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Debt - CLO X (Details) - USD ($)			3 Months Ended
Debt - CLO X (Details) - USD ($)	Apr. 04, 2025	Mar. 09, 2023	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Debt Instrument [Line Items]
Value of shares issued			$ 0	$ 3,070,000
Preferred equity investments \| CLO X Issuer
Debt Instrument [Line Items]
Value of shares issued		$ 137,700,000
Shares issued (in shares)		137,700
Issue price (in usd per share)		$ 1,000
Middle Market Loans \| CLO X Issuer
Debt Instrument [Line Items]
Principal amount	$ 245,900,000	$ 245,900,000
Middle Market Loans \| ORCC Financing III, LLC \| CLO X Issuer
Debt Instrument [Line Items]
Principal amount	56,300,000	141,300,000
CLO X \| Secured Debt
Debt Instrument [Line Items]
Principal amount	409,700,000	397,700,000	$ 272,000,000		$ 272,000,000
CLO X, Class A Notes \| Secured Debt
Debt Instrument [Line Items]
Principal amount		$ 228,000,000.0
Basis spread on variable rate		2.45%
CLO X, Class B Notes \| Secured Debt
Debt Instrument [Line Items]
Principal amount		$ 32,000,000.0
Basis spread on variable rate		3.60%
CLO X, Class A-R Notes \| Secured Debt
Debt Instrument [Line Items]
Principal amount	$ 93,000,000.0
Interest rate, stated percentage	1.39%
CLO X, Class B-R Notes \| Secured Debt
Debt Instrument [Line Items]
Principal amount	$ 44,000,000.0
Interest rate, stated percentage	1.70%
CLO X, Class A-L1 Loans \| Secured Debt
Debt Instrument [Line Items]
Principal amount	$ 135,000,000.0
Interest rate, stated percentage	1.39%
CLO X, Refinancing Additional Preferred Shares \| Preferred equity investments \| CLO X Issuer
Debt Instrument [Line Items]
Value of shares issued	$ 137,700,000
Shares issued (in shares)	137,700