7Baggers

S&T Bancorp, Inc
(NASDAQ:STBA) 

STBA stock logo

S&T Bancorp, Inc. operates as the bank holding company for S&T Bank that provides retail and commercial banking products and services. The company operates through six segments: Commercial Real Estate, Commercial and Industrial, Business banking, Commercial Construction, Consumer Real Estate, and Ot...

Founded: 1902
Full Time Employees: 1,201
Sector: Financial Services
Industry: Banks-Regional

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At a glance:
Bull Thesis:
Bear Thesis:
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Moat:
Income Statements:
Quarterly
Annual
    Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2019-06-30 2019-03-31 2018-09-30 2009-06-30 
                                
      interest and dividend income
                                
      loans, including fees
    120,321,000 117,696,000 114,340,000 117,334,000 120,907,000 119,564,000 118,577,000 117,443,000 114,258,000 108,699,000 102,724,000 96,220,000 83,035,000 71,018,000 64,593,000 66,372,000 66,914,000 66,942,000 70,232,000 71,148,000 72,263,000 75,498,000 82,051,000 75,080,000 74,728,000 73,392,000 68,631,000 45,212,000 
      investment securities:
                                
      taxable
    10,994,000 10,846,000 10,073,000 10,167,000 10,221,000 8,761,000 8,595,000 8,491,000 7,857,000 7,806,000 7,457,000 6,507,000 6,305,000 5,995,000 4,936,000 4,174,000 4,176,000 3,793,000 3,563,000 3,371,000 3,473,000 3,791,000 4,215,000 3,552,000 3,647,000 3,790,000 3,649,000 2,908,000 
      tax-exempt
    34,000 35,000 157,000 164,000 165,000 168,000 193,000 210,000 213,000 215,000 214,000 233,000 380,000 484,000 482,000 495,000 595,000 690,000 813,000 851,000 885,000 959,000 870,000 787,000 834,000 844,000 857,000 931,000 
      dividends
    274,000 329,000 278,000 214,000 181,000 272,000 389,000 562,000 631,000 613,000 508,000 248,000 115,000 102,000 98,000 94,000 84,000 152,000 173,000 178,000 227,000 231,000 453,000 394,000 415,000 564,000 490,000 175,000 
      total interest and dividend income
    131,623,000 128,906,000 124,848,000 127,879,000 131,474,000 128,765,000 127,754,000 126,706,000 122,959,000 117,333,000 110,903,000 103,208,000 89,835,000 77,599,000 70,109,000 71,135,000 71,769,000 71,577,000 74,781,000 75,548,000 76,848,000 80,479,000 87,589,000 79,813,000 79,624,000 78,590,000   
      interest expense
                                
      deposits
    39,864,000 39,056,000 38,354,000 40,627,000 42,493,000 39,629,000 36,662,000 32,921,000 24,910,000 20,102,000 14,903,000 11,067,000 5,197,000 1,790,000 1,853,000 2,185,000 2,439,000 2,652,000 3,481,000 4,795,000 6,626,000 9,227,000 15,338,000 16,207,000 16,055,000 14,981,000 10,871,000 9,815,000 
      borrowings, junior subordinated debt securities and other
    2,518,000 3,278,000 3,171,000 3,994,000 4,504,000 5,542,000 7,615,000 8,676,000 10,662,000 9,108,000 7,209,000                  
      total interest expense
    42,382,000 42,334,000 41,525,000 44,621,000 46,997,000 45,171,000 44,277,000 41,597,000 35,572,000 29,210,000 22,112,000 14,150,000 6,037,000 2,405,000 2,376,000 2,697,000 3,058,000 3,273,000 4,122,000 5,620,000 7,572,000 10,331,000 17,553,000 18,617,000 18,797,000 18,234,000 14,365,000 12,677,000 
      net interest income
    89,241,000 86,572,000 83,323,000 83,258,000 84,477,000 83,594,000 83,477,000 85,109,000 87,387,000 88,123,000 88,791,000 89,058,000 83,798,000 75,194,000 67,733,000 68,438,000 68,711,000 68,304,000 70,659,000 69,928,000 69,276,000 70,148,000 70,036,000 61,196,000 60,827,000 60,356,000 59,262,000 36,549,000 
      provision for credit losses
    2,792,000 1,974,000 -3,040,000 -2,462,000 -454,000 422,000 2,627,000 4,237,250 5,498,000 10,529,000 922,000 1,297,500 2,498,000 3,204,000 -512,000 -2,271,750 -3,388,000 -2,561,000 3,137,000 31,073,500 17,485,000 86,759,000 20,050,000      
      net interest income after provision for credit losses
    86,449,000 84,598,000 86,363,000 85,720,000 84,931,000 83,172,000 80,850,000 61,838,000 81,889,000 77,594,000 87,869,000 55,383,750 81,300,000 71,990,000 68,245,000 49,646,750 65,323,000 65,743,000 67,522,000 21,291,500 51,791,000 -16,611,000 49,986,000      
      noninterest income
                                
      net loss on sale of securities
       -1,336,500 -2,199,000 -3,150,000                       
      debit and credit card
    4,722,000 4,588,000 4,188,000 4,627,000 4,688,000 4,713,000 4,235,000 4,540,000 4,690,000 4,645,000 4,373,000 4,421,000 4,768,000 4,756,000 5,063,000 4,466,000 4,579,000 4,744,000 4,162,000 3,829,000 4,171,000 3,612,000 3,482,000 3,475,000 3,501,000 2,974,000 3,141,000  
      service charges on deposit accounts
    4,175,000 4,090,000 3,962,000 4,175,000 4,181,000 4,089,000 3,828,000 4,129,000 4,060,000 3,928,000 4,076,000 4,341,000 4,333,000 4,181,000 3,974,000 4,001,000 3,923,000 3,642,000 3,474,000 2,984,000 2,820,000 2,342,000 3,558,000 3,412,000 3,212,000 3,153,000 3,351,000 3,232,000 
      wealth management
    3,118,000 3,042,000 3,084,000 3,151,000 3,071,000 2,995,000 3,042,000 3,050,000 3,003,000 3,185,000 2,948,000 3,016,000 3,212,000 3,247,000 3,242,000 3,313,000 3,464,000 3,167,000 2,944,000 2,486,000 2,522,000 2,586,000 2,362,000 2,101,000 2,062,000 2,048,000 2,483,000  
      other
    1,748,000 1,780,000 1,490,000 2,596,000 1,781,000 4,404,000 1,448,000 6,058,000 135,000 2,144,000 1,492,000 3,556,000 1,824,000 -20,000 1,932,000 2,225,000 1,534,000 1,809,000 2,252,000 2,398,000 2,507,000 2,974,000 -719,000 3,481,000 3,489,000 2,693,000 2,266,000 3,020,000 
      total noninterest income
    13,763,000 13,500,000 10,429,000 11,071,000 11,877,000 13,305,000 12,830,000 18,057,000 12,182,000 14,191,000 13,190,000 15,643,000 14,760,000 12,630,000 15,226,000 16,103,000 15,846,000 15,424,000 17,236,000 15,609,000 16,483,000 15,224,000 12,403,000 13,063,000 12,901,000 11,362,000 12,042,000 10,457,000 
      noninterest expense
                                
