Derivative Instruments - Schedule of Gains (Losses) Recognized on Derivative Instruments by Contract Type (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Derivative [Line Items]
Net realized gain (loss) on derivatives	$ (1,676)	$ 0	$ (150)	$ 0
Net change in unrealized gain (loss) on derivatives	$ 6,839	(408)	$ (6,279)	(478)
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:SecuredOvernightFinancingRateSofrMember		us-gaap:SecuredOvernightFinancingRateSofrMember
Series I
Derivative [Line Items]
Net realized gain (loss) on derivatives	$ (367)	(0)	$ 45	0
Net change in unrealized gain (loss) on derivatives	$ 1,477	(58)	$ (1,803)	(58)
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:SecuredOvernightFinancingRateSofrMember		us-gaap:SecuredOvernightFinancingRateSofrMember
Series II
Derivative [Line Items]
Net realized gain (loss) on derivatives	$ (1,309)	0	$ (195)	0
Net change in unrealized gain (loss) on derivatives	$ 5,362	(350)	$ (4,476)	(420)
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]	us-gaap:SecuredOvernightFinancingRateSofrMember		us-gaap:SecuredOvernightFinancingRateSofrMember
Credit Risk | Credit Default Swaps
Derivative [Line Items]
Average derivative notional amounts	$ 44,550	4,000	$ 36,772	3,000
Net realized gain (loss) on derivatives	0	0	0	0
Net change in unrealized gain (loss) on derivatives	442	0	685	0
Credit Risk | Credit Default Swaps | Series I
Derivative [Line Items]
Average derivative notional amounts	9,793	635	8,741	476
Net realized gain (loss) on derivatives	0	0	0	0
Net change in unrealized gain (loss) on derivatives	97	0	156	0
Credit Risk | Credit Default Swaps | Series II
Derivative [Line Items]
Average derivative notional amounts	34,757	3,365	28,031	2,524
Net realized gain (loss) on derivatives	0	0	0	0
Net change in unrealized gain (loss) on derivatives	345	0	529	0
Interest Rate Risk
Derivative [Line Items]
Average derivative notional amounts	943,800		1,246,545
Net realized gain (loss) on derivatives	(1,676)		(2,062)
Net change in unrealized gain (loss) on derivatives	1,814		$ (7,137)
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]			us-gaap:SecuredOvernightFinancingRateSofrMember
Interest Rate Risk | Series I
Derivative [Line Items]
Average derivative notional amounts	207,572		$ 303,748
Net realized gain (loss) on derivatives	(367)		(458)
Net change in unrealized gain (loss) on derivatives	388		$ (1,840)
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]			us-gaap:SecuredOvernightFinancingRateSofrMember
Interest Rate Risk | Series II
Derivative [Line Items]
Average derivative notional amounts	736,228		$ 942,797
Net realized gain (loss) on derivatives	(1,309)		(1,604)
Net change in unrealized gain (loss) on derivatives	1,426		$ (5,297)
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]			us-gaap:SecuredOvernightFinancingRateSofrMember
Interest Rate Risk
Derivative [Line Items]
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]					us-gaap:SecuredOvernightFinancingRateSofrMember
Interest Rate Risk | Series I
Derivative [Line Items]
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]					us-gaap:SecuredOvernightFinancingRateSofrMember
Interest Rate Risk | Series II
Derivative [Line Items]
Debt Instrument, Variable Interest Rate, Type [Extensible Enumeration]					us-gaap:SecuredOvernightFinancingRateSofrMember
EUR/USD Forward | Currency Risk
Derivative [Line Items]
Average derivative notional amounts	205,818	1,713	$ 100,727	1,285
Net realized gain (loss) on derivatives	0	(0)	(678)	(0)
Net change in unrealized gain (loss) on derivatives	3,626	(13)	(770)	(13)
EUR/USD Forward | Currency Risk | Series I
Derivative [Line Items]
Average derivative notional amounts	45,242	272	23,070	204
Net realized gain (loss) on derivatives	0	(0)	(162)	(0)
Net change in unrealized gain (loss) on derivatives	778	(2)	(313)	(2)
EUR/USD Forward | Currency Risk | Series II
Derivative [Line Items]
Average derivative notional amounts	160,576	1,441	77,657	1,081
Net realized gain (loss) on derivatives	0	(0)	(516)	(0)
Net change in unrealized gain (loss) on derivatives	2,848	(11)	(457)	(11)
Interest Rate Swaps | Interest Rate Risk
Derivative [Line Items]
Average derivative notional amounts	290,000	51,250	169,444	51,250
Net realized gain (loss) on derivatives	0	(0)	2,590	(0)
Net change in unrealized gain (loss) on derivatives	957	(395)	943	(465)
Interest Rate Swaps | Interest Rate Risk | Series I
Derivative [Line Items]
Average derivative notional amounts	63,768	7,374	39,436	5,531
Net realized gain (loss) on derivatives		(0)	665	(0)
Net change in unrealized gain (loss) on derivatives	214	(56)	194	(56)
Interest Rate Swaps | Interest Rate Risk | Series II
Derivative [Line Items]
Average derivative notional amounts	226,232	43,876	130,008	45,719
Net realized gain (loss) on derivatives		(0)	1,925	(0)
Net change in unrealized gain (loss) on derivatives	$ 743	$ (339)	$ 749	$ (409)