing capacity           $ 2,325,000                        
Interest Rate           1.80%                        
SG Funding Facility | Line of Credit | Subsequent Event | Secured Debt                                    
Subsequent Event [Line Items]                                    
Aggregate principal amount           $ 500,000                        
Interest Rate           1.75%