v3.26.1
Change in Net Assets from Operations Per Common Share - Summary of Information Sets Forth for Computation of Basic and Diluted Per Share Net Increase in Net Assets Resulting from Operations (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Earnings Per Share [Abstract]        
Net Income (Loss) $ 7,576 $ 19,298 $ 32,735 $ 48,852
Denominator for basic weighted average shares 99,217,896 99,217,896 99,217,896 90,291,815
Denominator for diluted weighted average shares 99,217,896 99,217,896 99,217,896 90,291,815
Basic and diluted net increase in net assets per share resulting from operations $ 0.08 $ 0.19 $ 0.33 [1],[2] $ 0.54 [1],[2]
[1] Based on the weighted average shares outstanding for the respective periods.
[2] Does not foot due to rounding, as applicable.