v3.26.1
Derivatives - Gains and (Losses) on Derivative Contracts (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Derivative, gain (loss), statement of income or comprehensive income [Extensible Enumeration] Principal transactions Principal transactions Principal transactions Principal transactions
Gain (loss), net on derivative contract $ 7,052 $ 9,697 $ 16,424 $ 17,571
Interest rate swaps        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Gain (loss), net on derivative contract 4,620 2,994 11,342 5,376
Futures        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Gain (loss), net on derivative contract 1,813 5,354 3,708 9,931
FX swaps        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Gain (loss), net on derivative contract 568 1,208 1,286 2,029
FX/commodities options        
Derivative Instruments and Hedging Activities Disclosures [Line Items]        
Gain (loss), net on derivative contract $ 51 $ 141 $ 88 $ 235