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Commitments and Contingent Liabilities - Narrative (Details) - Settled Litigation - USD ($) $ in Millions | Jun. 01, 2022 | Feb. 10, 2022 | Aug. 16, 2022
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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

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