v3.26.1
Consolidated Statements of Changes in Net Assets (unaudited) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Investment Company, Net Assets [Roll Forward]        
Beginning balance (in shares)     26,772,467.472  
Beginning balance $ 400,280 $ 361,553 $ 401,587 $ 306,194
Issuance of common stock (in shares)     0 4,487,264.732
Issuance of common stock   11,950   $ 67,309
Net increase (decrease) in net assets resulting from operations:        
Net investment income 7,174 7,053 $ 22,260 21,084
Net realized gain (loss) on investment transactions 448 5 221 0
Net change in unrealized appreciation (depreciation) on investment transactions (667) 36 (6,159) 704
Distributions to stockholders:        
Distributions from distributable earnings (losses) (949) (2,219) (11,623) (16,913)
Distributions declared and payable (4,699) (4,875) (4,699) (4,875)
Total increase (decrease) common stock, outstanding value $ 1,307 $ 11,950 $ 0 $ 67,309
Ending balance (in shares) 26,772,467.472 24,900,243.606 26,772,467.472 24,900,243.606
Ending balance $ 401,587 $ 373,503 $ 401,587 $ 373,503
Common Stock        
Investment Company, Net Assets [Roll Forward]        
Beginning balance (in shares) 26,772,467.472 24,103,543.606 26,772,467.472 20,412,978.874
Beginning balance $ 27 $ 24 $ 27 $ 20
Issuance of common stock (in shares)   796,700   4,487,264.732
Issuance of common stock   $ 1   $ 5
Distributions to stockholders:        
Total increase (decrease) common stock, outstanding (in shares) 0 796,700 0 4,487,264.732
Total increase (decrease) common stock, outstanding value $ 0 $ 1 $ 0 $ 5
Ending balance (in shares) 26,772,467.472 24,900,243.606 26,772,467.472 24,900,243.606
Ending balance $ 27 $ 25 $ 27 $ 25
Paid in Capital in Excess of Par        
Investment Company, Net Assets [Roll Forward]        
Beginning balance 401,229 361,256 401,229 305,901
Issuance of common stock   11,949   67,304
Distributions to stockholders:        
Total increase (decrease) common stock, outstanding value 0 11,949 0 67,304
Ending balance 401,229 373,205 401,229 373,205
Distributable Earnings (Losses)        
Investment Company, Net Assets [Roll Forward]        
Beginning balance (976) 273 331 273
Net increase (decrease) in net assets resulting from operations:        
Net investment income 7,174 7,053 22,260 21,084
Net realized gain (loss) on investment transactions 448 5 221  
Net change in unrealized appreciation (depreciation) on investment transactions (667) 36 (6,159) 704
Distributions to stockholders:        
Distributions from distributable earnings (losses) (949) (2,219) (11,623) (16,913)
Distributions declared and payable (4,699) (4,875) (4,699) (4,875)
Total increase (decrease) common stock, outstanding value 1,307 0 0 0
Ending balance $ 331 $ 273 $ 331 $ 273