v3.26.1
DERIVATIVE INSTRUMENTS - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 3 Months Ended 6 Months Ended
Nov. 30, 2023
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Oct. 31, 2025
Oct. 07, 2025
Mar. 27, 2025
Oct. 31, 2024
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   $ 765   $ 765            
Interest rate swap                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   (10,761)   (10,761)   $ 5,737        
Derivative term 5 years                  
Notional amount $ 85,000 600,000   600,000   600,000 $ 300,000     $ 300,000
Derivative, early termination notice period 30 days                  
Derivative, fixed rate 8.20%             5.75%   6.75%
Basis spread on variable rate 3.139%             2.312%   3.235%
Gain (loss) on derivative   264 $ (131) 606 $ (285)          
Open Forward Foreign Currency Contract, Identifier [Axis]: CSL III Merger | Forward Currency Contract | Barclays Bank PLC 1                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   325   325         $ (601)  
Open Forward Foreign Currency Contract, Identifier [Axis]: CSL III Merger | Forward Currency Contract | Barclays Bank PLC 2                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   437   437         (288)  
Open Forward Foreign Currency Contract, Identifier [Axis]: CSL III Merger | Forward Currency Contract | Barclays Bank PLC 3                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   3   3         1  
Open Forward Foreign Currency Contract, Identifier [Axis]: CSL III Merger | Forward Currency Contract | Macquarie Bank Limited 1                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)                 (14)  
Open Forward Foreign Currency Contract, Identifier [Axis]: CSL III Merger | Forward Currency Contract | Macquarie Bank Limited 2                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)                 90  
Open Forward Foreign Currency Contract, Identifier [Axis]: CSL III Merger, Forward Currency Contracts                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)                 $ (812)  
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contract, Barclays Bank PLC 1                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   3   3            
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contract, Barclays Bank PLC 2                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   10   10            
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contract, Barclays Bank PLC 3                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   6   6            
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contract, Barclays Bank PLC 4                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   10   10            
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contract, Barclays Bank PLC 5                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   6   6            
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contract, Barclays Bank PLC 6                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   10   10            
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contract, Barclays Bank PLC 7                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   6   6            
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contract, Barclays Bank PLC 8                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   307   307            
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contract, Barclays Bank PLC 9                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   407   407            
Open Forward Foreign Currency Contract, Identifier [Axis]: Forward Currency Contracts                    
Derivative [Line Items]                    
Change in unrealized appreciation (depreciation)   $ 765   $ 765   $ 0