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Investment Securities and Other Investments - Summary of Amortized Cost and Fair Values of Investment Securities (Detail) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Securities available for sale $ 354,341 $ 373,532
Investment securities, Amortized Cost 413,015 378,741
Investment securities, Gross Unrealized Gains 175 1,513
Investment securities, Gross Unrealized Losses (58,849) (6,722)
Investment securities, Fair Value 354,341 373,532
State and Municipal [Member]    
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Available for sale, Amortized Cost 60,018 51,341
Available for sale, Gross Unrealized Gains   302
Available for sale, Gross Unrealized Losses (9,025) (530)
Securities available for sale 50,993 51,113
U.S. Treasury and Agencies [Member]    
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Available for sale, Amortized Cost 80,073 65,680
Available for sale, Gross Unrealized Losses (12,911) (1,614)
Securities available for sale 67,162 64,066
Mortgage Backed Securities [Member]    
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Available for sale, Amortized Cost 230,015 222,968
Available for sale, Gross Unrealized Gains 51 403
Available for sale, Gross Unrealized Losses (33,730) (4,261)
Securities available for sale 196,336 219,110
Corporate Bonds [Member]    
Schedule Of Available For Sale And Held To Maturity Securities [Line Items]    
Available for sale, Amortized Cost 42,909 38,752
Available for sale, Gross Unrealized Gains 124 808
Available for sale, Gross Unrealized Losses (3,183) (317)
Securities available for sale $ 39,850 $ 39,243