Investments - ISLP Forward Foreign Currency Exchange Contracts (Parenthetical) (Details) - USD ($) $ in Thousands		12 Months Ended
	Sep. 11, 2023	Dec. 31, 2025
Open Forward Foreign Currency Contract [Line Items]
Net assets at end of period		$ 1,117,410
Restricted cash		$ 26,809
Interest Rate Floor One
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		3.50%
Interest Rate Floor Two
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.00%
Interest Rate Floor Three
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.75%
Interest Rate Floor Four
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
Interest Rate Floor Five
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.00%
International Senior Loan Program, LLC
Open Forward Foreign Currency Contract [Line Items]
Net assets at end of period		$ 64,451
Debt Instrument, Basis Spread on Variable Rate	246.00%
Restricted cash		$ 14,396
International Senior Loan Program, LLC \| Interest Rate Floor One
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1.00%
International Senior Loan Program, LLC \| Interest Rate Floor Two
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.75%
International Senior Loan Program, LLC \| Interest Rate Floor Three
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.50%
International Senior Loan Program, LLC \| Interest Rate Floor Four
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.00%
International Senior Loan Program, LLC \| Interest Rate Floor Five
Open Forward Foreign Currency Contract [Line Items]
Debt Instrument, Basis Spread on Variable Rate		0.25%