      salaries and employee benefits
    32,180,000 32,907,000 29,853,000 30,816,000 31,274,000 30,388,000 29,512,000 30,949,000 27,521,000 25,391,000 27,601,000 27,998,000 26,700,000 24,811,000 23,712,000 27,144,000 25,228,000 24,515,000 23,327,000 22,789,000 24,571,000 21,419,000 21,335,000 19,936,000 20,290,000 20,910,000 19,769,000 12,698,000 
      data processing and information technology
    4,901,000 4,847,000 4,930,000 5,338,000 5,003,000 4,215,000 4,954,000 4,523,000 4,479,000 4,177,000 4,258,000 4,159,000 4,220,000 4,104,000 4,435,000 4,669,000 4,001,000 3,787,000 4,225,000 3,828,000 4,218,000 3,585,000 3,868,000 3,681,000 3,414,000 3,233,000 2,906,000  
      occupancy
    4,014,000 4,024,000 4,302,000 3,755,000 3,828,000 3,649,000 3,870,000 3,598,000 3,671,000 3,710,000 3,835,000 3,806,000 3,490,000 3,634,000 3,882,000 3,623,000 3,660,000 3,434,000 3,827,000         1,603,000 
      furniture, equipment and software
    3,225,000 3,352,000 3,483,000 3,295,000 3,410,000 3,382,000 3,472,000 3,734,000 3,125,000 3,192,000 2,861,000 2,975,000 2,915,000 2,939,000 2,777,000 2,897,000 2,745,000 2,402,000 2,640,000 3,085,000 2,440,000 3,006,000 2,519,000 2,090,000 2,301,000 2,230,000 2,005,000  
      other taxes
    2,088,000 2,088,000 1,494,000 2,274,000 1,874,000 1,433,000 1,871,000 1,870,000 1,831,000 1,322,000 1,790,000 1,842,000 1,559,000 1,682,000 1,537,000 1,546,000 1,830,000 1,832,000 1,436,000 1,806,000 1,612,000 1,604,000 1,600,000 1,540,000 1,456,000 1,185,000 1,341,000 984,000 
      marketing
    1,255,000 1,490,000 1,615,000 1,622,000 1,382,000 1,404,000 1,943,000 1,435,000 1,741,000 1,459,000 1,853,000 1,348,000 1,367,000 1,524,000 1,361,000 1,345,000 890,000 996,000 1,322,000 2,113,000 1,793,000 979,000 1,111,000 1,062,000 1,310,000 1,141,000 1,023,000 776,000 
      professional services and legal
    1,199,000 1,739,000 1,286,000 1,116,000 1,229,000 1,403,000 1,720,000 1,968,000 1,965,000 2,069,000 1,821,000 2,138,000 1,851,000 2,380,000 1,949,000 1,650,000 1,550,000 1,637,000 1,531,000 1,504,000 1,911,000 1,932,000 1,048,000 1,054,000 1,145,000 1,184,000 1,181,000  
      fdic insurance
    1,071,000 1,062,000 1,040,000 1,045,000 1,054,000 1,053,000 1,049,000 1,049,000 1,029,000 1,032,000 1,012,000 437,000 598,000 882,000 937,000 1,044,000 1,210,000 924,000 1,046,000 1,371,000 1,900,000 1,048,000 770,000 -675,000 695,000 516,000 746,000  
      total noninterest expense
    56,376,000 58,114,000 55,091,000 55,445,000 55,365,000 53,608,000 54,520,000 56,199,000 52,803,000 49,633,000 51,699,000 51,275,000 49,633,000 48,424,000 47,414,000 50,189,000 47,241,000 45,829,000 45,580,000 48,529,000 48,246,000 43,478,000 46,391,000 37,667,000 40,352,000 38,919,000 37,085,000 32,762,000 
      income before taxes
    43,836,000 39,984,000 41,701,000 41,346,000 41,443,000 42,869,000 39,160,000 46,024,000 41,268,000 42,152,000 49,360,000 50,250,000 46,427,000 36,196,000 36,057,000 27,224,000 33,928,000 35,338,000 39,178,000 29,878,000 20,028,000 -44,865,000 15,998,000 31,679,000 31,171,000 27,150,000 33,757,000 -17,940,000 
      income tax expense
    8,874,000 8,084,000 8,300,000 8,281,000 8,853,000 8,498,000 7,921,000 8,977,000 7,800,000 7,685,000 9,561,000 5,857,500 9,178,000 7,338,000 6,914,000 5,144,500 6,330,000 6,971,000 7,276,000 -1,425,750 3,323,000 -11,793,000       
      net income
    34,962,000 31,900,000 33,401,000 33,065,000 32,590,000 34,371,000 31,239,000 37,047,000 33,468,000 34,467,000 39,799,000 40,270,000 37,249,000 28,858,000 29,143,000 22,477,000 27,598,000 28,367,000 31,902,000 24,176,000 16,705,000 -33,072,000 13,231,000 26,936,000 26,101,000 22,928,000 30,881,000 -8,656,000 
      yoy
    7.28% -7.19% 6.92% -10.75% -2.62% -0.28% -21.51% -8.00% -10.15% 19.44% 36.56% 79.16% 34.97% 1.73% -8.65% -7.03% 65.21% -185.77% 141.12% -10.25% -36.00% -244.24% -57.15% -411.18%     
      qoq
    9.60% -4.49% 1.02% 1.46% -5.18% 10.03% -15.68% 10.69% -2.90% -13.40% -1.17% 8.11% 29.08% -0.98% 29.66% -18.56% -2.71% -11.08% 31.96% 44.72% -150.51% -349.96% -50.88% 3.20% 13.84% -25.75% -456.76%  
      earnings per share—basic
    0.91 0.83 0.87 0.86 0.85 0.9 0.82 0.97 0.88 0.89 1.02 0.608 0.95 0.74 0.74 0.563 0.71 0.73 0.81 -0.02 0.43 -0.85 0.34 0.79 0.76 0.67 0.89  
      earnings per share—diluted
    0.91 0.83 0.87 0.86 0.85 0.89 0.81 0.96 0.87 0.89 1.02 0.608 0.95 0.74 0.74 0.56 0.7 0.72 0.81 -0.02 0.43 -0.85 0.34 0.79 0.76 0.66 0.88  
      dividends declared per share
    0.34 0.34 0.34 0.34 0.33 0.33 0.33 0.33 0.32 0.32 0.32 0.223 0.3 0.3 0.29 0.21 0.28 0.28 0.28 0.21 0.28 0.28 0.28 0.27 0.27 0.27 0.25  
      comprehensive income
    42,174 40,133 49,758 16,582 66,016 38,134 24,443 23,555.75 21,875 17,082 55,266 -3,156.75 -10,547 8,730 -10,810 19,466.5 22,964 30,911 23,992 4,491.75 16,926 -29,512 30,573 29,142 33,513 29,104 28,573  
      net gain on sale of securities
      -2,295,000          198,000     29,000    142,000       
      mortgage banking
       221,500 355,000 254,000 277,000 280,000 294,000 289,000 301,000 309,000 425,000 466,000 1,015,000 1,528,000 2,162,000 1,734,000 4,310,000 3,100,000 3,964,000 2,623,000 1,236,000 594,000 637,000 494,000 700,000 1,148,000 
      borrowings and junior subordinated debt securities
               494,500 840,000 615,000 523,000 512,000 619,000 621,000 641,000 825,000 946,000 1,104,000 2,215,000 2,410,000 2,742,000 3,253,000 3,494,000  
      commercial loan swap income
                   569,000 184,000 299,000 95,000 812,000 499,000 945,000 2,484,000      
      merger related expenses
                          2,342,000 552,000 618,000    
      net occupancy
                       3,886,000 3,441,000 3,437,000 3,765,000 2,898,000 2,949,000 3,036,000 2,722,000  
      provision for income taxes
                          2,767,000 4,743,000 5,070,000 4,222,000 2,876,000  
      provision for loan losses
                           4,913,000 2,205,000 5,649,000 462,000  
      net interest income after provision for loan losses
                           56,283,000 58,622,000 54,707,000 58,800,000  
      gain on sale of a majority interest of insurance business
                                
      interest income
                                
      total interest income
                              73,627,000 49,226,000 
      insurance
                              101,000  
      deposits with banks and federal funds sold
                                
      securities sold under repurchase agreements and federal funds purchased
                               46,000 
      short-term borrowings
                               178,000 
      long-term borrowings and junior subordinated debt securities
                               2,638,000 
      benefit from loan losses
                               32,184,000 
      net interest income after benefit from loan losses
                               4,365,000 
      security losses
                               -1,296,000 
      wealth management fees
                               1,912,000 
      letter of credit fees
                               456,000 
      insurance fees
                               1,985,000 
      furniture and equipment
                               1,421,000 
      data processing
                               1,542,000 
      amortization of intangibles
                               589,000 
      fdic assessment
                               3,447,000 
      benefit for income taxes
                               -9,284,000 
      preferred dividends and amortization of discount
                               1,541,000 
      net income available to common shareholders
                               -10,197,000 
      earnings per common share:
                                
      net income – basic
                               -370 
      net income – diluted
                               -370 
      dividends declared per common share
                               150 
      average common shares outstanding – basic
                               27,611,000 
      average common shares outstanding – diluted
                               27,611,000 
    Balance Sheets:
    Quarterly
    Annual
      Unit: USD2025-12-31 2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-09-30 2013-03-31 2012-12-31 2012-09-30 2012-06-30 2011-09-30 2010-09-30 2010-03-31 2009-12-31 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-12-31 2007-06-30 2007-03-31 2006-12-31 2006-06-30 
                                                                          
