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Goodwill and Intangible Assets - Schedule of Acquired Intangible Assets, Other than Goodwill (Detail) - USD ($)
$ in Thousands
Sep. 30, 2022
Dec. 31, 2021
Acquired Finite-Lived Intangible Assets [Line Items]    
Net Carrying Amount $ 11,554  
Core deposit intangibles [Member]    
Acquired Finite-Lived Intangible Assets [Line Items]    
Gross Carrying Amount 12,953 $ 8,527
Accumulated Amortization 4,478 3,588
Net Carrying Amount $ 8,475 $ 4,939