Derivative Instruments - Schedule of Notional Value and Fair Value of Derivative Instruments (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Derivative [Line Items]
Notional Value	$ 885,378	$ 669,469
Derivative Assets	27,050	20,941
Derivative Liabilities	30,077	14,944
Exchange-traded futures
Derivative [Line Items]
Notional Value	195,436	157,787
Derivative Assets	323	2,835
Derivative Liabilities	2,582	33
Currency forwards
Derivative [Line Items]
Notional Value	82,138	27,368
Derivative Assets	4,936	4,881
Derivative Liabilities	7,273	4,656
Interest rate swaps
Derivative [Line Items]
Notional Value	12,199	17,667
Derivative Assets	89	367
Derivative Liabilities	118	14
Credit default swaps
Derivative [Line Items]
Notional Value	361,851	199,720
Derivative Assets	11,086	4,172
Derivative Liabilities	20,047	9,099
Total return swaps
Derivative [Line Items]
Notional Value	183,560	216,468
Derivative Assets	4,918	663
Derivative Liabilities	(324)	1,087
Option swaps
Derivative [Line Items]
Notional Value	50,194	50,459
Derivative Assets	5,698	8,023
Derivative Liabilities	$ 381	$ 55