v3.26.3
NET ASSETS - Schedule of Transactions in Common Shares of Beneficial Interest (Details) - USD ($)
shares in Thousands, $ in Thousands
 1 Months Ended 3 Months Ended 9 Months Ended
Aug. 31, 2026
Feb. 27, 2026
Aug. 31, 2025
May 31, 2025
Feb. 28, 2025
May 31, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Investment Company, Changes in Net Assets [Line Items]                    
Repurchased shares, net of early repurchase deduction (in shares) (19,264) (19,545) (2,943) (5,281) (1,093) (19,767)        
Repurchased shares, net of early repurchase deduction $ (515,098) $ (524,026) $ (80,915) $ (144,586) $ (29,969) $ (533,646)        
Net increase (decrease) (in shares)             (10,778) 62,276 (10,858) 154,814
Net increase (decrease) in net assets from share transactions             $ (288,522) $ 1,714,365 $ (282,988) $ 4,257,607
Class I                    
Investment Company, Changes in Net Assets [Line Items]                    
Subscriptions (in shares)             4,737 54,370 32,833 126,614
Share transfers between classes (in shares)             264 (102) 718 90
Distributions reinvested (in shares)             1,652 1,613 5,198 4,810
Distributions reinvested             $ 44,111 $ 44,396 $ 140,083 $ 132,122
Repurchased shares, net of early repurchase deduction (in shares)             (17,450) (2,162) (53,273) (7,280)
Repurchased shares, net of early repurchase deduction             $ (466,598) $ (59,456) $ (1,430,398) $ (199,805)
Net increase (decrease) (in shares)             (10,797) 53,719 (14,524) 124,234
Net increase (decrease) in net assets from share transactions             $ (288,973) $ 1,478,876 $ (383,157) $ 3,416,933
Class I | Capital in Excess of Par Value                    
Investment Company, Changes in Net Assets [Line Items]                    
Subscriptions             126,472 1,496,730 887,758 3,482,147
Share transfers between classes             $ 7,042 $ (2,794) $ 19,400 $ 2,469
Class S                    
Investment Company, Changes in Net Assets [Line Items]                    
Subscriptions (in shares)             783 4,913 3,876 15,480
Share transfers between classes (in shares)             (106) (63) (424) (255)
Distributions reinvested (in shares)             329 252 966 653
Distributions reinvested             $ 8,779 $ 6,911 $ 26,029 $ 17,915
Repurchased shares, net of early repurchase deduction (in shares)             (762) (247) (2,242) (877)
Repurchased shares, net of early repurchase deduction             $ (20,371) $ (6,770) $ (60,162) $ (23,982)
Net increase (decrease) (in shares)             244 4,855 2,176 15,001
Net increase (decrease) in net assets from share transactions             $ 6,499 $ 133,606 $ 59,212 $ 412,407
Class S | Capital in Excess of Par Value                    
Investment Company, Changes in Net Assets [Line Items]                    
Subscriptions             20,919 135,184 104,844 425,456
Share transfers between classes             $ (2,828) $ (1,719) $ (11,499) $ (6,982)
Class D                    
Investment Company, Changes in Net Assets [Line Items]                    
Subscriptions (in shares)             674 3,830 3,895 16,030
Share transfers between classes (in shares)             (158) 165 (294) 165
Distributions reinvested (in shares)             311 241 950 544
Distributions reinvested             $ 8,295 $ 6,629 $ 25,604 $ 14,935
Repurchased shares, net of early repurchase deduction (in shares)             (1,052) (534) (3,061) (1,160)
Repurchased shares, net of early repurchase deduction             $ (28,129) $ (14,689) $ (82,209) $ (31,683)
Net increase (decrease) (in shares)             (225) 3,702 1,490 15,579
Net increase (decrease) in net assets from share transactions             $ (6,048) $ 101,883 $ 40,957 $ 428,267
Class D | Capital in Excess of Par Value                    
Investment Company, Changes in Net Assets [Line Items]                    
Subscriptions             18,000 105,430 105,463 440,502
Share transfers between classes             $ (4,214) $ 4,513 $ (7,901) $ 4,513