v3.26.1
Fair Value Measurement - Summary of Estimated Fair Values of Financial Instruments that are Reported at Amortized Cost in Consolidated Balance Sheets (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Financial assets:    
Cash and due from banks $ 77,063 $ 92,914
Cash at Federal Reserve and other banks 28,158 64,100
Financial liabilities:    
Other borrowings 10,519 11,713
Junior subordinated debt 41,238 41,238
Carrying Amount | Level 1    
Financial assets:    
Cash and due from banks 77,063 92,914
Cash at Federal Reserve and other banks 28,158 64,100
Carrying Amount | Level 2    
Financial assets:    
Securities held to maturity 80,789 90,544
Financial liabilities:    
Demand, money market, and savings deposits 7,225,819 7,153,859
Time deposits 1,143,011 1,110,042
Other borrowings 10,519 11,713
Carrying Amount | Level 3    
Financial assets:    
Loans, net 7,180,903 6,985,325
Financial liabilities:    
Junior subordinated debt 41,238 41,238
Fair Value | Level 1    
Financial assets:    
Cash and due from banks 77,063 92,914
Cash at Federal Reserve and other banks 28,158 64,100
Fair Value | Level 2    
Financial assets:    
Securities held to maturity 76,715 86,987
Financial liabilities:    
Demand, money market, and savings deposits 7,225,819 7,153,859
Time deposits 1,142,439 1,109,820
Other borrowings 10,519 11,713
Fair Value | Level 3    
Financial assets:    
Loans, net 7,032,976 6,803,008
Financial liabilities:    
Junior subordinated debt $ 40,393 $ 40,673