v3.26.3
Consolidated Schedule of Investments - Interest Rate Swaps and Forward Contracts (Parenthetical)
€ in Thousands, £ in Thousands, $ in Thousands, $ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2026
USD ($)
Sep. 30, 2026
USD ($)
Dec. 31, 2025
USD ($)
Sep. 30, 2026
AUD ($)
Sep. 30, 2026
CAD ($)
Sep. 30, 2026
EUR (€)
Sep. 30, 2026
GBP (£)
Dec. 31, 2025
AUD ($)
Dec. 31, 2025
EUR (€)
Dec. 31, 2025
GBP (£)
Schedule of Investments [Line Items]                    
Unrealized Appreciation (Depreciation)(b) $ 0 $ 0                
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 1                    
Schedule of Investments [Line Items]                    
Notional Amount 1,452,000 1,452,000 $ 126,248,000 $ 2,080           £ 94,190
Unrealized Appreciation (Depreciation)(b)   7,000 [1] (668,000)              
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 10                    
Schedule of Investments [Line Items]                    
Notional Amount 19,739,000 19,739,000       € 14,775        
Unrealized Appreciation (Depreciation)(b) [1]   (138,000)                
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 11                    
Schedule of Investments [Line Items]                    
Notional Amount 19,850,000 19,850,000       14,856        
Unrealized Appreciation (Depreciation)(b) [1]   129,000                
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 12                    
Schedule of Investments [Line Items]                    
Notional Amount 224,061,000 224,061,000         £ 194,570      
Unrealized Appreciation (Depreciation)(b) [1]   1,964,000                
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 2                    
Schedule of Investments [Line Items]                    
Notional Amount 83,423,000 83,423,000 19,549,000   $ 114,516         £ 14,775
Unrealized Appreciation (Depreciation)(b)   2,902,000 (359,000)              
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 3                    
Schedule of Investments [Line Items]                    
Notional Amount 19,404,000 19,404,000 247,528,000   $ 26,749       € 208,670  
Unrealized Appreciation (Depreciation)(b)   362,000 256,000              
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 4                    
Schedule of Investments [Line Items]                    
Notional Amount 113,761,000 113,761,000 6,296,000     85,144     € 5,301  
Unrealized Appreciation (Depreciation)(b)   (804,000) [1] 15,000              
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 5                    
Schedule of Investments [Line Items]                    
Notional Amount 113,778,000 113,778,000 1,685,000     85,144   $ 2,580    
Unrealized Appreciation (Depreciation)(b)   749,000 [1] (37,000)              
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 6                    
Schedule of Investments [Line Items]                    
Notional Amount 114,231,000 114,231,000       85,144        
Unrealized Appreciation (Depreciation)(b) [1]   1,273,000                
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 7                    
Schedule of Investments [Line Items]                    
Notional Amount 20,385,000 20,385,000         17,348      
Unrealized Appreciation (Depreciation)(b) [1]   574,000                
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 8                    
Schedule of Investments [Line Items]                    
Notional Amount 31,882,000 31,882,000         £ 27,630      
Unrealized Appreciation (Depreciation)(b) [1]   342,000                
Open Swap Contract, Identifier [Axis]: Foreign currency forward contract 9                    
Schedule of Investments [Line Items]                    
Notional Amount $ 19,774,000 19,774,000       € 14,775        
Unrealized Appreciation (Depreciation)(b) [1]   173,000                
Open Swap Contract, Identifier [Axis]: Foreign currency forward contracts                    
Schedule of Investments [Line Items]                    
Unrealized Appreciation (Depreciation)(b)   $ 7,533,000 [1] $ (793,000)              
