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Investments - Schedule of Valuation Techniques and Significant Inputs of Level III Investments (Details) - Level III $ in Thousands	Jun. 30, 2024 USD ($)	Dec. 31, 2023 USD ($)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 360,683	$ 357,528
First Lien Debt | Enterprise Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 41,153	$ 8,846
First Lien Debt | Enterprise Value | Average EBITDA Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		0.4
First Lien Debt | Enterprise Value | Average EBITDA Multiple | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	6.1
First Lien Debt | Enterprise Value | Average EBITDA Multiple | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	8
First Lien Debt | Enterprise Value | Average EBITDA Multiple | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	5.3	0.1
First Lien Debt | Enterprise Value | Expected Sale Proceeds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	90.3	97.6
First Lien Debt | Enterprise Value | Average Settlement Value | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	0.4
First Lien Debt | Enterprise Value | Average Settlement Value | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	1.3
First Lien Debt | Enterprise Value | Average Settlement Value | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	0.2
First Lien Debt | Enterprise Value | Takeback Paper Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	105
First Lien Debt | Income Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 241,004	$ 275,179
First Lien Debt | Income Approach | Discount Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	0.9	5.3
First Lien Debt | Income Approach | Discount Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	24.5	40.7
First Lien Debt | Income Approach | Discount Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	9.3	12.4
First Lien Debt | Near-term Repayment - Refinancing
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 9,704
First Lien Debt | Near-term Repayment - Refinancing | Current Payment Terms (Par)
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	100
First Lien Debt | Recent Transaction
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments		$ 5,270
First Lien Debt | Recent Transaction | Discount Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		13.8
First Lien Debt | Recent Transaction | Discount Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		14.2
First Lien Debt | Recent Transaction | Discount Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		14
Second Lien Debt | Enterprise Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments		$ 300
Second Lien Debt | Enterprise Value | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		9.5
Second Lien Debt | Enterprise Value | Discount Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		9.5
Second Lien Debt | Income Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 22,220	$ 22,932
Second Lien Debt | Income Approach | Discount Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	8.2	13.8
Second Lien Debt | Income Approach | Discount Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	20.8	14.2
Second Lien Debt | Income Approach | Discount Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	13.8	14
Second Lien Debt | Enterprise Valuation
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 178
Second Lien Debt | Enterprise Valuation | Takeback Paper Price
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	10.8
Subordinated Debt | Enterprise Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments		$ 1,225
Subordinated Debt | Enterprise Value | Recovery Rate Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		0.1
Subordinated Debt | Enterprise Value | Recovery Rate Multiple | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		0.1
Subordinated Debt | Enterprise Value | Average Settlement Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		61
Subordinated Debt | Enterprise Value | Average Settlement Value | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		61
Subordinated Debt | Income Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 483
Subordinated Debt | Income Approach | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	15.4
Subordinated Debt | Income Approach | Discount Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	15.4
Subordinated Debt | Recovery Analysis
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 1,210
Subordinated Debt | Recovery Analysis | Average Settlement Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	47.1
Equity | Enterprise Value
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 18,753	$ 19,805
Equity | Enterprise Value | Average EBITDA Multiple | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	1.4	5
Equity | Enterprise Value | Average EBITDA Multiple | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	18	18
Equity | Enterprise Value | Average EBITDA Multiple | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	4.1	6.9
Equity | Enterprise Value | Expected Sale Proceeds
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	90.3
Equity | Enterprise Value | Average EBITDA Multiple / WACC | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	0.4	0.4
Equity | Enterprise Value | Average EBITDA Multiple / WACC | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	3.7	3.7
Equity | Enterprise Value | Average EBITDA Multiple / WACC | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	1.2	1.1
Equity | Enterprise Value | Book Value of Equity | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		1
Equity | Enterprise Value | Book Value of Equity | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		1.6
Equity | Enterprise Value | Book Value of Equity | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		1.6
Equity | Income Approach
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 4,405	$ 57
Equity | Income Approach | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs		15
Equity | Income Approach | Discount Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	12.5
Equity | Income Approach | Discount Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	21.4
Equity | Income Approach | Discount Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	17.1	15
Equity | Recent Transaction
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 672	$ 671
Equity | Recent Transaction | Discount Rate
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	12.4	12.4
Equity | Recent Transaction | Discount Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	12.4	12.4
Collateralized Loan Obligations | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 7,354	$ 8,968
Collateralized Loan Obligations | Discounted Cash Flow | Discount Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	17.2	18.4
Collateralized Loan Obligations | Discounted Cash Flow | Discount Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	24.1	25.2
Collateralized Loan Obligations | Discounted Cash Flow | Discount Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	20.4	21.1
Collateralized Loan Obligations | Discounted Cash Flow | Recovery Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	65	65
Collateralized Loan Obligations | Discounted Cash Flow | Recovery Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	75	75
Collateralized Loan Obligations | Discounted Cash Flow | Recovery Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	70	70
Collateralized Loan Obligations | Discounted Cash Flow | Probability of Default | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	1.8	1.8
Collateralized Loan Obligations | Discounted Cash Flow | Probability of Default | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	2.5	2.5
Collateralized Loan Obligations | Discounted Cash Flow | Probability of Default | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	2	2
Collateralized Loan Obligations | Discounted Cash Flow | Prepayment Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	15	15
Collateralized Loan Obligations | Discounted Cash Flow | Prepayment Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	25	25
Collateralized Loan Obligations | Discounted Cash Flow | Prepayment Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	20	20
Joint Ventures | Discounted Cash Flow
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Fair value of investments	$ 13,547	$ 14,275
Joint Ventures | Discounted Cash Flow | Discount Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	19.3	20.5
Joint Ventures | Discounted Cash Flow | Discount Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	20.9	22.1
Joint Ventures | Discounted Cash Flow | Discount Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	20.1	21.3
Joint Ventures | Discounted Cash Flow | Recovery Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	65	65
Joint Ventures | Discounted Cash Flow | Recovery Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	75	75
Joint Ventures | Discounted Cash Flow | Recovery Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	70	70
Joint Ventures | Discounted Cash Flow | Probability of Default | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	2.8	2.8
Joint Ventures | Discounted Cash Flow | Probability of Default | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	3.3	3.3
Joint Ventures | Discounted Cash Flow | Probability of Default | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	3	3
Joint Ventures | Discounted Cash Flow | Prepayment Rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	15	15
Joint Ventures | Discounted Cash Flow | Prepayment Rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	25	25
Joint Ventures | Discounted Cash Flow | Prepayment Rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	20	20
Derivatives | Enterprise Value | Average EBITDA Multiple
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	2.5	2.5
Derivatives | Enterprise Value | Average EBITDA Multiple | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Range of Inputs	2.5	2.5

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