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	6 Months Ended
Mar. 31, 2026	Mar. 31, 2025	Mar. 31, 2026	Mar. 31, 2025
Earnings Per Share [Abstract]
Net increase (decrease) in net assets resulting from operations	$ (2,329)	$ 9,456	$ 6,626	$ 25,540
Denominator for basic weighted average shares	65,296,094	65,296,094	65,296,094	65,296,094
Denominator for diluted weighted average shares	65,296,094	65,296,094	65,296,094	65,296,094
Basic and diluted net increase (decrease) in net assets per share resulting from operations	$ (0.04)	$ 0.14	$ 0.1	$ 0.39

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

6 Months Ended

Mar. 31, 2026

Mar. 31, 2025

Mar. 31, 2026

Mar. 31, 2025

Earnings Per Share [Abstract]

Net increase (decrease) in net assets resulting from operations

$ (2,329)

$ 9,456

$ 6,626

$ 25,540

Denominator for basic weighted average shares

65,296,094

Denominator for diluted weighted average shares

65,296,094

Basic and diluted net increase (decrease) in net assets per share resulting from operations

$ (0.04)

$ 0.14

$ 0.1

$ 0.39

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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+ Details