v3.26.1
SLR Senior Lending Program LLC - Summary financial information for SSLP (Parenthetical) (Details) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Condensed Financial Statements, Captions [Line Items]    
Cost $ 2,143,830 $ 2,154,739
Debt instrument, face amount 1,145,443 1,154,436
Debt issuance costs 7,236 8,082
SLR Senior Lending Program LLC [Member]    
Condensed Financial Statements, Captions [Line Items]    
Cost 187,607 180,681
Debt instrument, face amount 96,500 94,500
Debt issuance costs $ 1,748 $ 1,843