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Investment Securities  - Schedule of Held To Maturity Credit Quality Indicator (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]    
Investment securities, held to maturity, net $ 90,646 $ 111,747
State and political subdivisions    
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]    
Investment securities, held to maturity, net 90,146 111,246
State and political subdivisions | A+ rated or higher    
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]    
Investment securities, held to maturity, net 90,146 110,959
State and political subdivisions | Not rated    
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]    
Investment securities, held to maturity, net 0 287
Foreign bonds    
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]    
Investment securities, held to maturity, net 500 501
Foreign bonds | A+ rated or higher    
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]    
Investment securities, held to maturity, net 500 501
Foreign bonds | Not rated    
Debt Securities, Held-to-maturity, Credit Quality Indicator [Line Items]    
Investment securities, held to maturity, net $ 0 $ 0