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Loans and Allowance for Loan Losses - Summary of Impaired Financing Receivables (Detail) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Financing Receivable Impaired [Line Items]    
Impaired financing receivable, with no specific allowance recorded, recorded investment $ 45,170 $ 9,733
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance 45,085 10,388
Impaired financing receivable, related allowance 3,179 879
Commercial and Industrial [Member]    
Financing Receivable Impaired [Line Items]    
Impaired financing receivable, with no specific allowance recorded, recorded investment 1,309  
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance 1,289  
Impaired financing receivable, related allowance 3,178 836
Impaired financing receivable, with an allowance recorded, recorded investment 37,938 4,612
Impaired financing receivable, with an allowance recorded, unpaid principal balance 37,911 4,612
Real Estate [Member] | Mortgage, Residential [Member]    
Financing Receivable Impaired [Line Items]    
Impaired financing receivable, with no specific allowance recorded, recorded investment 835  
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance 834  
Impaired financing receivable, related allowance   42
Impaired financing receivable, with an allowance recorded, recorded investment 0 1,400
Impaired financing receivable, with an allowance recorded, unpaid principal balance 0 1,400
Real Estate [Member] | Commercial Construction [Member]    
Financing Receivable Impaired [Line Items]    
Impaired financing receivable, with no specific allowance recorded, recorded investment 521 527
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance 521 527
Real Estate [Member] | Mortgage, Commercial [Member]    
Financing Receivable Impaired [Line Items]    
Impaired financing receivable, with no specific allowance recorded, recorded investment 4,438  
Impaired financing receivable, with no specific allowance recorded, unpaid principal balance 4,404  
Impaired financing receivable, related allowance 1 1
Impaired financing receivable, with an allowance recorded, recorded investment 129 3,194
Impaired financing receivable, with an allowance recorded, unpaid principal balance $ 126 $ 3,849