Derivative Instruments - Schedule of Notional Value and Fair Value of Derivative Instruments (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Derivative [Line Items]
Notional Value	$ 748,137	$ 669,469
Derivative Assets	14,304	20,941
Derivative Liabilities	19,153	14,944
Exchange-traded futures
Derivative [Line Items]
Notional Value	170,508	157,787
Derivative Assets	876	2,835
Derivative Liabilities	324	33
Currency forwards
Derivative [Line Items]
Notional Value	75,686	27,368
Derivative Assets	4,811	4,881
Derivative Liabilities	5,268	4,656
Interest rate swaps
Derivative [Line Items]
Notional Value	17,282	17,667
Derivative Assets	87	367
Derivative Liabilities	117	14
Credit default swaps
Derivative [Line Items]
Notional Value	241,508	199,720
Derivative Assets	735	4,172
Derivative Liabilities	5,774	9,099
Total return swaps
Derivative [Line Items]
Notional Value	192,631	216,468
Derivative Assets	1,396	663
Derivative Liabilities	7,640	1,087
Option swaps
Derivative [Line Items]
Notional Value	50,522	50,459
Derivative Assets	6,399	8,023
Derivative Liabilities	$ 30	$ 55