        assets
                                                                          
        cash and due from banks, including interest-bearing deposits of 106,286 and 175,606 at december 31, 2025 and december 31, 2024
      163,436,000                                                                    
        securities available for sale, at fair value
      987,659,000 1,001,149,000 1,021,183,000 1,011,111,000 987,591,000 1,011,312,000 977,958,000 970,728,000 970,391,000 955,262,000 970,372,000                                                          
        loans held for sale
      1,010,000     307,000 188,000  153,000 257,000 541,000 81,000 16,000 1,039,000 1,311,000 1,346,000 1,522,000 4,303,000 7,648,000 12,794,000 18,528,000 16,724,000 14,259,000 7,309,000 8,371,000 8,135,000 2,706,000 2,371,000 4,207,000 3,801,000 3,283,000 4,485,000 47,936,000 23,120,000 14,355,000 3,793,000 11,694,000 11,999,000 11,739,000 35,321,000 13,794,000 13,634,000 6,126,000 2,970,000 3,126,000 3,102,000 1,133,000 2,136,000 3,695,000 2,580,000 22,499,000 3,188,000 2,275,000 3,959,000 4,070,000 3,109,000 6,073,000 9,283,000 6,178,000 737,000 452,000 1,765,000 885,000 899,000,000 2,020,000 897,000 826,000,000 1,395,000 
        portfolio loans, net of unearned income
      8,071,957,000 7,981,007,000 7,934,434,000 7,836,349,000 7,742,958,000 7,689,054,000 7,713,570,000 7,656,034,000 7,653,341,000 7,515,918,000 7,319,611,000 7,251,064,000 7,183,969,000 7,096,916,000 7,040,894,000 6,963,911,000 6,999,990,000 6,970,087,000 7,007,351,000 7,183,168,000 7,225,860,000 7,394,868,000 7,548,558,000 7,246,745,000 6,195,765,000 6,033,200,000 5,935,452,000 5,946,648,000 5,807,807,000 5,786,118,000 5,730,613,000 5,761,449,000 5,820,758,000 5,757,819,000 5,746,826,000 5,611,419,000 5,418,234,000 5,388,264,000 5,176,748,000 5,027,612,000 4,925,963,000 4,798,498,000 4,683,698,000 3,868,746,000 3,801,189,000 3,725,079,000 3,627,896,000 3,566,199,000 3,511,335,000     3,132,183,000               
        allowance for credit losses
      -93,178,000 -98,155,000 -98,580,000 -99,010,000 -101,494,000 -104,321,000 -106,150,000 -104,802,000 -107,966,000 -108,206,000 -105,757,000 -108,113,000 -101,340,000 -99,694,000 -98,095,000 -99,915,000 -98,576,000    -117,612,000                                                
        portfolio loans
      7,978,779,000 7,882,852,000 7,835,854,000 7,737,339,000 7,641,464,000 7,584,733,000 7,607,420,000 7,551,232,000 7,545,375,000 7,407,712,000 7,213,854,000 7,142,951,000 7,082,629,000 6,997,222,000 6,942,799,000 6,863,996,000 6,901,414,000 6,861,739,000 6,897,715,000 7,068,067,000 7,108,248,000 7,273,870,000 7,433,949,000 7,149,895,000 6,133,650,000 5,971,721,000 5,874,043,000 5,885,652,000 5,747,251,000 5,725,601,000 5,671,567,000 5,705,059,000 5,764,046,000 5,702,468,000 5,691,010,000 5,558,644,000 5,364,441,000 5,336,051,000 5,126,401,000 4,979,465,000 4,876,056,000 4,749,684,000 4,635,592,000 3,820,835,000 3,753,873,000 3,678,499,000 3,581,280,000 3,519,944,000 3,463,352,000 3,381,982,000 3,300,138,000 3,232,878,000 3,148,758,000 3,080,650,000 3,366,913,000 3,395,294,000 3,398,334,000            
        bank owned life insurance
      85,421,000 85,156,000 85,498,000 85,267,000 85,012,000 84,690,000 84,187,000 83,900,000 84,008,000 84,724,000 85,002,000 85,476,000 85,185,000 84,778,000 84,536,000 84,093,000 83,685,000 83,259,000 83,087,000 82,677,000 82,303,000 81,873,000 81,443,000 80,978,000 75,386,000 74,906,000 74,401,000 73,900,000 73,626,000 73,122,000 72,629,000 72,150,000 71,639,000 72,449,000 72,574,000 72,081,000 71,523,000 70,991,000 70,684,000 70,175,000 79,894,000 79,314,000 78,738,000 62,252,000 61,794,000 61,348,000 60,910,000 60,480,000 60,001,000 59,081,000 58,619,000 58,097,000 60,688,000 56,220,000 54,375,000 53,345,000 52,863,000 52,073,000 51,670,000 51,254,000 50,754,000 50,255,000 35,993,000 35,626,000,000 34,896,000 34,570,000 34,251,000,000 33,654,000 
        premises and equipment
      43,855,000 44,146,000 45,019,000 45,319,000 45,033,000 45,917,000 46,959,000 47,956,000 49,006,000 49,522,000 48,838,000 49,126,000 49,285,000 49,802,000 50,913,000 51,671,000 52,632,000 52,727,000 54,173,000 54,720,000 55,614,000 56,254,000 56,441,000 56,659,000 41,876,000 41,688,000 42,199,000 41,730,000 41,403,000 40,889,000 41,635,000 42,702,000 42,888,000 45,019,000 45,322,000 44,999,000 47,122,000 47,025,000 48,395,000 49,127,000 49,106,000 49,032,000 49,660,000 38,166,000 37,240,000 36,665,000 36,239,000 36,615,000 37,792,000 37,975,000 38,676,000 39,273,000 39,605,000 38,729,000 39,678,000 40,015,000 40,990,000 42,715,000 43,459,000 45,304,000 46,233,000 45,776,000 37,928,000 37,629,000,000 37,151,000 36,586,000 35,700,000,000 32,734,000 
        federal home loan bank and other restricted stock, at cost
      16,030,000 15,042,000 15,817,000 13,445,000 15,231,000 11,484,000 12,056,000 13,703,000 25,082,000 38,576,000 31,271,000 30,262,000 23,035,000 10,900,000 7,949,000 9,349,000 9,519,000 9,893,000 10,106,000 12,199,000 13,030,000 15,777,000 15,151,000 28,253,000 25,397,000 22,491,000 19,959,000 29,435,000 31,178,000 35,782,000 29,769,000 29,270,000 33,120,000 33,417,000 29,739,000 31,817,000 28,331,000 27,755,000 23,337,000 23,032,000 20,352,000 23,553,000 19,729,000 15,135,000 18,995,000 15,818,000 11,963,000 13,629,000 15,049,000 13,185,000                   
        goodwill
      373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,424,000 373,417,000 373,289,000 374,270,000 287,446,000 287,446,000 287,446,000 287,446,000 287,446,000 287,446,000 287,446,000 291,670,000 291,670,000 291,670,000 291,670,000 291,670,000 291,670,000 291,670,000 291,670,000 291,764,000 291,683,000 291,204,000 290,617,000 175,820,000 175,820,000 175,820,000 175,820,000 175,820,000 175,820,000 175,820,000 175,733,000 175,733,000 171,457,000 165,273,000 165,273,000 165,273,000 165,167,000 163,933,000 163,926,000 163,546,000 163,333,000 163,059,000 50,300,000 50,087,000,000 50,087,000 50,087,000 49,955,000,000 49,455,000 
        other intangible assets
      2,251,000 2,450,000 2,656,000 2,813,000 3,055,000 3,173,000   4,059,000 4,379,000 4,709,000 5,039,000 5,378,000 5,743,000 6,120,000 6,497,000 6,895,000 7,334,000 7,771,000 8,211,000 8,675,000 9,265,000 9,743,000 10,287,000 2,092,000 2,255,000 2,418,000 2,601,000 2,725,000 2,909,000 3,126,000 3,677,000 3,956,000 4,191,000 4,552,000 4,910,000 5,282,000 5,657,000 6,067,000 6,525,000 7,000,000 7,479,000 7,996,000 2,631,000 2,886,000 3,146,000 3,443,000 3,759,000 4,128,000                    
        other assets
      219,115,000 217,036,000 227,500,000 237,722,000 262,342,000 240,817,000 286,960,000 290,698,000 266,416,000 313,768,000 297,044,000 264,223,000 278,828,000 280,730,000 223,492,000 189,930,000 226,430,000 238,877,000 236,255,000 228,159,000 304,716,000 336,734,000 334,290,000 310,629,000 117,404,000 134,499,000 128,850,000 88,725,000 102,342,000 101,522,000 95,375,000 95,799,000 102,530,000 98,581,000 97,973,000 102,166,000 101,851,000 104,587,000 101,979,000 102,583,000 102,060,000 106,622,000 102,269,000 97,024,000 93,522,000 94,909,000 99,000,000 103,026,000 105,201,000 119,715,000 120,395,000 128,173,000 128,486,000 119,293,000 126,736,000 107,993,000 109,666,000 98,578,000 91,872,000 94,489,000 88,379,000 82,611,000 77,541,000 85,238,000,000 81,232,000 80,138,000 77,994,000,000 77,004,000 
        total assets
      9,870,980,000 9,817,483,000 9,810,069,000 9,718,276,000 9,657,972,000 9,583,947,000 9,635,462,000 9,539,103,000 9,551,526,000 9,466,077,000 9,252,922,000 9,193,442,000 9,110,567,000 8,935,969,000 9,103,814,000 9,432,281,000 9,488,529,000 9,436,054,000 9,495,832,000 9,328,979,000 8,967,897,000 9,190,572,000 9,474,296,000 9,005,496,000 7,571,991,000 7,334,605,000 7,229,262,000 7,252,221,000 7,105,363,000 7,097,346,000 7,005,329,000 7,060,255,000 7,170,179,000 7,086,166,000 7,065,098,000 6,943,053,000 6,718,205,000 6,674,205,000 6,479,162,000 6,318,354,000 6,215,338,000 6,133,728,000 5,971,293,000 4,964,686,000 4,906,744,000 4,788,030,000 4,706,987,000 4,533,190,000 4,588,128,000 4,479,863,000 4,526,702,000 4,422,258,000 4,347,392,000 4,091,970,000 4,098,108,000 4,135,767,000 4,170,475,000 4,243,876,000 4,314,540,000 4,438,368,000 4,461,085,000 4,353,568,000 3,463,806,000 3,421,169,000,000 3,382,057,000 3,376,560,000 3,338,543,000,000 3,301,896,000 
        liabilities
                                                                          
