v3.26.3
FINANCIAL HIGHLIGHTS (Details) - USD ($)
$ / shares in Units, $ in Thousands
 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Investment Company, Financial Highlights [Roll Forward]      
Net asset value at beginning of period (in dollars per share) $ 11.09 $ 11.29  
Net investment income (in dollars per share) 0.78 0.85  
Net realized gain (loss) on investments / CSAs / foreign currency transactions / forward currency contracts (in dollars per share) 0.03 (0.16)  
Net unrealized appreciation (depreciation) on investments / CSAs / foreign currency transactions / forward currency contracts (in dollars per share) (0.21) 0.04  
Total increase (decrease) from investment operations (in dollars per share) 0.60 0.73  
Dividends / distributions paid to stockholders from net investment income (in dollars per share) (0.78) (0.93)  
Deemed contribution - CSA (in dollars per share) 0.01 0  
Purchases of shares in share repurchase plan (in dollars per share) 0 0.01  
Net asset value at end of period (in dollars per share) 10.92 11.10  
Market value at end of period (in dollars per share) $ 8.62 $ 8.76  
Shares outstanding at end of period (in shares) 104,706,884 105,158,938 104,706,884
Net assets at end of period $ 1,143,292 $ 1,166,795  
Average net assets $ 1,168,978 $ 1,193,829  
Ratio of total expenses, including loss on extinguishment of debt and provision for taxes, to average net assets (annualized) 12.32% 13.56%  
Ratio of net investment income to average net assets (annualized) 9.36% 10.03%  
Portfolio turnover ratio (annualized) 17.80% 19.80%  
Total return 2.87% 0.97%