v3.26.1
FAIR VALUE MEASUREMENTS (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
FAIR VALUE MEASUREMENTS    
Investments, fair value $ 569,202 $ 578,649
Debt Investments    
FAIR VALUE MEASUREMENTS    
Investments, fair value 506,279 520,114
First lien secured loans    
FAIR VALUE MEASUREMENTS    
Investments, fair value 413,701 429,573
Second lien secured loans    
FAIR VALUE MEASUREMENTS    
Investments, fair value 4,977 4,839
Unsecured loans    
FAIR VALUE MEASUREMENTS    
Investments, fair value 1,345 1,286
Subordinated Note to STRS JV    
FAIR VALUE MEASUREMENTS    
Investments, fair value 86,256 84,416
Equity (excluding STRS JV)    
FAIR VALUE MEASUREMENTS    
Investments, fair value 62,923 58,535
Equity (excluding STRS JV)    
FAIR VALUE MEASUREMENTS    
Investments, fair value 40,562 36,933
Equity in STRS JV    
FAIR VALUE MEASUREMENTS    
Investments, fair value 22,361 21,602
Level 1    
FAIR VALUE MEASUREMENTS    
Money Market Fair Value 22,964 21,048
Level 2 | Foreign currency forward contracts    
FAIR VALUE MEASUREMENTS    
Investments, fair value 67 323
Level 3    
FAIR VALUE MEASUREMENTS    
Investments, fair value 546,841 557,047
Level 3 | First lien secured loans    
FAIR VALUE MEASUREMENTS    
Investments, fair value 413,701 429,573
Level 3 | Second lien secured loans    
FAIR VALUE MEASUREMENTS    
Investments, fair value 4,977 4,839
Level 3 | Unsecured loans    
FAIR VALUE MEASUREMENTS    
Investments, fair value 1,345 1,286
Level 3 | Subordinated Note to STRS JV    
FAIR VALUE MEASUREMENTS    
Investments, fair value 86,256 84,416
Level 3 | Equity (excluding STRS JV)    
FAIR VALUE MEASUREMENTS    
Investments, fair value $ 40,562 $ 36,933