v3.26.3
Unaudited Consolidated Schedule of Investments (Additional Information - Interest Rate Swaps) - USD ($)
$ in Millions
 9 Months Ended 12 Months Ended
Sep. 30, 2026
Dec. 31, 2025
Notional Amount $ 12,423.2 [1] $ 13,740.8 [2]
Fair Value 11,306.5 [1],[3] 13,008.6 [2],[4]
Interest rate swaps    
Notional Amount 2,600.0 1,700.0
Fair Value (60.0) 59.0
Upfront Payments/Receipts 0.0 0.0
Change in Unrealized Appreciation/(Depreciation) $ (119.0) $ 44.0
Interest Rate Swap One    
Company Receives 6.875% 6.875%
Company Pays 2.754% 2.754%
Notional Amount $ 200.0 $ 200.0
Fair Value (4.0) 8.0
Upfront Payments/Receipts 0.0 0.0
Change in Unrealized Appreciation/(Depreciation) $ (12.0) $ 3.0
Interest Rate Swap Two    
Company Receives 6.875% 6.875%
Company Pays 2.788% 2.788%
Notional Amount $ 400.0 $ 400.0
Fair Value (8.0) 16.0
Upfront Payments/Receipts 0.0 0.0
Change in Unrealized Appreciation/(Depreciation) $ (24.0) $ 6.0
Interest Rate Swap Three    
Company Receives 6.125% 6.125%
Company Pays 2.137% 2.137%
Notional Amount $ 600.0 $ 600.0
Fair Value (9.0) 27.0
Upfront Payments/Receipts 0.0 0.0
Change in Unrealized Appreciation/(Depreciation) $ (36.0) $ 27.0
Interest Rate Swap Four    
Company Receives 6.125% 6.125%
Company Pays 2.061% 2.061%
Notional Amount $ 100.0 $ 100.0
Fair Value (1.0) 5.0
Upfront Payments/Receipts 0.0 0.0
Change in Unrealized Appreciation/(Depreciation) $ (6.0) $ 5.0
Interest Rate Swap Five    
Company Receives 6.125% 6.125%
Company Pays 2.748% 2.748%
Notional Amount $ 400.0 $ 400.0
Fair Value (19.0) 3.0
Upfront Payments/Receipts 0.0 0.0
Change in Unrealized Appreciation/(Depreciation) $ (22.0) $ 3.0
Interest Rate Swap Six    
Company Receives 7.50%  
Company Pays 3.488%  
Notional Amount $ 900.0  
Fair Value (19.0)  
Upfront Payments/Receipts 0.0  
Change in Unrealized Appreciation/(Depreciation) $ (19.0)  
[1] Security may be an obligation of one or more entities affiliated with the named company.
[2] Security may be an obligation of one or more entities affiliated with the named company.
[3] See Note 8 for additional information regarding the fair value of the Company’s financial instruments.
[4] See Note 8 for additional information regarding the fair value of the Company’s financial instruments.