v3.26.1
Financial Highlights (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Dec. 31, 2024
Supplemental Data:        
Net Assets, End of Period $ 19,147,147 $ 16,269,592 $ 19,760,273 $ 14,521,602
Class S        
Per share data:        
Net asset value per share, beginning balance (in usd per share) $ 9.32 $ 9.54    
Results of operations:        
Net investment income (in usd per share) 0.18 0.21    
Net realized and unrealized gain (loss) (in usd per share) (0.23) (0.07)    
Net increase (decrease) in net assets resulting from operations (in usd per share) (0.05) 0.14    
Distributions:        
Distributions from net investment income (in usd per share) (0.18) (0.21)    
Distributions in excess of net investment income (in usd per share) (0.01) (0.01)    
Net increase (decrease) in net assets from shareholders' distributions (in usd per share) (0.19) (0.22)    
Total increase (decrease) in net assets (in usd per share) (0.24) (0.08)    
Net asset value per share, ending balance (in usd per share) $ 9.08 $ 9.46    
Total return (in percent) (0.50%) 1.50%    
Ratios:        
Ratio of net expenses to average net assets 9.00% 9.40%    
Ratio of net investments income to average net assets 8.20% 9.20%    
Portfolio turnover rate 7.40% 9.20%    
Supplemental Data:        
Weighted-average shares outstanding, basic (in shares) 685,644,136 553,435,797    
Shares outstanding, end of period (in shares) 672,389,216 570,264,051 672,364,767  
Maximum upfront sales load (in percent) 3.50%      
Ratio of total expenses to average net assets 9.00% 9.40%    
Class S | Common        
Supplemental Data:        
Net Assets, End of Period $ 6,104,216 $ 5,394,691    
Class D        
Per share data:        
Net asset value per share, beginning balance (in usd per share) $ 9.33 $ 9.55    
Results of operations:        
Net investment income (in usd per share) 0.19 0.22    
Net realized and unrealized gain (loss) (in usd per share) (0.23) (0.06)    
Net increase (decrease) in net assets resulting from operations (in usd per share) (0.04) 0.16    
Distributions:        
Distributions from net investment income (in usd per share) (0.20) (0.22)    
Distributions in excess of net investment income (in usd per share) (0.01) (0.02)    
Net increase (decrease) in net assets from shareholders' distributions (in usd per share) (0.21) (0.24)    
Total increase (decrease) in net assets (in usd per share) (0.25) (0.08)    
Net asset value per share, ending balance (in usd per share) $ 9.09 $ 9.47    
Total return (in percent) (0.40%) 1.70%    
Ratios:        
Ratio of net expenses to average net assets 8.50% 8.70%    
Ratio of net investments income to average net assets 9.00% 9.70%    
Portfolio turnover rate 7.40% 9.20%    
Supplemental Data:        
Weighted-average shares outstanding, basic (in shares) 60,624,074 54,656,440    
Shares outstanding, end of period (in shares) 56,167,136 57,227,131 60,142,943  
Maximum upfront sales load (in percent) 1.50%      
Ratio of total expenses to average net assets 8.50% 8.80%    
Class D | Common        
Supplemental Data:        
Net Assets, End of Period $ 510,466 $ 541,939    
Class I        
Per share data:        
Net asset value per share, beginning balance (in usd per share) $ 9.34 $ 9.57    
Results of operations:        
Net investment income (in usd per share) 0.20 0.23    
Net realized and unrealized gain (loss) (in usd per share) (0.23) (0.07)    
Net increase (decrease) in net assets resulting from operations (in usd per share) (0.03) 0.16    
Distributions:        
Distributions from net investment income (in usd per share) (0.20) (0.23)    
Distributions in excess of net investment income (in usd per share) (0.01) (0.01)    
Net increase (decrease) in net assets from shareholders' distributions (in usd per share) (0.21) (0.24)    
Total increase (decrease) in net assets (in usd per share) (0.24) (0.08)    
Net asset value per share, ending balance (in usd per share) $ 9.11 $ 9.49    
Total return (in percent) (0.20%) 1.70%    
Ratios:        
Ratio of net expenses to average net assets 8.20% 8.60%    
Ratio of net investments income to average net assets 9.20% 10.10%    
Portfolio turnover rate 7.40% 9.20%    
Supplemental Data:        
Weighted-average shares outstanding, basic (in shares) 1,432,254,151 1,043,162,192    
Shares outstanding, end of period (in shares) 1,376,428,997 1,089,239,943 1,384,490,278  
Ratio of total expenses to average net assets 8.20% 8.60%    
Class I | Common        
Supplemental Data:        
Net Assets, End of Period $ 12,532,465 $ 10,332,962