v3.26.1
Fair Values of Assets and Liabilities - Schedule of Assets Measured on Non-Recurring Basis (Detail) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Total Assets $ 1,087,221   $ 1,069,838
Loans Held for Sale 30,489   46,071
Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Impaired Loans (9,928) $ (7,606)  
Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Loans Held For Sale 0 $ 0  
Fair Value, Nonrecurring [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Impaired loans 77,180   81,920
Other real estate owned 235   1,014
Total Assets 78,564   308,315
Loans Held for Sale 1,149   225,381
Level 1 [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Total Assets 0   0
Loans Held for Sale 0   0
Level 1 [Member] | Fair Value, Nonrecurring [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Impaired loans 0   0
Other real estate owned 0   0
Total Assets 0   0
Loans Held for Sale 0   0
Level 2 [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Total Assets 1,087,221   1,069,838
Loans Held for Sale 30,489   46,071
Level 2 [Member] | Fair Value, Nonrecurring [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Impaired loans 47,010   40,617
Other real estate owned 235   1,014
Total Assets 48,394   267,012
Loans Held for Sale 1,149   225,381
Level 3 [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Total Assets 0   0
Loans Held for Sale 0   0
Level 3 [Member] | Fair Value, Nonrecurring [Member]      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Impaired loans 30,170   41,303
Other real estate owned 0   0
Total Assets 30,170   41,303
Loans Held for Sale $ 0   $ 0