Derivative Instruments - Schedule of Notional Value and Fair Value of Derivative Instruments (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Notional Value	$ 348,983	$ 446,989
Derivative Assets	15,339	14,518
Derivative Liabilities	10,964	18,180
Exchange-traded futures
Derivative [Line Items]
Notional Value	109,749	116,344
Derivative Assets	32	1
Derivative Liabilities	556	3,511
Currency forwards
Derivative [Line Items]
Notional Value	10,123	34,440
Derivative Assets	5,022	4,951
Derivative Liabilities	5,027	5,597
Interest rate swaps
Derivative [Line Items]
Notional Value	38,185	11,345
Derivative Assets	657	294
Derivative Liabilities	516	349
Credit default swaps
Derivative [Line Items]
Notional Value	49,503	139,607
Derivative Assets	9,153	9,265
Derivative Liabilities	2,996	4,197
Total return swaps
Derivative [Line Items]
Notional Value	91,378	95,021
Derivative Assets	475	6
Derivative Liabilities	1,661	4,391
Option swaps
Derivative [Line Items]
Notional Value	50,045	50,232
Derivative Assets	0	1
Derivative Liabilities	$ 208	$ 135