Quarterly report [Sections 13 or 15(d)]

FINANCIAL HIGHLIGHTS (Details)

v3.25.3
FINANCIAL HIGHLIGHTS (Details) - USD ($)
 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Jun. 30, 2025
Mar. 31, 2025
Dec. 31, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Investment Company, Financial Highlights [Roll Forward]                
NAV as of the beginning of the period (in dollars per share) $ 15.53 $ 15.54            
Net investment income (in dollars per share) 1.05 1.00            
Net realized gain (loss) (in dollars per share) (0.56) 0.59            
Net unrealized appreciation (depreciation) (in dollars per share) 0.77 (0.61)            
Income tax benefit (provision) on net realized gain (loss) and net unrealized appreciation (depreciation) (in dollars per share) 0.01 (0.08)            
Net increase in net assets resulting from operations (in dollars per share) 1.27 0.90            
Dividends paid from net investment income (in dollars per share) (1.08) (0.76)            
Distributions paid from capital gains (in dollars per share) 0 (0.33)            
Distributions paid or accrued (in dollars per share) (1.08) (1.09)            
Accretive effect of stock repurchases (repurchasing shares below NAV per share) (in dollars per share) 0 0.02            
Dilutive effect of stock offerings (issuing shares below NAV per share) (in dollars per share) (0.16) 0            
Other (in dollars per share) (0.02) 0.01            
NAV as of the end of the period (in dollars per share) 15.54 $ 15.38            
Market value as of the end of the period (in dollars per share) $ 13.13              
Shares outstanding as of the end of the period (in shares) 47,268,027 40,217,446            
NAV as of the end of the period $ 734,358,000 $ 618,485,000 $ 722,788,000 $ 718,940,000 $ 624,903,000 $ 623,175,000 $ 618,521,000 $ 622,307,000
Average NAV 700,247,000 620,622,000            
Average outstanding debt $ 541,875,000 $ 512,088,000            
Ratios to average NAV:                
Ratio of total expenses, including tax expenses, to average NAV (as a percent) 7.90% 10.38%            
Ratio of operating expenses to average NAV (as a percent) 7.58% 9.39%            
Ratio of operating expenses excluding interest expense, to average NAV (as a percent) 3.93% 4.64%            
Ratio of operating expenses, excluding interest expense and incentive fees to average NAV (as a percent) 2.68% 3.13%            
Ratio of net investment income to average NAV (as a percent) 6.94% 6.50%            
Portfolio turnover ratio (as a percent) 17.49% 18.54%            
Total investment return (as a percent) (9.39%)              
Total return based on change in NAV (as a percent) 9.39% 6.41%            
Purchase of stock at the public offering price (in dollars per share) $ 15.53              
Expense waivers   $ 6,700,000            
Internal administrative services expense waived $ 0              
Investment Company, Ratio To Average Net Assets Excluding Expense Waivers                
Ratio of total expenses, including tax expenses, to average NAV (as a percent)   11.49%            
Ratio of operating expenses to average NAV (as a percent)   10.49%            
Ratio of operating expenses, excluding interest expense, to average NAV (as a percent)   5.73%            
Ratio of operating expenses, excluding interest expense and incentive fees, to average NAV (as a percent)   0.0422            
Ratio of net investment income to average NAV (as a percent)   5.44%