v3.26.1
Net Assets - Schedule of Dividend Declarations and Distributions (Details) - USD ($)
$ / shares in Units, $ in Thousands
9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Sep. 30, 2025
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 185,108,156   161,326,430
Common Class I      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 176,261,880 114,728,035 153,882,766
Total Distribution Per Share (in dollars per share) $ 1.69 $ 1.73  
Total Dividends Declared $ 291,649 $ 154,298  
Common Class I | O 2026 M1 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 160,305,396    
Regular Distribution Per Share (in dollars per share) $ 0.1875    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1875    
Total Dividends Declared $ 30,055    
Common Class I | O 2026 M2 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 164,917,320    
Regular Distribution Per Share (in dollars per share) $ 0.1875    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1875    
Total Dividends Declared $ 30,922    
Common Class I | O 2026 M3 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 169,195,375    
Regular Distribution Per Share (in dollars per share) $ 0.1875    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1875    
Total Dividends Declared $ 31,724    
Common Class I | O 2026 M4 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 172,864,976    
Regular Distribution Per Share (in dollars per share) $ 0.1875    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1875    
Total Dividends Declared $ 32,412    
Common Class I | O 2026 M5 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 175,889,215    
Regular Distribution Per Share (in dollars per share) $ 0.1875    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1875    
Total Dividends Declared $ 32,980    
Common Class I | O 2026 M6 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 179,571,695    
Regular Distribution Per Share (in dollars per share) $ 0.1875    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1875    
Total Dividends Declared $ 33,670    
Common Class I | O 2026 M7 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 181,808,746    
Regular Distribution Per Share (in dollars per share) $ 0.1875    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1875    
Total Dividends Declared $ 34,089    
Common Class I | O 2026 M8 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 174,657,510    
Regular Distribution Per Share (in dollars per share) $ 0.1875    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1875    
Total Dividends Declared $ 32,748    
Common Class I | O 2026 M9 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 176,261,880    
Regular Distribution Per Share (in dollars per share) $ 0.1875    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1875    
Total Dividends Declared $ 33,049    
Common Class I | O 2025 M1 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   70,286,774  
Regular Distribution Per Share (in dollars per share)   $ 0.2200  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.2200  
Total Dividends Declared   $ 15,463  
Common Class I | O 2025 M2 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   73,471,107  
Regular Distribution Per Share (in dollars per share)   $ 0.1875  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1875  
Total Dividends Declared   $ 13,776  
Common Class I | O 2025 M3 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   77,769,569  
Regular Distribution Per Share (in dollars per share)   $ 0.1875  
Special Distribution Per Share (in dollars per share)   0.0050  
Total Distribution Per Share (in dollars per share)   $ 0.1925  
Total Dividends Declared   $ 14,971  
Common Class I | O 2025 M4 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   81,622,147  
Regular Distribution Per Share (in dollars per share)   $ 0.1875  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1875  
Total Dividends Declared   $ 15,305  
Common Class I | O 2025 M5 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   86,802,913  
Regular Distribution Per Share (in dollars per share)   $ 0.1875  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1875  
Total Dividends Declared   $ 16,276  
Common Class I | O 2025 M6 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   93,061,716  
Regular Distribution Per Share (in dollars per share)   $ 0.1875  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1875  
Total Dividends Declared   $ 17,449  
Common Class I | O 2025 M7 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   102,268,310  
Regular Distribution Per Share (in dollars per share)   $ 0.1875  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1875  
Total Dividends Declared   $ 19,175  
Common Class I | O 2025 M8 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   108,654,328  
Regular Distribution Per Share (in dollars per share)   $ 0.1875  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1875  
Total Dividends Declared   $ 20,372  
Common Class I | O 2025 M9 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   114,728,035  
Regular Distribution Per Share (in dollars per share)   $ 0.1875  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1875  
