Taxes and Distributions - Summary of Tax Characteristics of Distributions Declared (Details) - USD ($) $ / shares in Units, $ in Thousands |
12 Months Ended | ||||
|---|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2023 |
Sep. 30, 2022 |
Sep. 30, 2021 |
|
| Income Tax Disclosure [Abstract] | |||||
| Ordinary income (including short-term gains, if any) | $ 62,684 | $ 57,420 | $ 49,571 | ||
| Long-term capital gain | 0 | 0 | 0 | ||
| Total distributions | 62,684 | 57,432 | 49,571 | ||
| Total distributions | $ 62,684 | $ 57,420 | $ 49,571 | ||
| Total distributions declared per share | $ 0.96 | $ 0.88 | $ 0.76 | $ 0.56 | $ 0.48 |
| X | ||||||||||
- Definition Investment Company Dividend Distributions No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Amount of accumulated undistributed earnings (deficit) from long-term capital gain (loss) of investment company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of accumulated undistributed earnings (deficit) from ordinary income (loss) of investment company. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Per share or unit amount of distribution to shareholders. Includes, but is not limited to, dividend and capital gain. Excludes distribution for tax return of capital. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of dividend distribution from ordinary income and capital gain. Excludes distribution for tax return of capital. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|