Debt - CLO VII (Details) - USD ($)	Jul. 26, 2022	Dec. 31, 2023	Dec. 31, 2022
Preferred equity investments | CLO VII Issuer
Debt Instrument [Line Items]
Value of shares issued	$ 111,300,000
Shares issued (in share)	111,320
Issue price (in usd per share)	$ 1,000
Middle market loans | CLO VII Issuer
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 255,500,000
Middle market loans | ORCC Financing IV, LLC | CLO VII Issuer
Debt Instrument [Line Items]
Aggregate Principal Committed	93,300,000
CLO VII | Secured Debt
Debt Instrument [Line Items]
Aggregate Principal Committed	350,500,000	$ 239,150,000	$ 239,150,000
CLO VII, Class A-1 Notes | Secured Debt
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 48,000,000
CLO VII, Class A-1 Notes | Secured Debt | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate	2.10%
CLO VII, Class A-2 Notes | Secured Debt
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 24,000,000
Interest rate, stated percentage	5.00%
CLO VII, Class B-1 Notes | Secured Debt
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 6,000,000
CLO VII, Class B-1 Notes | Secured Debt | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate	2.85%
CLO VII, Class B-2 Notes | Secured Debt
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 26,200,000
Interest rate, stated percentage	5.71%
CLO VII, Class C Notes | Secured Debt
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 10,000,000
Interest rate, stated percentage	6.86%
CLO VII, Class A-L1 Loans | Secured Debt
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 75,000,000
CLO VII, Class A-L2 Loans | Secured Debt
Debt Instrument [Line Items]
Aggregate Principal Committed	$ 50,000,000
CLO VII, Class A-L1 and A-L2 Loans | Secured Debt | SOFR
Debt Instrument [Line Items]
Basis spread on variable rate	2.10%