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Investments - Schedule of Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule of Investments [Line Items]
Cost/Amortized Cost	$ 652,217	$ 605,365
Fair Value	$ 576,478	549,985
KCAP Freedom 3 LLC
Schedule of Investments [Line Items]
Cost/Amortized Cost		40,847
Fair Value		$ 35,841
Great Lakes KCAP F3C Senior, LLC | Subordinated Securities, Effective Interest 12.3%, 12/29 Maturity | KCAP Freedom 3 LLC
Schedule of Investments [Line Items]
Percentage Ownership by Joint Venture		100.00%
Cost/Amortized Cost		$ 40,847
Fair Value		$ 35,841

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Cost of the investment.

+ References

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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