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Deposits - Scheduled Maturities for Time Deposits (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Maturities Of Time Deposits [Abstract]    
2020 $ 157,249  
2021 50,803  
2022 47,918  
2023 12,680  
2024 6,860  
Thereafter 1,053  
Total $ 276,563 $ 187,413