Derivative Instruments - Summary of Notional Value and Fair Value of Derivative Instruments (Details) - USD ($) $ in Thousands	Jun. 30, 2026	Dec. 31, 2025
Derivative [Line Items]
Derivative Assets	$ 12,747	$ 12,985
Derivative Liabilities	17,731	17,615
Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Value	881,902	876,144
Derivative Assets	12,747	12,985
Derivative Liabilities	17,731	17,615
Exchange-traded futures | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Value	230,224	200,332
Derivative Assets	470	832
Derivative Liabilities	1,728	366
Currency forwards | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Value	115,238	88,910
Derivative Assets	5,764	5,073
Derivative Liabilities	4,526	6,102
Interest rate swaps | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Value	5,735	7,185
Derivative Assets	181	181
Derivative Liabilities	1	12
Credit default swaps | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Value	443,486	371,581
Derivative Assets	1,308	864
Derivative Liabilities	10,575	10,551
Total return swaps | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Value	37,062	157,940
Derivative Assets	0	1,140
Derivative Liabilities	883	419
Option swaps | Not Designated as Hedging Instrument
Derivative [Line Items]
Notional Value	50,157	50,196
Derivative Assets	5,024	4,895
Derivative Liabilities	$ 18	$ 165