v3.26.1
Financial Highlights (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Per share data:    
Net asset value at beginning of period (in dollars per share) $ 9.87 $ 10.37
Net investment income (in dollars per share) 0.23 0.25
Net gain (loss) (in dollars per share) (0.10) (0.03)
Net increase (decrease) in net assets resulting from operations (in dollars per share) 0.13 0.22
Stockholder distributions declared (in dollars per share) (0.22) (0.27)
Other (in dollars per share) 0 0.01
Net asset value at end of period (in dollars per share) $ 9.78 $ 10.33
Total return based on average net asset value 1.33% 2.21%
Ratio/Supplemental data:    
Net assets at end of period $ 2,783,366 $ 2,442,671
Shares outstanding at end of period 284,582,018 236,563,264
Portfolio turnover 6.48% 4.96%
Ratio of total investment income to average net assets 21.61% 20.49%
Ratio of expenses to average net assets without waivers 11.39%  
Ratio of expenses to average net assets with waivers and expense reimbursement 10.85% 10.53%
Ratio of net investment income to average net assets without waivers 10.22%  
Ratio of net investment income to average net assets 10.77% 9.96%