v3.26.1
Financial Highlights (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Dec. 09, 2021
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Supplemental Data:          
Net assets, end of period   $ 2,835,157 $ 3,245,870 $ 3,580,148 $ 3,008,080
Class S          
Per share data:          
Net asset value, at beginning of period (in USD per share)   $ 10.38 $ 10.42    
Net investment income (in USD per share)   0.19 0.23    
Net realized and unrealized gain (loss) (in USD per share)   (0.55) (0.09)    
Net increase (decrease) in net assets resulting from operations (in USD per share)   (0.36) 0.14    
Net increase (decrease) in net assets from shareholders' distributions (in USD per share)   (0.20) (0.22)    
Total increase (decrease) in net assets (in USD per share)   (0.56) (0.08)    
Net asset value, at end of period (in USD per share)   $ 9.82 $ 10.34    
Total Return   (3.50%) 1.40%    
Ratios:          
Ratio of net expenses to average net assets   9.60% 9.10%    
Ratio of net investment income to average net assets   7.50% 9.00%    
Portfolio turnover rate   3.00% 15.00%    
Supplemental Data:          
Weighted-average shares outstanding (in shares)   82,345,091 75,522,643    
Shares outstanding, end of period (in shares)   78,618,170 77,746,234 90,973,724  
Investment company, subject to maximum upfront sales load 3.50% 3.50% 3.50%    
Investment company, expense ratio after incentive allocation (as a percent)   9.60% 9.10%    
Class S | Common equity investments          
Supplemental Data:          
Net assets, end of period   $ 771,835 $ 803,727    
Class D          
Per share data:          
Net asset value, at beginning of period (in USD per share)   $ 10.38 $ 10.42    
Net investment income (in USD per share)   0.19 0.24    
Net realized and unrealized gain (loss) (in USD per share)   (0.51) (0.08)    
Net increase (decrease) in net assets resulting from operations (in USD per share)   (0.32) 0.16    
Net increase (decrease) in net assets from shareholders' distributions (in USD per share)   (0.22) (0.24)    
Total increase (decrease) in net assets (in USD per share)   (0.54) (0.08)    
Net asset value, at end of period (in USD per share)   $ 9.82 $ 10.34    
Total Return   (3.30%) 1.50%    
Ratios:          
Ratio of net expenses to average net assets   7.50% 8.40%    
Ratio of net investment income to average net assets   5.50% 9.70%    
Portfolio turnover rate   3.00% 15.00%    
Supplemental Data:          
Weighted-average shares outstanding (in shares)   1,168,186 1,620,453    
Shares outstanding, end of period (in shares)   1,057,333 1,651,661 2,059,316  
Investment company, subject to maximum upfront sales load 1.50% 1.50% 1.50%    
Investment company, expense ratio after incentive allocation (as a percent)   7.50% 8.40%    
Class D | Common equity investments          
Supplemental Data:          
Net assets, end of period   $ 10,378 $ 17,074    
Class I          
Per share data:          
Net asset value, at beginning of period (in USD per share)   $ 10.38 $ 10.42    
Net investment income (in USD per share)   0.21 0.25    
Net realized and unrealized gain (loss) (in USD per share)   (0.55) (0.09)    
Net increase (decrease) in net assets resulting from operations (in USD per share)   (0.34) 0.16    
Net increase (decrease) in net assets from shareholders' distributions (in USD per share)   (0.22) (0.24)    
Total increase (decrease) in net assets (in USD per share)   (0.56) (0.08)    
Net asset value, at end of period (in USD per share)   $ 9.82 $ 10.34    
Total Return   (3.30%) 1.60%    
Ratios:          
Ratio of net expenses to average net assets   8.70% 8.20%    
Ratio of net investment income to average net assets   8.10% 9.90%    
Portfolio turnover rate   3.00% 15.00%    
Supplemental Data:          
Weighted-average shares outstanding (in shares)   220,856,101 231,435,849    
Shares outstanding, end of period (in shares)   209,102,637 234,553,372 251,904,595  
Investment company, expense ratio after incentive allocation (as a percent)   8.70% 8.20%    
Class I | Common equity investments          
Supplemental Data:          
Net assets, end of period   $ 2,052,944 $ 2,425,069