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Investment Securities - Realized Gains and Losses (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Investments, Debt and Equity Securities [Abstract]    
Amortized cost of AFS investment securities sold $ 0 $ 304,182
Gross realized gains 0 986
Gross realized (losses) 0 (848)
Net realized gains on sales of AFS investment securities $ 0 $ 138