v3.26.1
Commitments and Contingencies - Additional Information (Details)
$ in Millions
 3 Months Ended 12 Months Ended
Mar. 31, 2026
USD ($)
Equipment
Mar. 31, 2025
USD ($)
Dec. 31, 2025
USD ($)
Equipment
Commitments And Contingencies [Line Items]      
Outstanding refunded commitments $ 72.8   $ 82.3
Number of portfolio companies unfunded commitments | Equipment 11   10
Total lease expense $ 0.5 $ 0.4  
Right of use asset $ 7.6   $ 7.6
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Other Assets   Other Assets
Lease liability $ 8.1   $ 8.0
Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Accounts Payable And Other Accrued Liabilities   Accounts Payable And Other Accrued Liabilities
Senior Credit Corp      
Commitments And Contingencies [Line Items]      
Outstanding refunded commitments $ 3.0   $ 3.0
Capital commitments 21.4    
Direct Lending      
Commitments And Contingencies [Line Items]      
Outstanding refunded commitments 84.2   $ 85.1
Capital commitments 100.0    
CapTrin      
Commitments And Contingencies [Line Items]      
Outstanding refunded commitments 50.0    
Capital commitments 50.0    
SBIC LP      
Commitments And Contingencies [Line Items]      
Outstanding refunded commitments 5.0    
Capital commitments $ 5.0    
San Diego Office      
Commitments And Contingencies [Line Items]      
Remaining lease term 4 years 10 months 24 days   5 years 2 months 12 days
Discount rates 7.95%   7.96%