v3.26.1
Fair Values of Assets and Liabilities - Schedule of Assets Measured on Non-Recurring Basis (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total Assets $ 1,151,330   $ 1,151,330   $ 1,069,838
Loans Held for Sale 42,682   42,682   46,071
Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Impaired Loans (4,459) $ (5,284) (11,277) $ (12,734)  
Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Loans Held For Sale 0 0 0 0  
Fair Value Measurement Of Assets On Nonrecurring Basis Net Losses On Other Real Estate Owned 0 (32) (36) (32)  
Fair Value Measurement Of Assets On Nonrecurring Basis Net Loss (4,459) $ (5,316) (11,313) $ (12,766)  
Fair Value, Nonrecurring [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impaired loans 71,326   71,326   81,920
Other real estate owned 2,291   2,291   1,014
Total Assets 75,699   75,699   308,315
Loans Held for Sale 2,082   2,082   225,381
Level 1 [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total Assets 0   0   0
Loans Held for Sale 0   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   0
Other real estate owned 0   0   0
Total Assets 0   0   0
Loans Held for Sale 0   0   0
Level 2 [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total Assets 1,151,330   1,151,330   1,069,838
Loans Held for Sale 42,682   42,682   46,071
Level 2 [Member] | Fair Value, Nonrecurring [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impaired loans 42,730   42,730   40,617
Other real estate owned 2,291   2,291   1,014
Total Assets 47,103   47,103   267,012
Loans Held for Sale 2,082   2,082   225,381
Level 3 [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Total Assets 0   0   0
Loans Held for Sale 0   0   0
Level 3 [Member] | Fair Value, Nonrecurring [Member]          
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]          
Impaired loans 28,596   28,596   41,303
Other real estate owned 0   0   0
Total Assets 28,596   28,596   41,303
Loans Held for Sale $ 0   $ 0   $ 0