v3.26.1
Debt - CLOs (Details) - USD ($)
Dec. 16, 2025
Oct. 15, 2025
Oct. 08, 2025
Aug. 15, 2024
Dec. 13, 2023
Aug. 23, 2023
Dec. 16, 2020
Mar. 31, 2026
Dec. 31, 2025
Preferred equity investments | Athena CLO II                  
Debt Instrument [Line Items]                  
Issuance of common shares         $ 187,300,000   $ 133,500,000    
Shares issued (in shares)         187,300   133,500    
Issue price (in USD per share)         $ 1,000   $ 1,000    
Preferred equity investments | Athena CLO V                  
Debt Instrument [Line Items]                  
Issuance of common shares     $ 201,300,000            
Shares issued (in shares)     201,320            
Issue price (in USD per share)     $ 1,000            
Preferred equity investments | Athena CLO II Refinancing Class A-LR Loans                  
Debt Instrument [Line Items]                  
Issuance of common shares $ 52,800,000                
Shares issued (in shares) 52,800                
Issue price (in USD per share) $ 1,000                
Preferred outstanding (in shares) 240,100                
Preferred equity investments | Athena CLO IV                  
Debt Instrument [Line Items]                  
Issuance of common shares       $ 159,700,000          
Shares issued (in shares)       159,700          
Issue price (in USD per share)       $ 1,000          
Middle Market Loans | CLO 2020-1 [Member]                  
Debt Instrument [Line Items]                  
Aggregate principal committed           $ 243,400,000 $ 243,400,000    
Middle Market Loans | Athena Funding I LLC                  
Debt Instrument [Line Items]                  
Aggregate principal committed       $ 182,400,000 $ 380,600,000        
Middle Market Loans | Athena CLO V                  
Debt Instrument [Line Items]                  
Aggregate principal committed     $ 447,700,000            
Middle Market Loans | Athena CLO IV                  
Debt Instrument [Line Items]                  
Aggregate principal committed $ 217,963,000     215,500,000          
Middle Market Loans | Athena CLO II                  
Debt Instrument [Line Items]                  
Aggregate principal committed 83,945,000       83,900,000        
CLO 2020-1 [Member] | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed             $ 333,500,000    
Basis spread on variable rate             2.95%    
Debt instrument, repurchase amount   $ 204,000,000.0              
Debt instrument, percentage of principal amount redeemed   100.00%              
CLO 2020-1 A | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed             $ 200,000,000    
CLO 2020-1 Refinancing | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed           337,500,000      
CLO 2020-1 Refinancing | Middle Market Loans | Athena Funding I LLC                  
Debt Instrument [Line Items]                  
Aggregate principal committed           83,930,000      
CLO 2020-1 Refinancing AAA(sf) Class A-1R Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed           $ 112,500,000      
Basis spread on variable rate           3.05%      
CLO 2020-1 Refinancing AAA(sf) Class A-2R Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed           $ 23,500,000      
Basis spread on variable rate           6.937%      
CLO 2020-1 Refinancing A(sf) Class B-1R Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed           $ 53,000,000      
Interest rate, stated percentage           4.64%      
CLO 2020-1 Refinancing A(sf) Class B-2R Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed           $ 15,000,000      
Basis spread on variable rate           8.497%      
Athena CLO V | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed     501,300,000         $ 300,000,000 $ 300,000,000
Athena CLO V Class A Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed     $ 260,000,000            
Basis spread on variable rate     1.73%            
Athena CLO V Class B-1 Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed     $ 25,000,000            
Basis spread on variable rate     2.25%            
Athena CLO V Class C Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed     $ 15,000,000            
Interest rate, stated percentage     2.70%            
Athena CLO II | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed         475,300,000     375,000,000 375,000,000
Athena CLO II Class A Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed         $ 40,000,000.0        
Basis spread on variable rate         2.85%        
Athena CLO II AA(sf) Class B-1 Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed         $ 16,500,000        
Basis spread on variable rate         3.95%        
Athena CLO II AA(sf) Class B-2 Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed         $ 7,500,000        
Interest rate, stated percentage         7.25%        
Athena CLO II AA(sf) Class C Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed         $ 24,000,000.0        
Basis spread on variable rate         4.95%        
Athena CLO II Class A-L Loans | Secured Debt                  
Debt Instrument [Line Items]                  
Basis spread on variable rate         2.85%        
Aggregate principal committed 250,000,000       $ 200,000,000.0        
Athena CLO II Refinancing | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed 615,100,000                
Athena CLO II AAA(sf) Class A-R Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed $ 75,000,000                
Basis spread on variable rate 1.70%                
Athena CLO II AA(sf) Class B-R Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed $ 31,250,000                
Basis spread on variable rate 2.00%                
Athena CLO II A(sf) Class C-R Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed $ 18,750,000                
Basis spread on variable rate 2.40%                
Athena CLO II Refinancing Class A-LR Loans | Secured Debt                  
Debt Instrument [Line Items]                  
Basis spread on variable rate 1.70%                
Athena CLO IV | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed       399,700,000       $ 240,000,000 $ 240,000,000
Athena CLO IV Class A Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed       $ 208,000,000          
Basis spread on variable rate       2.00%          
Athena CLO IV Class B-1 Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed       $ 7,000,000.0          
Basis spread on variable rate       2.50%          
Athena CLO IV Class B-2 Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed       $ 13,000,000.0          
Interest rate, stated percentage       6.254%          
Athena CLO IV Class C Notes | Secured Debt                  
Debt Instrument [Line Items]                  
Aggregate principal committed       $ 12,000,000          
Basis spread on variable rate       2.64%