        deposits:
                                                                          
        noninterest-bearing demand
      2,160,645,000 2,188,699,000 2,182,346,000 2,164,491,000 2,185,242,000 2,157,537,000 2,206,589,000 2,188,927,000 2,221,942,000 2,276,009,000 2,330,237,000 2,468,638,000 2,588,692,000 2,663,176,000 2,736,849,000 2,740,315,000 2,748,586,000 2,652,314,000 2,668,833,000 2,539,594,000 2,261,994,000 2,232,706,000 2,250,958,000 1,702,960,000 1,490,409,000 1,462,386,000 1,423,436,000 1,421,156,000 1,412,127,000 1,410,211,000 1,368,350,000 1,387,712,000 1,348,939,000 1,335,768,000 1,300,707,000 1,263,833,000 1,232,469,000 1,220,568,000 1,212,231,000 1,227,766,000 1,188,331,000 1,182,124,000 1,177,623,000 1,083,919,000 1,077,505,000 1,089,999,000 1,032,372,000 992,779,000 974,262,000 951,050,000 960,980,000 928,000,000 887,442,000 817,518,000 743,453,000 709,422,000 712,120,000 629,967,000 625,325,000 600,282,000 600,246,000 593,339,000 471,040,000 462,387,000,000 449,623,000 445,176,000 448,453,000,000  
        interest-bearing demand
      790,278,000 745,904,000 738,251,000 809,722,000 812,768,000 773,224,000 789,317,000 848,729,000 825,787,000 868,624,000 875,174,000 841,130,000 846,653,000 847,825,000 880,432,000 1,070,656,000 979,133,000 971,321,000 979,300,000 976,225,000 864,510,000 982,956,000 1,055,261,000 962,937,000 751,881,000 549,663,000 541,053,000 573,693,000 561,191,000 553,729,000 560,711,000 603,141,000 646,195,000 636,904,000 631,652,000 638,300,000 657,326,000 662,509,000 619,617,000 616,188,000 704,348,000 703,797,000 686,546,000 335,099,000 336,720,000 307,897,000 312,477,000 312,790,000 324,291,000 304,667,000 316,760,000 321,785,000 314,519,000 291,726,000 276,953,000 252,535,000 260,554,000 232,183,000 231,614,000 229,229,000 220,778,000 216,203,000 153,520,000 151,686,000,000 146,002,000 147,952,000 150,568,000,000  
        money market
      2,196,998,000 2,194,702,000 2,236,298,000 2,210,081,000 2,040,285,000 2,074,095,000 2,008,486,000 1,882,157,000 1,941,842,000 1,615,445,000 1,583,717,000 1,599,814,000 1,731,521,000 1,818,642,000 1,888,506,000 1,992,916,000 2,070,579,000 2,045,320,000 2,047,254,000 2,002,857,000 1,937,063,000 2,033,585,000 2,121,588,000 1,967,692,000 1,660,569,000 1,742,334,000 1,700,964,000 1,482,065,000 1,367,181,000 1,267,623,000 1,239,400,000 1,146,156,000 1,036,726,000 950,619,000 985,723,000 936,461,000 764,125,000 700,219,000 643,795,000 605,184,000 593,643,000 633,175,000 617,609,000 376,612,000 295,559,000 301,719,000 360,414,000 281,403,000 308,445,000 326,489,000 361,233,000 316,673,000 305,523,000 255,058,000 246,769,000 250,699,000 289,367,000 192,673,000 256,005,000 283,290,000 215,192,000 212,286,000 167,429,000 144,408,000,000 147,621,000 149,204,000 163,105,000,000 173,615,000 
        savings
      862,118,000 868,019,000 879,254,000 886,007,000 877,859,000 879,653,000 906,794,000 936,056,000 950,546,000 974,940,000 1,018,936,000 1,068,274,000 1,118,511,000 1,128,169,000 1,125,344,000 1,117,985,000 1,110,155,000 1,074,896,000 1,050,256,000 1,036,927,000 969,508,000 938,475,000 916,268,000 836,237,000 753,464,000 754,062,000 767,175,000 784,970,000 817,545,000 845,526,000 876,459,000 893,119,000 940,989,000 1,010,348,000 1,032,864,000 1,050,131,000 1,026,234,000 1,033,077,000 1,047,871,000 1,061,265,000 1,088,217,000 1,093,057,000 1,073,755,000 1,027,095,000 1,048,175,000 1,024,050,000 1,034,388,000 994,805,000 1,039,115,000 993,472,000 965,571,000 949,521,000 911,963,000 772,653,000 746,352,000 753,040,000 752,130,000 745,717,000 776,788,000 821,805,000 844,846,000 897,265,000 882,884,000 946,967,000,000 943,658,000 912,546,000 881,967,000,000 851,962,000 
        certificates of deposit
      1,948,792,000 1,924,619,000 1,884,771,000 1,822,632,000 1,866,963,000 1,770,332,000 1,769,150,000 1,744,478,000 1,581,652,000 1,487,879,000 1,333,146,000 1,175,238,000 934,593,000 952,785,000 981,116,000 1,038,586,000 1,088,071,000 1,201,268,000 1,269,621,000 1,320,425,000 1,387,463,000 1,446,096,000 1,523,841,000 1,588,053,000 1,326,369,000 1,348,255,000 1,400,773,000 1,412,038,000 1,309,465,000 1,316,444,000 1,342,174,000 1,397,763,000 1,431,431,000 1,476,223,000 1,484,379,000 1,383,652,000 1,465,277,000 1,503,945,000 1,494,411,000 1,366,208,000 1,302,870,000 1,247,262,000 1,272,998,000 1,086,117,000 1,143,142,000 1,141,581,000 1,128,630,000 1,090,531,000 1,048,090,000 1,062,886,000 1,033,884,000 1,078,427,000 1,098,526,000 1,134,476,000 1,291,043,000 1,380,120,000 1,290,370,000            
        total deposits
      7,958,831,000 7,921,943,000 7,920,920,000 7,892,933,000 7,783,117,000 7,654,841,000 7,680,336,000 7,600,347,000 7,521,769,000 7,222,897,000 7,141,210,000 7,153,094,000 7,219,970,000 7,410,597,000 7,612,247,000 7,960,458,000 7,996,524,000 7,945,119,000 8,015,264,000 7,876,028,000 7,420,538,000 7,633,818,000 7,867,916,000 7,057,879,000 5,982,692,000 5,856,700,000 5,833,401,000 5,673,922,000 5,467,509,000 5,393,533,000 5,387,094,000 5,427,891,000 5,443,240,000 5,409,862,000 5,435,325,000 5,272,377,000 5,145,431,000 5,120,318,000 5,017,925,000 4,876,611,000 4,877,409,000 4,859,415,000 4,828,531,000 3,908,842,000 3,901,101,000 3,865,246,000 3,868,281,000 3,672,308,000 3,694,203,000 3,638,564,000 3,638,428,000 3,594,406,000 3,517,973,000 3,271,431,000 3,304,570,000 3,345,816,000 3,304,541,000 3,155,852,000 3,244,197,000 3,228,416,000 3,131,882,000 3,114,559,000 2,605,187,000 2,621,825,000,000 2,624,495,000 2,576,887,000 2,565,306,000,000 2,496,909,000 
        short-term borrowings
      165,000,000 135,000,000 150,000,000 95,000,000 150,000,000 225,000,000 275,000,000 285,000,000 415,000,000 630,000,000 530,000,000 495,000,000 370,000,000 35,000,000       75,000,000 83,000,000 84,541,000 410,240,000 370,000,000 295,000,000 235,000,000 470,000,000 535,000,000 600,000,000 525,000,000 540,000,000 685,000,000 645,000,000 610,000,000 660,000,000 565,000,000 550,000,000 355,000,000 356,000,000 280,000,000 230,975,000 199,573,000 290,000,000 265,000,000 185,000,000 100,000,000 140,000,000 175,000,000 50,000,000 75,000,000 25,000,000 75,000,000    51,300,000 195,150,000 113,975,000 308,475,000 377,850,000 275,000,000 140,000,000 80,000,000,000 70,000,000 65,000,000 55,000,000,000 125,000,000 
        long-term borrowings
      50,815,000 50,836,000 50,856,000 50,876,000 50,896,000 64,015,000 39,034,000 39,156,000 39,277,000 39,396,000 39,513,000 14,628,000 14,741,000 14,853,000 21,988,000 22,171,000 22,430,000 22,693,000 22,969,000 23,282,000 23,681,000 49,076,000 49,489,000 50,180,000 69,156,000 69,791,000 70,418,000 70,314,000 45,434,000 46,062,000 46,684,000 47,301,000 12,911,000 13,518,000 14,118,000 14,713,000 15,303,000 15,888,000 116,468,000 117,043,000 117,613,000 118,228,000 18,838,000 19,442,000 20,042,000 20,636,000 21,226,000 21,810,000 22,390,000 23,535,000 34,101,000 40,669,000 35,218,000 32,319,000 29,849,000 45,631,000 85,894,000 116,409,000 141,663,000 180,331,000 190,302,000 190,545,000 200,784,000 201,021,000,000 221,487,000 221,715,000 171,941,000,000 186,427,000 
        junior subordinated debt securities
      49,478,000 49,463,000 49,448,000 49,433,000 49,418,000 49,403,000 49,388,000 49,373,000 49,358,000 49,343,000 54,483,000 54,468,000 54,453,000 54,438,000 54,423,000 54,408,000 54,393,000 64,128,000 64,113,000 64,097,000 64,083,000 64,068,000 64,053,000 64,038,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 50,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 45,619,000 90,619,000 90,619,000 90,619,000 90,619,000 90,619,000 90,619,000 90,619,000 90,619,000   90,619,000   45,619,000 25,000,000,000 25,000,000 25,000,000 25,000,000,000  
        other liabilities
      182,979,000 184,775,000 193,352,000 212,000,000 244,247,000 214,934,000 270,261,000 270,153,000 242,677,000 300,909,000 274,863,000 248,457,000 266,744,000 267,900,000 197,539,000 140,182,000 124,237,000 129,847,000 136,166,000 129,877,000 164,721,000 175,789,000 180,361,000 177,264,000 108,152,000 88,388,000 78,241,000 38,222,000 46,820,000 60,275,000 60,908,000 65,252,000 55,910,000 54,616,000 57,869,000 57,556,000 67,196,000 68,851,000 73,324,000 68,758,000 63,923,000 62,027,000 64,753,000 61,789,000 46,001,000 49,073,000 49,776,000 48,300,000 62,198,000 68,173,000 88,550,000 88,061,000 71,266,000 51,518,000 50,374,000 44,962,000 39,868,000 56,139,000 64,887,000 68,414,000 45,059,000 47,301,000 51,752,000 55,505,000,000 49,026,000 55,847,000 49,224,000,000 46,730,000 
        total liabilities
      8,407,103,000 8,342,017,000 8,364,576,000 8,300,242,000 8,277,678,000 8,208,193,000 8,314,019,000 8,244,029,000 8,268,081,000 8,242,545,000 8,040,069,000 7,965,647,000 7,925,908,000 7,782,788,000 7,925,456,000 8,247,331,000 8,282,075,000 8,234,373,000 8,307,099,000 8,160,701,000 7,813,186,000 8,048,457,000 8,338,519,000 7,829,245,000 6,589,544,000 6,369,652,000 6,286,106,000 6,316,460,000 6,185,582,000 6,190,213,000 6,109,922,000 6,176,224,000 6,282,603,000 6,215,104,000 6,209,918,000 6,101,097,000 5,879,498,000 5,849,155,000 5,668,361,000 5,526,117,000 5,427,535,000 5,362,499,000 5,209,035,000 4,356,297,000 4,300,847,000 4,190,843,000 4,123,336,000 3,961,884,000 4,032,700,000 3,935,249,000 3,989,280,000 3,888,016,000 3,836,816,000 3,488,296,000 3,523,601,000 3,575,024,000 3,617,157,000 3,710,782,000 3,767,264,000 3,989,674,000 4,010,368,000 3,915,069,000 3,114,733,000 3,083,609,000,000 3,064,350,000 3,049,001,000 2,999,492,000,000 2,964,298,000 
        shareholders’ equity
                                                                          
