Joint venture ownership percentage.

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Loan or advance fee payable days.

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Origination and administrative agent fees.

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Percentage of capital contribution invested in joint venture common equity.

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Percentage of capital contribution invested in joint venture debt notes.

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Percentage of daily average aggregate value of outstanding loans and equipment financings.

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Percentage of fee for loan and advance.

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Percentage of principal amount of loan or equipment financing advance.

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Remaining percentage of fee for loan or advance.

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Unfunded capital commitment.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Amount of member capital in limited liability company (LLC).

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Amount due from parties in nontrade transactions, classified as other.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Related Party Transactions - Additional Information (Details) $ in Millions		3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 05, 2022 USD ($) BusinessDays	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)	Dec. 31, 2024 USD ($)
Related Party Transaction [Line Items]
Debt instrument percentage						6.00%
Percentage of capital contribution invested in joint venture debt notes	70.00%
Percentage of capital contribution invested in joint venture common equity	30.00%
Percentage of principal amount of loan or equipment financing advance	100
Percentage of fee for loan and advance	50.00%
Loan or advance fee payable number of days \| BusinessDays	2
Remaining percentage of fee for loan or advance	50.00%
Percentage of daily average aggregate value of outstanding loans and equipment financings	75
Net proceeds for the sale of investments		$ 17.5		$ 46.6		$ 157.3
Dividend distributions		$ 0.5	$ 0.3	$ 1.3	$ 0.5
8.5% Notes
Related Party Transaction [Line Items]
Debt instrument percentage	8.50%
i 40 LLC
Related Party Transaction [Line Items]
Initally contributed capital	$ 21.4
JV Partner
Related Party Transaction [Line Items]
Initally contributed capital	$ 150.0
Joint venture ownership percentage		87.50%		87.50%
Senior Credit Corp 2022 LLC
Related Party Transaction [Line Items]
Joint venture ownership percentage		12.50%		12.50%
Trinity Investor J V I L L C
Related Party Transaction [Line Items]
Initally contributed capital		$ 18.4		$ 18.4		18.4
Total Investments at fair value		228.5		228.5		219.1
Unfunded capital commitment				3.0		3.0
Trinity Investor J V I L L C \| Debt
Related Party Transaction [Line Items]
Total Investments at fair value		12.9		12.9		12.9
Trinity Investor J V I L L C \| Equity
Related Party Transaction [Line Items]
Total Investments at fair value		5.5		5.5		5.5
Corporate Joint Venture \| Other assets
Related Party Transaction [Line Items]
Other receivables		0.9		0.9		$ 1.1
Corporate Joint Venture \| Fee Income
Related Party Transaction [Line Items]
Origination and administrative agent fees		$ 0.6	$ 0.8	$ 1.3	$ 1.7