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Significant Accounting Policies - Additional Information (Details) $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($) DebtInvestment InvesteeCompany	Dec. 31, 2021 USD ($) InvesteeCompany
Accounting Policies [Abstract]
Amount provided to portfolio companies	$ 200.1	$ 239.6
Amount provided to portfolio companies contractually obligated	$ 30.1	$ 21.3
Number of investee companies where loans held | InvesteeCompany	96	92
Aggregate principal amount of loans held	$ 518.4	$ 469.0
Percentage of investment portfolio valuation	100.00%
Number of debt investments on non-accrual status | DebtInvestment	4

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Number of debt investments on non-accrual status.

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Number of investee companies where loans held.

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Percentage of investment portfolio valuation.

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Amount of financial support committed by investment company to investee that is contractually required.

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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 15
-URI https://asc.fasb.org/extlink&oid=66023616&loc=SL35737432-115832

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For investments which are quantified by principal amount, the principle balance held at close of period.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 946
-SubTopic 210
-Section 50
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-Publisher FASB
-Name Accounting Standards Codification
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Amount of financial support provided to a nonconsolidated legal entity that is required to comply with or operate in accordance with requirements that are similar to those included in Rule 2a-7 of the Investment Company Act of 1940 for registered money market funds.

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