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Contingencies, Commitments and Guarantees - Additional Information (Details) - USD ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Loss Contingencies      
Remaining investment commitments $ 30,900,000    
Liability for guarantees 0    
Settlement with SEC      
Loss Contingencies      
Loss Contingency Accrual, Payments   $ 14,000,000.0  
Settlement with CFTC      
Loss Contingencies      
Loss Contingency Accrual, Payments   2,000,000.0  
Other non-interest expense      
Loss Contingencies      
Litigation Settlement, Fee Expense $ 800,000 (2,200,000) $ 20,200,000
Other non-interest expense | Settlement with SEC and CFTC      
Loss Contingencies      
Loss Contingency Accrual, Period Increase (Decrease)   $ (4,000,000.0) $ 20,000,000.0