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Schedule 12-14s - Summary of schedule of investment (Parenthetical) (Details) | Sep. 30, 2022 | Dec. 31, 2021
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Investment, Affiliated Issuer, Noncontrolled [Member] |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment owned, percent of net assets |  | 0.72%
Investment, Affiliated Issuer, Controlled [Member] |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment owned, percent of net assets | 5.89% | 5.62%
Investment, Affiliated Issuer, Controlled [Member] | Other Control Investments |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment owned, percent of net assets | 0.61% | 0.63%
Investment, Affiliated Issuer, Controlled [Member] | Majority Owned Control Investments [Member] |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment owned, percent of net assets | 5.28% | 4.99%
Investment, Affiliated Issuer [Member] |  |
Investments in and Advances to Affiliates [Line Items] |  |
Investment owned, percent of net assets | 5.89% | 6.34%

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