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at december 31, 2025 and december 31, 2024 outstanding—37,402,705 shares at december 31, 2025 and 38,259,449 shares at december 31, 2024
      103,623,000                                                                    
        additional paid-in capital
      412,969,000 411,689,000 410,891,000 412,787,000 411,785,000 410,752,000 409,874,000 409,857,000 409,034,000 407,976,000 406,969,000 407,113,000 406,283,000 405,506,000 404,841,000 403,841,000 403,095,000 403,028,000 402,053,000 401,353,000 400,668,000 400,789,000 400,417,000 400,387,000 212,040,000 211,325,000 210,949,000 210,345,000 209,685,000 216,885,000 216,618,000 216,106,000 215,451,000 214,941,000 214,100,000 213,098,000 212,407,000 211,824,000 211,276,000 210,545,000 210,141,000 209,709,000 209,150,000 78,818,000 78,816,000 78,570,000 78,325,000 78,140,000 77,835,000 77,541,000 77,458,000 77,230,000 65,805,000 52,400,000 51,399,000 51,240,000 51,158,000 47,229,000 47,472,000 43,327,000 43,139,000 42,478,000 26,785,000 27,502,000,000 26,714,000 26,776,000 26,698,000,000 26,487,000 
        retained earnings
      1,120,297,000 1,100,028,000 1,078,166,000 1,059,367,000 1,039,035,000 1,019,033,000 999,115,000 977,195,000 959,604,000 935,162,000 913,974,000 890,840,000 863,948,000 835,684,000 809,644,000 791,345,000 773,659,000 762,374,000 746,472,000 731,718,000 710,061,000 698,351,000 692,240,000 740,726,000 748,280,000 730,577,000 716,078,000 701,819,000 684,361,000 662,112,000 649,925,000 628,107,000 626,283,000 610,504,000 595,105,000 585,891,000 575,192,000 561,132,000 551,229,000 544,228,000 533,442,000 521,056,000 509,575,000 504,060,000 494,909,000 485,277,000 477,790,000 468,158,000 461,044,000 444,115,000 436,039,000 430,936,000 422,731,000 416,616,000 397,964,000 388,291,000 383,118,000 376,569,000 390,915,000 402,608,000 395,367,000 388,233,000 382,869,000 375,654,000,000 361,656,000 355,120,000 349,447,000,000 336,598,000 
        accumulated other comprehensive loss
      -41,707,000 -45,190,000 -52,402,000 -60,635,000 -76,992,000 -60,508,000 -93,934,000 -97,697,000 -90,901,000 -125,636,000 -114,043,000 -96,658,000 -112,125,000 -114,967,000 -67,171,000 -47,043,000        5,672,000 -7,313,000 -9,519,000 -16,931,000 -23,107,000 -33,253,000                     -14,343,000 -13,582,000  -13,389,000 -1,919,000 -3,522,000 -5,095,000 -6,214,000 -13,044,000 -12,792,000          
        treasury stock
      -131,305,000 -94,684,000 -94,785,000 -97,108,000 -97,157,000 -97,146,000 -97,235,000 -97,904,000 -97,915,000 -97,593,000 -97,670,000 -77,123,000 -77,070,000 -76,665,000 -72,579,000 -66,816,000 -66,833,000 -66,315,000 -67,020,000 -69,477,000 -68,612,000 -70,101,000 -69,735,000 -74,157,000 -60,886,000 -57,756,000 -57,266,000 -43,622,000 -31,338,000 -31,245,000 -31,509,000 -32,081,000 -31,880,000 -31,851,000 -31,755,000 -33,575,000 -33,575,000 -33,484,000 -33,914,000 -36,405,000 -36,370,000 -36,341,000 -36,765,000 -38,649,000 -38,649,000 -38,627,000 -40,809,000 -40,291,000 -40,276,000 -40,692,000 -40,486,000 -40,447,000 -40,582,000 -44,441,000 -51,561,000 -53,536,000 -54,399,000 -56,943,000 -57,419,000 -57,540,000 -58,769,000 -63,742,000 -141,010,000 -142,781,000,000 -144,961,000 -130,814,000 -115,393,000,000 -104,161,000 
        total shareholders’ equity
      1,463,877,000 1,475,466,000 1,445,493,000 1,418,034,000 1,380,294,000 1,375,754,000 1,321,443,000 1,295,074,000 1,283,445,000 1,223,532,000 1,212,853,000 1,227,795,000 1,184,659,000 1,153,181,000 1,178,358,000 1,184,950,000 1,206,454,000 1,201,681,000 1,188,733,000 1,168,278,000 1,154,711,000 1,142,115,000 1,135,777,000 1,176,251,000 982,447,000 964,953,000 943,156,000 935,761,000 919,781,000 907,133,000 895,407,000 884,031,000 887,576,000 871,062,000 855,180,000 841,956,000 838,707,000 825,050,000 810,801,000 792,237,000 787,803,000 771,229,000 762,258,000 608,389,000 605,897,000 597,187,000 583,651,000 571,306,000 555,428,000 544,614,000 537,422,000 534,242,000 510,576,000 603,674,000 574,507,000 560,743,000 553,318,000 533,094,000 547,276,000 448,694,000 450,717,000 438,499,000 349,073,000 337,560,000,000 317,707,000 327,559,000 339,051,000,000 337,598,000 
        total liabilities and shareholders’ equity
      9,870,980,000 9,817,483,000 9,810,069,000 9,718,276,000 9,657,972,000 9,583,947,000 9,635,462,000 9,539,103,000 9,551,526,000 9,466,077,000 9,252,922,000 9,193,442,000 9,110,567,000 8,935,969,000 9,103,814,000 9,432,281,000 9,488,529,000 9,436,054,000 9,495,832,000 9,328,979,000 8,967,897,000 9,190,572,000 9,474,296,000 9,005,496,000 7,571,991,000 7,334,605,000 7,229,262,000 7,252,221,000 7,105,363,000 7,097,346,000 7,005,329,000 7,060,255,000 7,170,179,000 7,086,166,000 7,065,098,000 6,943,053,000 6,718,205,000 6,674,205,000 6,479,162,000 6,318,354,000 6,215,338,000 6,133,728,000 5,971,293,000 4,964,686,000 4,906,744,000 4,788,030,000 4,706,987,000 4,533,190,000 4,588,128,000 4,479,863,000 4,526,702,000 4,422,258,000 4,347,392,000 4,091,970,000 4,098,108,000 4,135,767,000 4,170,475,000 4,243,876,000 4,314,540,000 4,438,368,000 4,461,085,000 4,353,568,000 3,463,806,000 3,421,169,000,000 3,382,057,000 3,376,560,000 3,338,543,000,000 3,301,896,000 
        cash and due from banks, including interest-bearing deposits of 122,258 and 175,606 at september 30, 2025 and december 31, 2024
       196,228,000                                                                   
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at september 30, 2025 and december 31, 2024 outstanding—38,350,500 shares at september 30, 2025 and 38,259,449 shares at december 31, 2024
       103,623,000                                                                   
        cash and due from banks, including interest-bearing deposits of 114,607 and 175,606 at june 30, 2025 and december 31, 2024
        203,118,000                                                                  
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at june 30, 2025 and december 31, 2024 outstanding—38,345,448 shares at june 30, 2025 and 38,259,449 shares at december 31, 2024
        103,623,000                                                                  
        cash and due from banks, including interest-bearing deposits of 125,457 and 175,606 at march 31, 2025 and december 31, 2024
         211,836,000                                                                 
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at march 31, 2025 and december 31, 2024 outstanding—38,261,299 shares at march 31, 2025 and 38,259,449 shares at december 31, 2024
         103,623,000                                                                 
        cash and due from banks, including interest-bearing deposits of 175,606 and 160,802 at december 31, 2024 and december 31, 2023
          244,820,000                                                                
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at december 31, 2024 and december 31, 2023 outstanding—38,259,449 shares at december 31, 2024 and 38,232,806 shares at december 31, 2023
          103,623,000                                                                
        cash and due from banks, including interest-bearing deposits of 139,618 and 160,802 at september 30, 2024 and december 31, 2023
           228,090,000                                                               
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at september 30, 2024 and december 31, 2023 outstanding—38,259,730 shares at september 30, 2024 and 38,232,806 shares at december 31, 2023
           103,623,000                                                               
        cash and due from banks, including interest-bearing deposits of 172,549 and 160,802 at june 30, 2024 and december 31, 2023
            246,310,000                                                              
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at june 30, 2024 and december 31, 2023 outstanding—38,256,204 shares at june 30, 2024 and 38,232,806 shares at december 31, 2023
            103,623,000                                                              
        cash and due from banks, including interest-bearing deposits of 143,927 and 160,802 at march 31, 2024 and december 31, 2023
             207,462,000                                                             
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at march 31, 2024 and december 31, 2023 outstanding—38,233,280 shares at march 31, 2024 and 38,232,806 shares at december 31, 2023
             103,623,000                                                             
        cash and due from banks, including interest-bearing deposits of 160,802 and 138,149 at december 31, 2023 and december 31, 2022
              233,612,000                                                            
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at december 31, 2023 and december 31, 2022 outstanding—38,232,806 shares at december 31, 2023 and 38,999,733 shares at december 31, 2022
              103,623,000                                                            
        cash and due from banks, including interest-bearing deposits of 163,117 and 138,149 at september 30, 2023 and december 31, 2022
               238,453,000                                                           
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at september 30, 2023 and december 31, 2022 outstanding—38,244,309 shares at september 30, 2023 and 38,999,733 shares at december 31, 2022
               103,623,000                                                           
        cash and due from banks, including interest-bearing deposits of 150,672 and 138,149 at june 30, 2023 and december 31, 2022
                227,867,000                                                          
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at june 30, 2023 and december 31, 2022 outstanding—38,241,918 shares at june 30, 2023 and 38,999,733 shares at december 31, 2022
                103,623,000                                                          
        cash and due from banks, including interest-bearing deposits of 151,209 and 138,149 at march 31, 2023 and december 31, 2022
                 244,152,000                                                         
        securities, at fair value
                 998,708,000 1,002,778,000 997,428,000 1,068,576,000 1,028,218,000 910,793,000 870,121,000 840,375,000 817,299,000 773,693,000 718,169,000 804,366,000 799,532,000 669,226,000 668,588,000 680,420,000 684,872,000 682,535,000 688,341,000 687,650,000                                      
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at march 31, 2023 and december 31, 2022 outstanding—38,998,156 shares at march 31, 2023 and 38,999,733 shares at december 31, 2022
                 103,623,000                                                         
        cash and due from banks, including interest-bearing deposits of 138,149 and 857,192 at december 31, 2022 and december 31, 2021
                  210,009,000                                                        
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at december 31, 2022 and december 31, 2021 outstanding—38,999,733 shares at december 31, 2022 and 39,351,194 shares at december 31, 2021
                  103,623,000                                                        
        cash and due from banks, including interest-bearing deposits of 61,186 and 857,192 at september 30, 2022 and december 31, 2021
                   134,903,000                                                       
        securities sold under repurchase agreements
                    39,259,000 70,112,000 84,491,000 72,586,000 68,587,000 67,417,000 65,163,000 42,706,000 92,159,000 69,644,000 13,925,000 14,154,000 23,427,000 18,383,000 45,200,000 44,724,000 44,617,000 50,161,000 39,923,000 46,489,000 46,987,000 50,832,000 40,949,000 48,479,000 60,025,000 62,086,000 42,971,000 46,235,000 46,721,000 30,605,000 23,084,000 25,269,000 38,434,000 33,847,000 33,290,000 64,358,000 62,582,000 49,261,000 46,740,000 42,409,000 48,189,000 47,996,000             
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at september 30, 2022 and december 31, 2021 outstanding—39,012,773 shares at september 30, 2022 and 39,351,194 shares at december 31, 2021
