v3.26.1
Non-interest Income and Expense - Components of Non-Interest Income (Detail) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Schedule Of Other Noninterest Income And Expense [Line Items]        
Total service charges and fees $ 13,998 $ 13,650 $ 27,158 $ 26,328
Increase in cash value of life insurance 875 842 1,691 1,662
Asset management and commission income 1,761 1,635 3,810 3,123
Gain on sale of loans 485 503 882 847
Lease brokerage income 48 50 145 116
Sale of customer checks 319 318 683 663
Gain (loss) on sale or exchange of investment securities 0 4 17 (1,142)
Gain (loss) on marketable equity securities (11) 8 (28) 47
Other 771 80 920 1,519
Total other non-interest income 4,248 3,440 8,120 6,835
Total non-interest income 18,246 17,090 35,278 33,163
ATM and interchange fees        
Schedule Of Other Noninterest Income And Expense [Line Items]        
Total service charges and fees 6,771 6,590 13,040 12,696
Service charges on deposit accounts        
Schedule Of Other Noninterest Income And Expense [Line Items]        
Total service charges and fees 5,453 5,189 10,662 10,103
Other service fees        
Schedule Of Other Noninterest Income And Expense [Line Items]        
Total service charges and fees 1,529 1,485 3,016 2,844
Mortgage banking service fees        
Schedule Of Other Noninterest Income And Expense [Line Items]        
Total service charges and fees 419 438 846 877
Change in value of mortgage servicing rights        
Schedule Of Other Noninterest Income And Expense [Line Items]        
Total service charges and fees $ (174) $ (52) $ (406) $ (192)