v3.26.1
Segment Reporting - Reconciliation of Revenues and Measures of Profit or Loss from Segment to Consolidated (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Interest income:        
Interest and fees on loans, including loans held for sale $ 80,328 $ 75,828 $ 158,179 $ 148,564
Interest and dividends on securities:        
Taxable 7,254 5,709 14,036 11,484
Tax exempt 563 613 1,173 1,230
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock 169 181 340 369
Interest on Federal Reserve Bank deposits 2,817 3,142 5,059 5,790
Other, including interest on federal funds sold 107 98 206 188
Total interest income 91,238 85,571 178,993 167,625
Interest expense:        
Interest on deposits 26,839 28,170 52,286 55,628
Interest on repurchase agreements and federal funds purchased 2,592 2,352 5,191 4,670
Interest on advances from Federal Home Loan Bank 0 13 0 13
Interest on long-term debt 918 996 1,845 2,007
Total interest expense 30,349 31,531 59,322 62,318
Net interest income 60,889 54,040 119,671 105,307
Provision for credit losses 2,771 2,094 5,082 5,662
Net interest income after provision for credit losses 58,118 51,946 114,589 99,645
Noninterest income:        
Deposit related fees 7,657 7,350 14,812 14,172
Gains on sales of loans, net 61 77 112 124
Trust and wealth management income 4,724 4,092 9,186 8,073
Loan related fees 1,146 1,249 2,185 2,214
Bank owned life insurance 1,188 1,102 2,902 2,137
Brokerage revenue 528 526 1,048 1,020
Securities gains (losses) 924 150 436 630
Dividend and undistributed income from subsidiaries 0 0 0 0
Other noninterest income 1,371 1,625 2,332 2,698
Total noninterest income 17,599 16,171 33,013 31,068
Noninterest expense:        
Officer salaries and employee benefits 5,294 5,610 10,092 10,007
Other salaries and employee benefits 17,926 16,044 35,233 31,765
Occupancy, net 2,564 2,389 5,446 5,140
Equipment 803 783 1,620 1,472
Data processing 2,851 3,326 5,806 6,185
Taxes other than property and payroll 619 573 1,236 1,102
Legal fees 330 319 780 879
Professional fees 754 682 1,468 1,347
Advertising and marketing 841 765 1,541 1,438
FDIC insurance 751 688 1,495 1,377
Other real estate owned provision and expense 38 64 83 125
Repossession expense 306 264 684 457
Other noninterest expense 4,293 4,156 8,423 8,577
Total noninterest expense 37,370 35,663 73,907 69,871
Income before income taxes 38,347 32,454 73,695 60,842
Income taxes 8,724 7,555 16,880 13,971
Net income 29,623 24,899 56,815 46,871
Operating Segments [Member] | Community Banking Services [Member]        
Interest income:        
Interest and fees on loans, including loans held for sale 80,328 75,828 158,179 148,564
Interest and dividends on securities:        
Taxable 7,254 5,709 14,036 11,484
Tax exempt 563 613 1,173 1,230
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock 169 181 340 369
Interest on Federal Reserve Bank deposits 2,817 3,142 5,059 5,790
Other, including interest on federal funds sold 81 69 154 130
Total interest income 91,212 85,542 178,941 167,567
Interest expense:        
Interest on deposits 26,839 28,170 52,286 55,628
Interest on repurchase agreements and federal funds purchased 2,592 2,352 5,191 4,670
Interest on advances from Federal Home Loan Bank   13   13
Interest on long-term debt 109 89 217 181
Total interest expense 29,540 30,624 57,694 60,492
Net interest income 61,672 54,918 121,247 107,075
Provision for credit losses 2,771 2,094 5,082 5,662
Net interest income after provision for credit losses 58,901 52,824 116,165 101,413
Noninterest income:        
Deposit related fees 7,657 7,350 14,812 14,172
Gains on sales of loans, net 61 77 112 124
Trust and wealth management income 4,874 4,226 9,483 8,345
Loan related fees 1,146 1,249 2,185 2,214
Bank owned life insurance 1,188 1,102 2,902 2,137
Brokerage revenue 528 526 1,048 1,020
Securities gains (losses) 924 150 436 630
Dividend and undistributed income from subsidiaries 0 0 0 0
Other noninterest income 1,696 1,919 2,981 3,289
Total noninterest income 18,074 16,599 33,959 31,931
Noninterest expense:        
Officer salaries and employee benefits 4,742 4,924 8,998 8,729
Other salaries and employee benefits 17,926 16,044 35,233 31,765
Occupancy, net 2,564 2,389 5,446 5,140
Equipment 804 800 1,632 1,506
Data processing 3,294 3,759 6,692 7,056
Taxes other than property and payroll 619 573 1,236 1,102
Legal fees 297 215 701 708
Professional fees 1,393 1,358 2,761 2,704
Advertising and marketing 832 789 1,521 1,454
