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Commitments and Contingent Liabilities - Narrative (Details) - Settled Litigation - USD ($)
$ in Millions
Jun. 01, 2022
Feb. 10, 2022
Aug. 16, 2022
Class Action Lawsuit, United Stated District Court for Southern District of New York      
Guarantor Obligations [Line Items]      
Litigation settlement, amount awarded to other party   $ 7.5  
Securities Exchange Commission Investigation      
Guarantor Obligations [Line Items]      
Plaintiffs' attorneys' fees and expenses $ 10.0    
Disgorgement $ 2.6    
Federal Reserve System | Chief Executive Officer      
Guarantor Obligations [Line Items]      
Estimate of possible loss     $ 9.5