Derivative, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration]   Unrealized Appreciation (Depreciation)(b)                
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, 2027 Notes                    
Schedule of Investments [Line Items]                    
Fixed interest rate 2.63% 2.63% 2.63% 2.63% 2.63% 2.63% 2.63% 2.63% 2.63% 2.63%
Basis spread on variable rate     1.769%         1.769% 1.769% 1.769%
Basis spread on variable rate (0.907%) (0.907%)   (0.907%) (0.907%) (0.907%) (0.907%)      
Notional Amount $ 500,000,000 $ 500,000,000 $ 500,000,000              
Fair Value $ (914,000) (914,000) (13,370,000)              
Upfront Payments/Receipts   0 0              
Unrealized Appreciation (Depreciation)(b)   $ (914,000) $ 18,461,000              
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, 2029 Notes                    
Schedule of Investments [Line Items]                    
Fixed interest rate 5.95% 5.95% 5.95% 5.95% 5.95% 5.95% 5.95% 5.95% 5.95% 5.95%
Basis spread on variable rate 2.255% 2.255% 2.255% 2.255% 2.255% 2.255% 2.255% 2.255% 2.255% 2.255%
Notional Amount $ 600,000,000 $ 600,000,000 $ 600,000,000              
Fair Value $ (16,909,000) (16,909,000) 3,645,000              
Upfront Payments/Receipts   0 0              
Unrealized Appreciation (Depreciation)(b)   $ (16,909,000) $ 8,799,000              
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, 2029 Notes 1                    
Schedule of Investments [Line Items]                    
Fixed interest rate 5.95% 5.95% 5.95% 5.95% 5.95% 5.95% 5.95% 5.95% 5.95% 5.95%
Basis spread on variable rate 1.922% 1.922% 1.922% 1.922% 1.922% 1.922% 1.922% 1.922% 1.922% 1.922%
Notional Amount $ 400,000,000 $ 400,000,000 $ 400,000,000              
Fair Value $ (7,127,000) (7,127,000) 7,185,000              
Upfront Payments/Receipts   0 0              
Unrealized Appreciation (Depreciation)(b)   $ (7,127,000) $ 8,441,000              
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, 2030 Notes                    
Schedule of Investments [Line Items]                    
Fixed interest rate 6.20% 6.20% 6.20% 6.20% 6.20% 6.20% 6.20% 6.20% 6.20% 6.20%
Basis spread on variable rate 2.392% 2.392% 2.392% 2.392% 2.392% 2.392% 2.392% 2.392% 2.392% 2.392%
Notional Amount $ 500,000,000 $ 500,000,000 $ 500,000,000              
Fair Value $ (18,687,000) (18,687,000) 5,663,000              
Upfront Payments/Receipts   0 0              
Unrealized Appreciation (Depreciation)(b)   $ (18,687,000) 5,663,000              
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, 2031 Notes                    
Schedule of Investments [Line Items]                    
Fixed interest rate 6.30% 6.30%   6.30% 6.30% 6.30% 6.30%      
Basis spread on variable rate 2.209% 2.209%   2.209% 2.209% 2.209% 2.209%      
Notional Amount $ 400,000,000 $ 400,000,000                
Fair Value $ (13,731,000) (13,731,000)                
Upfront Payments/Receipts   0                
Unrealized Appreciation (Depreciation)(b)   $ (13,731,000)                
Open Swap Contract, Identifier [Axis]: Interest Rate Swap, September 2028 Notes                    
Schedule of Investments [Line Items]                    
Fixed interest rate 6.45% 6.45%   6.45% 6.45% 6.45% 6.45%      
Basis spread on variable rate 2.664% 2.664%   2.664% 2.664% 2.664% 2.664%      
Notional Amount $ 400,000,000 $ 400,000,000                
Fair Value (8,685,000) (8,685,000)                
Upfront Payments/Receipts   0                
Unrealized Appreciation (Depreciation)(b)   (8,685,000)                
Open Swap Contract, Identifier [Axis]: Interest Rate Swaps                    
Schedule of Investments [Line Items]                    
Notional Amount 2,800,000,000 2,800,000,000 2,000,000,000              
Fair Value $ (66,053,000) (66,053,000) 3,123,000              
Unrealized Appreciation (Depreciation)(b)   $ (66,053,000) $ 41,364,000              
[1] Amounts are presented in accordance with Regulation S-X 17 CFR § 210.12-13B. Refer to “Note 7 — Derivative Instruments” for additional details on the Company’s foreign currency forward contracts.