                   103,623,000                                                       
        cash and due from banks, including interest-bearing deposits of 263,504 and 857,192 at june 30, 2022 and december 31, 2021
                    344,694,000                                                      
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at june 30, 2022 and december 31, 2021 outstanding—39,148,999 shares at june 30, 2022 and 39,351,194 shares at december 31, 2021
                    103,623,000                                                      
        cash and due from banks, including interest-bearing deposits of 751,378 and 857,192 at march 31, 2022 and december 31, 2021
                     823,757,000                                                     
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at march 31, 2022 and december 31, 2021 outstanding—39,351,688 shares at march 31, 2022 and 39,351,194 shares at december 31, 2021
                     103,623,000                                                     
        cash and due from banks, including interest-bearing deposits of 857,192 and 158,903 at december 31, 2021 and december 31, 2020
                      922,215,000                                                    
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at december 31, 2021 and december 31, 2020 outstanding—39,351,194 shares at december 31, 2021 and 39,298,007 shares at december 31, 2020
                      103,623,000                                                    
        accumulated other comprehensive income
                      -7,090,000 -1,029,000 3,605,000 1,061,000 8,971,000 9,453,000 9,232,000       -30,945,000 -29,953,000 -18,427,000 -12,604,000 -12,858,000 -12,596,000 -13,784,000 -5,643,000 -4,748,000 -8,116,000 -16,457,000 -9,736,000 -13,521,000 -10,028,000 -13,833,000 -7,172,000 -6,026,000 -9,648,000 -12,694,000 -21,168,000   -11,470,000        -13,986,000 -3,305,000 -2,755,000 6,144,000 2,900,000,000 13,000 2,192,000 4,014,000,000 4,389,000 
        cash and due from banks, including interest-bearing deposits of 856,105 and 158,903 at september 30, 2021 and december 31, 2020
                       934,377,000                                                   
        allowance for credit losses on loans
                       -108,348,000 -109,636,000 -115,101,000  -120,998,000 -114,609,000 -96,850,000                                             
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at september 30, 2021 and december 31, 2020 outstanding—39,367,847 shares at september 30, 2021 and 39,298,007 shares at december 31, 2020
                       103,623,000                                                   
        cash and due from banks, including interest-bearing deposits of 897,999 and 158,903 at june 30, 2021 and december 31, 2020
                        985,278,000                                                  
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at june 30, 2021 and december 31, 2020 outstanding—39,345,719 shares at june 30, 2021 and 39,298,007 shares at december 31, 2020
                        103,623,000                                                  
        cash and due from banks, including interest-bearing deposits of 601,134 and 158,903 at march 31, 2021 and december 31, 2020
                         671,429,000                                                 
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at march 31, 2021 and december 31, 2020 outstanding—39,268,359 shares at march 31, 2021 and 39,298,007 shares at december 31, 2020
                         103,623,000                                                 
        cash and due from banks, including interest-bearing deposits of 158,903 and 124,491 at december 31, 2020 and 2019
                          229,666,000                                                
        common stock (2.50 par value)authorized—50,000,000 sharesissued—41,449,444 shares at december 31, 2020 and 2019outstanding—39,298,007 shares at december 31, 2020 and 39,560,304 shares at december 31, 2019
                          103,623,000                                                
        cash and due from banks, including interest-bearing deposits of 235,953 and 124,491 at september 30, 2020 and december 31, 2019
                           308,489,000                                               
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at september 30, 2020 and december 31, 2019 outstanding— 39,251,638 shares at september 30, 2020 and 39,560,304 shares at december 31, 2019
                           103,623,000                                               
        cash and due from banks, including interest-bearing deposits of 277,670 and 124,491 at june 30, 2020 and december 31, 2019
                            351,365,000                                              
        common stock (2.50 par value)
authorized—50,000,000 shares
issued—41,449,444 shares at june 30, 2020 and december 31, 2019
outstanding— 39,263,460 shares at june 30, 2020 and 39,560,304 shares at december 31, 2019
                            103,623,000                                              
        cash and due from banks, including interest-bearing deposits of 113,505 and 124,491 at march 31, 2020 and december 31, 2019
                             187,684,000                                             
        common stock (2.50 par value) authorized—50,000,000 shares issued—41,449,444 shares at march 31, 2020 and december 31, 2019 outstanding— 39,125,425 shares at march 31, 2020 and 39,560,304 shares at december 31, 2019
                             103,623,000                                             
        cash and due from banks, including interest-bearing deposits of 69,021 and 82,740 at september 30, 2019 and december 31, 2018
                              173,609,000                                            
        allowance for loan losses
                              -62,115,000 -61,479,000 -61,409,000 -60,996,000 -60,556,000 -60,517,000 -59,046,000 -56,390,000 -56,712,000 -55,351,000 -55,816,000 -52,775,000 -53,793,000 -52,213,000 -50,347,000 -48,147,000 -49,907,000 -48,814,000 -48,106,000 -47,911,000 -47,316,000 -46,580,000 -46,616,000 -46,255,000 -47,983,000 -45,936,000 -46,484,000 -46,279,000 -46,689,000 -51,533,000 56,281,000 63,023,000 59,580,000            
        operating lease right-of-use assets
                              37,534,000                                            
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at september 30, 2019 and at december 31, 2018 outstanding— 34,244,719 shares at september 30, 2019 and 34,683,874 shares at december 31, 2018
                              90,326,000                                            
        cash and due from banks, including interest-bearing deposits of 62,042 and 82,740 at june 30, 2019 and december 31, 2018
                               122,876,000                                           
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at june 30, 2019 and at december 31, 2018 outstanding— 34,330,338 shares at june 30, 2019 and 34,683,874 shares at december 31, 2018
                               90,326,000                                           
        cash and due from banks, including interest-bearing deposits of 61,327 and 82,740 at march 31, 2019 and december 31, 2018
                                116,820,000                                          
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at march 31, 2019 and at december 31, 2018 outstanding— 34,330,136 shares at march 31, 2019 and 34,683,874 shares at december 31, 2018
                                90,326,000                                          
        cash and due from banks, including interest-bearing deposits of 82,740 and 61,965 at december 31, 2018 and 2017
                                 155,489,000                                         
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at december 31, 2018 and december 31, 2017 outstanding—34,683,874 shares at december 31, 2018 and 34,971,929 shares at december 31, 2017
                                 90,326,000                                         
        cash and due from banks, including interest-bearing deposits of 68,018 and 61,965 at september 30, 2018 and december 31, 2017
                                  132,650,000                                        
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at september 30, 2018 and december 31, 2017 outstanding— 35,006,587 shares at september 30, 2018 and 34,971,929 shares at december 31, 2017
                                  90,326,000                                        
        cash and due from banks, including interest-bearing deposits of 81,210 and 61,965 at june 30, 2018 and december 31, 2017
                                   137,933,000                                       
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at june 30, 2018 and december 31, 2017 outstanding— 35,009,945 shares at june 30, 2018 and 34,971,929 shares at december 31, 2017
                                   90,326,000                                       
        cash and due from banks, including interest-bearing deposits of 67,831 and 61,965 at march 31, 2018 and december 31, 2017
                                    112,849,000                                      
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at march 31, 2018 and december 31, 2017 outstanding— 35,000,502 shares at march 31, 2018 and 34,971,929 shares at december 31, 2017
                                    90,326,000                                      
        cash and due from banks, including interest-bearing deposits of 61,965 and 87,201 at december 31, 2017 and 2016
                                     117,152,000                                     
        securities available-for-sale, at fair value
                                     698,291,000 697,954,000 689,388,000 713,198,000 693,487,000 671,128,000 683,479,000 677,221,000 660,963,000 660,046,000 666,624,000 655,829,000 640,273,000 615,657,000 588,488,000 551,896,000 509,425,000 488,162,000 469,418,000 453,096,000 415,429,000 369,271,000 340,123,000               
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at december 31, 2017 and december 31, 2016 outstanding—34,971,929 shares at december 31, 2017 and 34,913,023 shares at december 31, 2016
                                     90,326,000                                     
        cash and due from banks, including interest-bearing deposits of 59,725 and 87,201 at september 30, 2017 and december 31, 2016
                                      114,440,000                                    
        deposits held for sale
                                      38,960,000                                    
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at september 30, 2017 and december 31, 2016 outstanding— 34,979,192 shares at september 30, 2017 and 34,913,023 shares at december 31, 2016
                                      90,326,000                                    
        cash and due from banks, including interest-bearing deposits of 66,764 and 87,201 at june 30, 2017 and december 31, 2016
                                       125,863,000                                   
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at june 30, 2017 and december 31, 2016 outstanding— 34,980,280 shares at june 30, 2017 and 34,913,023 shares at december 31, 2016
                                       90,326,000                                   
        cash and due from banks, including interest-bearing deposits of 47,469 and 87,201 at march 31, 2017 and december 31, 2016
                                        104,705,000                                  
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at march 31, 2017 and december 31, 2016 outstanding— 34,980,556 shares at march 31, 2017 and 34,913,023 shares at december 31, 2016
                                        90,326,000                                  
        cash and due from banks, including interest-bearing deposits of 87,201 and 41,639 at december 31, 2016 and 2015
