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Portfolio Company Investments - Schedule of Debt Investment on Non-Accrual Status (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Fair Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	$ 20,507	$ 10,267
Fair Value | K2 Merger Agreement Agent, LLC (fka K2 Industrial Services, Inc.)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	2,123	2,123
Fair Value | Allredi, LLC (fka Marco Group International OpCo, LLC)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	8,742	8,144
Fair Value | Suited Connector LLC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	9,642
Cost
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	43,137	27,204
Cost | EBL, LLC (EbLens)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	9,332	9,332
Cost | US GreenFiber, LLC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	5,223	5,223
Cost | K2 Merger Agreement Agent, LLC (fka K2 Industrial Services, Inc.)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	2,368	2,368
Cost | Allredi, LLC (fka Marco Group International OpCo, LLC)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	10,281	$ 10,281
Cost | Suited Connector LLC
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total	$ 15,933

X

- Definition

Amount of investment in debt security measured at amortized cost (held-to-maturity) on nonaccrual status.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919258-210447

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- Definition

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+ References

No definition available.

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