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Fair Value Accounting - Roll-forward of Level 3 Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Other Investments - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 12,560 $ 11,172
Included in earnings (21) (28)
Additions 576 511
Ending balance 13,115 11,655
Total net gains (losses) for the period included in earnings attributable to the change in unrealized gain/(losses) relating to assets/liabilities still held $ (21) $ (28)