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Securities - Gross Realized Gains (Losses) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]    
Proceeds from sales, redemptions and calls of debt securities available for sale $ 114,923 $ 421,175
Gross realized gain 4,307 25,692
Gross realized losses (33) (147)
Realized gains, net $ 4,274 $ 25,545