Total Dividends Declared   $ 21,511  
Common Class S      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 8,846,276 5,997,598 7,443,664
Total Distribution Per Share (in dollars per share) $ 1.53 $ 1.57  
Total Dividends Declared $ 13,267 $ 6,837  
Common Class S | O 2026 M1 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 7,957,633    
Regular Distribution Per Share (in dollars per share) $ 0.1697    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1697    
Total Dividends Declared $ 1,352    
Common Class S | O 2026 M2 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 8,477,229    
Regular Distribution Per Share (in dollars per share) $ 0.1697    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1697    
Total Dividends Declared $ 1,439    
Common Class S | O 2026 M3 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 8,628,628    
Regular Distribution Per Share (in dollars per share) $ 0.1697    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1697    
Total Dividends Declared $ 1,464    
Common Class S | O 2026 M4 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 8,838,805    
Regular Distribution Per Share (in dollars per share) $ 0.1697    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1697    
Total Dividends Declared $ 1,500    
Common Class S | O 2026 M5 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 8,606,052    
Regular Distribution Per Share (in dollars per share) $ 0.1698    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1698    
Total Dividends Declared $ 1,461    
Common Class S | O 2026 M6 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 8,893,685    
Regular Distribution Per Share (in dollars per share) $ 0.1701    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1701    
Total Dividends Declared $ 1,513    
Common Class S | O 2026 M7 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 9,011,153    
Regular Distribution Per Share (in dollars per share) $ 0.1704    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1704    
Total Dividends Declared $ 1,536    
Common Class S | O 2026 M8 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 8,774,684    
Regular Distribution Per Share (in dollars per share) $ 0.1704    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1704    
Total Dividends Declared $ 1,495    
Common Class S | O 2026 M9 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares) 8,846,276    
Regular Distribution Per Share (in dollars per share) $ 0.1703    
Special Distribution Per Share (in dollars per share) 0    
Total Distribution Per Share (in dollars per share) $ 0.1703    
Total Dividends Declared $ 1,507    
Common Class S | O 2025 M1 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   3,007,320  
Regular Distribution Per Share (in dollars per share)   $ 0.2022  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.2022  
Total Dividends Declared   $ 608  
Common Class S | O 2025 M2 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   3,243,641  
Regular Distribution Per Share (in dollars per share)   $ 0.1697  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1697  
Total Dividends Declared   $ 551  
Common Class S | O 2025 M3 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   3,453,828  
Regular Distribution Per Share (in dollars per share)   $ 0.1697  
Special Distribution Per Share (in dollars per share)   0.0050  
Total Distribution Per Share (in dollars per share)   $ 0.1747  
Total Dividends Declared   $ 603  
Common Class S | O 2025 M4 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   3,886,006  
Regular Distribution Per Share (in dollars per share)   $ 0.1697  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1697  
Total Dividends Declared   $ 660  
Common Class S | O 2025 M5 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   4,196,829  
Regular Distribution Per Share (in dollars per share)   $ 0.1697  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1697  
Total Dividends Declared   $ 712  
Common Class S | O 2025 M6 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   4,840,168  
Regular Distribution Per Share (in dollars per share)   $ 0.1697  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1697  
Total Dividends Declared   $ 822  
Common Class S | O 2025 M7 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   5,439,734  
Regular Distribution Per Share (in dollars per share)   $ 0.1698  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1698  
Total Dividends Declared   $ 923  
Common Class S | O 2025 M8 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   5,538,807  
Regular Distribution Per Share (in dollars per share)   $ 0.1698  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1698  
Total Dividends Declared   $ 940  
Common Class S | O 2025 M9 Aggregate Dividends      
Subsidiary, Sale of Stock [Line Items]      
Shares Outstanding (in shares)   5,997,599  
Regular Distribution Per Share (in dollars per share)   $ 0.1697  
Special Distribution Per Share (in dollars per share)   0  
Total Distribution Per Share (in dollars per share)   $ 0.1697  
Total Dividends Declared   $ 1,018