FDIC insurance 751 688 1,495 1,377
Other real estate owned provision and expense 38 64 83 125
Repossession expense 306 264 684 457
Other noninterest expense 4,022 3,893 8,059 8,208
Total noninterest expense 37,588 35,760 74,541 70,331
Income before income taxes 39,387 33,663 75,583 63,013
Income taxes 9,350 8,226 18,173 15,314
Net income 30,037 25,437 57,410 47,699
Operating Segments [Member] | Holding Company [Member]        
Interest income:        
Interest and fees on loans, including loans held for sale 0 0 0 0
Interest and dividends on securities:        
Taxable 0 0 0 0
Tax exempt 0 0 0 0
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock 0 0 0 0
Interest on Federal Reserve Bank deposits 0 0 0 0
Other, including interest on federal funds sold 26 29 52 58
Total interest income 26 29 52 58
Interest expense:        
Interest on deposits 0 0 0 0
Interest on repurchase agreements and federal funds purchased 0 0 0 0
Interest on advances from Federal Home Loan Bank   0   0
Interest on long-term debt 858 961 1,727 1,936
Total interest expense 858 961 1,727 1,936
Net interest income (832) (932) (1,675) (1,878)
Provision for credit losses 0 0 0 0
Net interest income after provision for credit losses (832) (932) (1,675) (1,878)
Noninterest income:        
Deposit related fees 0 0 0 0
Gains on sales of loans, net 0 0 0 0
Trust and wealth management income 0 0 0 0
Loan related fees 0 0 0 0
Bank owned life insurance 0 0 0 0
Brokerage revenue 0 0 0 0
Securities gains (losses) 0 0 0 0
Dividend and undistributed income from subsidiaries 31,209 26,644 59,754 50,113
Other noninterest income 342 313 691 622
Total noninterest income 31,551 26,957 60,445 50,735
Noninterest expense:        
Officer salaries and employee benefits 821 908 1,632 1,721
Other salaries and employee benefits 252 230 503 460
Occupancy, net 0 0 0 0
Equipment 55 52 106 103
Data processing 10 10 21 17
Taxes other than property and payroll 0 0 0 0
Legal fees 33 104 79 171
Professional fees 132 103 246 204
Advertising and marketing 9 (24) 20 (16)
FDIC insurance 0 0 0 0
Other real estate owned provision and expense 0 0 0 0
Repossession expense 0 0 0 0
Other noninterest expense 410 414 641 669
Total noninterest expense 1,722 1,797 3,248 3,329
Income before income taxes 28,997 24,228 55,522 45,528
Income taxes (626) (671) (1,293) (1,343)
Net income 29,623 24,899 56,815 46,871
Eliminations [Member]        
Interest income:        
Interest and fees on loans, including loans held for sale 0 0 0 0
Interest and dividends on securities:        
Taxable 0 0 0 0
Tax exempt 0 0 0 0
Interest and dividends on Federal Reserve Bank and Federal Home Loan Bank stock 0 0 0 0
Interest on Federal Reserve Bank deposits 0 0 0 0
Other, including interest on federal funds sold 0 0 0 0
Total interest income 0 0 0 0
Interest expense:        
Interest on deposits 0 0 0 0
Interest on repurchase agreements and federal funds purchased 0 0 0 0
Interest on advances from Federal Home Loan Bank   0   0
Interest on long-term debt (49) (54) (99) (110)
Total interest expense (49) (54) (99) (110)
Net interest income 49 54 99 110
Provision for credit losses 0 0 0 0
Net interest income after provision for credit losses 49 54 99 110
Noninterest income:        
Deposit related fees 0 0 0 0
Gains on sales of loans, net 0 0 0 0
Trust and wealth management income (150) (134) (297) (272)
Loan related fees 0 0 0 0
Bank owned life insurance 0 0 0 0
Brokerage revenue 0 0 0 0
Securities gains (losses) 0 0 0 0
Dividend and undistributed income from subsidiaries (31,209) (26,644) (59,754) (50,113)
Other noninterest income (667) (607) (1,340) (1,213)
Total noninterest income (32,026) (27,385) (61,391) (51,598)
Noninterest expense:        
Officer salaries and employee benefits (269) (222) (538) (443)
Other salaries and employee benefits (252) (230) (503) (460)
Occupancy, net 0 0 0 0
Equipment (56) (69) (118) (137)
Data processing (453) (443) (907) (888)
Taxes other than property and payroll 0 0 0 0
Legal fees 0 0 0 0
Professional fees (771) (779) (1,539) (1,561)
Advertising and marketing 0 0 0 0
FDIC insurance 0 0 0 0
Other real estate owned provision and expense 0 0 0 0
Repossession expense 0 0 0 0
Other noninterest expense (139) (151) (277) (300)
Total noninterest expense (1,940) (1,894) (3,882) (3,789)
Income before income taxes (30,037) (25,437) (57,410) (47,699)
Income taxes 0 0 0 0
Net income $ (30,037) $ (25,437) $ (57,410) $ (47,699)