Derivative Instruments - Summary of Derivative Instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Derivative [Line Items]
Derivatives	$ 12,985	$ 20,941
Derivatives	17,615	14,944
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Value	876,144	669,469
Derivatives	12,985	20,941
Derivatives	17,615	14,944
Gains (Losses)	(29,925)	(7,930)
Not Designated as Hedging Instrument | Exchange-traded futures
Derivative [Line Items]
Notional Value	200,332	157,787
Derivatives	832	2,835
Derivatives	366	33
Gains (Losses)	(7,946)	(2,744)
Not Designated as Hedging Instrument | Currency forwards
Derivative [Line Items]
Notional Value	88,910	27,368
Derivatives	5,073	4,881
Derivatives	6,102	4,656
Gains (Losses)	(4,204)	1,690
Not Designated as Hedging Instrument | Interest rate swaps
Derivative [Line Items]
Notional Value	7,185	17,667
Derivatives	181	367
Derivatives	12	14
Gains (Losses)	(127)	310
Not Designated as Hedging Instrument | Credit default swaps
Derivative [Line Items]
Notional Value	371,581	199,720
Derivatives	864	4,172
Derivatives	10,551	9,099
Gains (Losses)	(5,199)	(2,675)
Not Designated as Hedging Instrument | Total return swaps
Derivative [Line Items]
Notional Value	157,940	216,468
Derivatives	1,140	663
Derivatives	419	1,087
Gains (Losses)	(9,156)	(3,823)
Not Designated as Hedging Instrument | Option swaps
Derivative [Line Items]
Notional Value	50,196	50,459
Derivatives	4,895	8,023
Derivatives	165	55
Gains (Losses)	$ (3,293)	$ (688)