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Commitments and Contingencies - Summary of Outstanding Commitments to Fund Investments in Current Portfolio Companies (Details) - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	$ 54,394	$ 47,900
Accordion Partners LLC | Delayed Draw Term Loan
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	698
Accordion Partners LLC | Delayed Draw Term Loan
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	872
Accordion Partners LLC | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	1,531
AMCP Pet Holdings, Inc. | Revolving Loan
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	250
Analogic Corporation | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	35
Anthem Sports & Entertainment Inc. | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	83
Appfire Technologies, LLC | Delayed Draw Term Loan
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	1,665
Beta Plus Technologies, Inc | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	2,415
Bradshaw International Parent Corp. | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	538
Bristol Hospice | Delayed Draw Term Loan
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	55
Centric Brands Inc. | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	58
Centric Brands Inc. | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	109
Critical Nurse Staffing, LLC | Delayed Draw Term Loan
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	3,094
Critical Nurse Staffing, LLC | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	2,000
Global Integrated Flooring Systems Inc. | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	25
H.W. Lochner, Inc. | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	1,799
Luminii LLC | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	172
Marble Point Credit Management LLC Member | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	2,500
Maxor National Pharmacy Services, LLC | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	585
Naviga Inc. | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	77
Netwrix Corporation | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	1,148
Netwrix Corporation | Delayed Draw Term Loan - First Lien
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	1,222
Netwrix Corporation | Delayed Draw Term Loan - First Lien
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	192
Premier Imaging, LLC | Delayed Draw Term Loan
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	1,378
TA/WEG Holdings, LLC | Delayed Draw Term Loan
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	4,603
TA/WEG Holdings, LLC | Revolver
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	784
TLE Holdings, LLC | Delayed Draw Term Loan
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	2
Aperture Dodge 18 LLC | Equity - Unfunded
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	2,927
GreenPark Infrastructure, LLC | Preferred Equity
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	1,829
Series A-Great Lakes Funding II LLC | Joint Venture
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items]
Unfunded Portfolio Company Commitments, Par Value	$ 21,749

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 20
-Section 50
-Paragraph 16
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=66023616&loc=SL35737436-115832

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