                                         139,486,000                                 
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at december 31, 2016 and december 31, 2015 outstanding—34,913,023 shares at december 31, 2016 and 34,810,374 shares at december 31, 2015
                                         90,326,000                                 
        cash and due from banks, including interest-bearing deposits of 68,961 and 41,639 at september 30, 2016 and december 31, 2015
                                          125,163,000                                
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at september 30, 2016 and december 31, 2015 outstanding—34,913,023 shares at september 30, 2016 and 34,810,374 shares at december 31, 2015
                                          90,326,000                                
        cash and due from banks, including interest-bearing deposits of 40,879 and 41,639 at june 30, 2016 and december 31, 2015
                                           94,991,000                               
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at june 30, 2016 and december 31, 2015 outstanding—34,916,358 shares at june 30, 2016 and 34,810,374 shares at december 31, 2015
                                           90,326,000                               
        cash and due from banks, including interest-bearing deposits of 71,200 and 41,639 at march 31, 2016 and december 31, 2015
                                            121,669,000                              
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at march 31, 2016 and december 31, 2015 outstanding—34,901,210 shares at march 31, 2016 and 34,810,374 shares at december 31, 2015
                                            90,326,000                              
        cash and due from banks, including interest-bearing deposits of 41,639 and 57,048 at december 31, 2015 and 2014
                                             99,399,000                             
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at december 31, 2015 and 31,197,365 shares at december 31, 2014 outstanding—34,810,374 shares at december 31, 2015 and 29,796,397 shares at december 31, 2014
                                             90,326,000                             
        cash and due from banks, including interest-bearing deposits of 55,662 and 57,048 at september 30, 2015 and december 31, 2014
                                              115,347,000                            
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at september 30, 2015 and 31,197,365 shares at december 31, 2014 outstanding—34,811,636 shares at september 30, 2015 and 29,796,397 shares at december 31, 2014
                                              90,326,000                            
        cash and due from banks, including interest-bearing deposits of 83,701 and 57,048 at june 30, 2015 and december 31, 2014
                                               146,582,000                           
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at june 30, 2015 and 31,197,365 at december 31, 2014 outstanding—34,812,723 shares at june 30, 2015 and 29,796,397 shares at december 31, 2014
                                               90,326,000                           
        cash and due from banks, including interest-bearing deposits of 69,110 and 57,048 at march 31, 2015 and december 31, 2014
                                                124,737,000                          
        common stock (2.50 par value) authorized—50,000,000 shares issued—36,130,480 shares at march 31, 2015 and 31,197,365 at december 31, 2014 outstanding—34,797,526 shares at march 31, 2015 and 29,796,397 shares at december 31, 2014
                                                90,326,000                          
        cash and due from banks, including interest-bearing deposits of 57,048 and 53,594 at december 31, 2014 and 2013
                                                 109,580,000                         
        common stock (2.50 par value)authorized—50,000,000 sharesissued—31,197,365 shares at december 31, 2014 and 2013outstanding—29,796,397 shares at december 31, 2014 and 29,737,725 shares at december 31, 2013
                                                 77,993,000                         
        cash and due from banks, including interest-bearing deposits of 92,443 and 53,594 at september 30, 2014 and december 31, 2013, respectively
                                                  143,831,000                        
        common stock (2.50 par value) authorized—50,000,000 shares issued—31,197,365 shares at september 30, 2014 and december 31, 2013 outstanding—29,796,397 shares at september 30, 2014 and 29,737,725 shares at december 31, 2013
                                                  77,993,000                        
        cash and due from banks, including interest-bearing deposits of 54,575 and 53,594 at june 30, 2014 and december 31, 2013, respectively
                                                   130,235,000                       
        common stock (2.50 par value) authorized—50,000,000 shares issued—31,197,365 shares at june 30, 2014 and december 31, 2013 outstanding—29,797,204 shares at june 30, 2014 and 29,737,725 shares at december 31, 2013
                                                   77,993,000                       
        cash and due from banks, including interest-bearing deposits of 114,061 and 53,594 at march 31, 2014 and december 31, 2013
                                                    185,303,000                      
        common stock (2.50 par value)authorized—50,000,000 sharesissued—31,197,365 shares at march 31, 2014 and december 31, 2013outstanding—29,718,126 shares at march 31, 2014 and 29,737,725 shares at december 31, 2013
                                                    77,993,000                      
        cash and due from banks, including interest-bearing deposits of 53,594 and 257,116 at december 31, 2013 and 2012
                                                     108,356,000                     
        common stock (2.50 par value) authorized—50,000,000 shares issued—31,197,365 shares at december 31, 2013 and 2012 outstanding—29,737,725 shares at december 31, 2013 and 29,732,209 shares at december 31, 2012
                                                     77,993,000                     
        cash and due from banks, including interest-bearing deposits of 160,420 and 257,116 at september 30, 2013 and december 31, 2012, respectively
                                                      234,928,000                    
        common stock (2.50 par value) authorized—50,000,000 shares issued—31,197,365 shares at september 30, 2013 and december 31, 2012 outstanding—29,738,305 shares at september 30, 2013 and 29,732,209 shares at december 31, 2012
                                                      77,993,000                    
        cash and due from banks, including interest-bearing deposits of 215,438 and 257,116 at march 31, 2013 and december 31, 2012, respectively
                                                       261,124,000                   
        other intangibles
                                                       4,919,000 5,350,000 5,783,000 5,769,000 6,142,000 7,927,000 8,885,000 9,408,000 10,520,000 11,108,000 11,713,000 12,318,000 14,475,000 2,490,000 2,461,000,000 4,702,000 4,830,000 4,985,000,000 5,325,000 
        common stock (2.50 par value) authorized—50,000,000 shares issued—31,197,365 shares at march 31, 2013 and december 31, 2012 outstanding—29,724,721 shares at march 31, 2013 and 29,732,209 shares at december 31, 2012
                                                       77,993,000                   
        cash and due from banks, including interest-bearing deposits of 257,116 and 208,854 at december 31, 2012 and 2011, respectively
                                                        337,711,000                  
        portfolio loans, net of unearned income of 216 and 715 at december 31, 2012 and 2011, respectively
                                                        3,346,622,000                  
        federal home loan bank stock, at cost
                                                        14,485,000 16,628,000 17,839,000 19,175,000 23,542,000 23,542,000 23,542,000            
        common stock (2.50 par value) authorized—50,000,000 shares issued—31,197,365 shares and 29,714,038 shares at december 31, 2012 and 2011, respectively outstanding—29,732,209 shares and 28,131,249 shares at december 31, 2012 and 2011, respectively
                                                        77,993,000                  
        cash and due from banks, including interest-bearing deposits of 284,619 and 208,854 at september 30, 2012 and december 31, 2011, respectively
                                                         347,076,000                 
        portfolio loans, net of unearned income of 188 and 715 at september 30, 2012 and december 31, 2011, respectively
                                                         3,279,157,000                 
        common stock (2.50 par value) authorized—50,000,000 shares issued—31,197,365 shares at september 30, 2012 and 29,714,038 shares at december 31, 2011 outstanding— 29,733,592 shares at september 30, 2012 and 28,131,249 shares at december 31, 2011
                                                         77,993,000                 
        cash and due from banks, including interest-bearing deposits of 343,187 and 208,854 at june 30, 2012 and december 31, 2011, respectively
                                                          403,244,000                
        portfolio loans, net of unearned income of 377 and 715 at june 30, 2012 and december 31, 2011, respectively
                                                          3,195,447,000                
        common stock (2.50 par value) authorized—50,000,000 shares issued—30,404,311 shares at june 30, 2012 and 29,714,038 shares at december 31, 2011 outstanding—28,935,689 shares at june 30, 2012 and 28,131,249 shares at december 31, 2011
                                                          76,011,000                
        cash and due from banks, including interest-bearing deposits of 203,898 and 61,260, respectively
                                                           262,406,000               
        fixed rate cumulative perpetual preferred stock, series a, no par value, 1,000 per share liquidation preference 10,000,000 preferred shares authorized in 2011 and 2010 108,676 shares issued and outstanding in 2011 and 2010
                                                           106,733,000               
        common stock
                                                           74,285,000               
        cash and due from banks
                                                            88,157,000 72,605,000 69,152,000 65,150,000 63,578,000 69,780,000 67,872,000 102,001,000 82,352,000 74,879,000,000 67,953,000 58,734,000 59,980,000,000 62,490,000 
        securities available-for-sale
                                                            277,718,000 328,729,000 354,860,000            
        preferred stock, no par value authorized—10,000,000 shares in 2010 and 2009 issued and outstanding—108,676 in 2010 and 2009
                                                            105,942,000              
        common stock (2.50 par value) authorized—50,000,000 shares in 2010 and 2009 issued—29,714,038 shares in 2010 and 2009 outstanding—27,849,171 shares at september 30, 2010 and 27,746,554 shares at december 31, 2009
                                                            74,285,000              
        fixed rate cumulative perpetual preferred stock, series a, no par value, 1,000 per share liquidation preference authorized—10,000,000 shares in 2010 and 2009 issued and outstanding—108,676 in 2010 and 2009
                                                             105,558,000             
        common stock (2.50 par value) authorized—50,000,000 shares in 2010 and 2009 issued—29,714,038 shares in 2010 and 2009
                                                                          
        outstanding—27,777,931 shares at march 31, 2010 and 27,746,554 shares at december 31, 2009
                                                             74,285,000             
        securities sold under repurchase agreements and federal funds purchased
                                                              44,935,000 96,613,000 111,923,000 113,419,000 174,656,000 197,045,000 71,391,000 100,258,000,000 74,342,000 104,552,000 133,021,000,000 109,232,000 
        fixed rate cumulative perpetual preferred stock, series a, no par value, 1,000 per share liquidation preference authorized—10,000,000 shares in 2009 and 2008 issued and outstanding—108,676 in 2009 and none in 2008
                                                              105,370,000            
        common stock (2.50 par value) authorized—50,000,000 shares in 2009 and 2008 issued—29,714,038 shares in 2009 and 2008 outstanding—27,746,554 shares in 2009 and 27,632,928 shares in 2008
                                                              74,285,000            
        securities available for sale
                                                               385,469,000 406,377,000 452,713,000 467,579,000 440,098,000 346,513,000 358,822,000,000 384,399,000 399,569,000 432,045,000,000 439,037,000 
        other investments
                                                               23,542,000 23,542,000 23,542,000 29,265,000 26,426,000 15,540,000 13,833,000,000 14,213,000 12,815,000 10,562,000,000 16,331,000 
        portfolio loans, net of allowance for loan losses of 57,875 at june 30, 2009 and 42,689 at december 31, 2008
                                                               3,392,613,000           
        time deposits
                                                               1,355,312,000 1,354,465,000 1,293,810,000 1,250,820,000 1,195,466,000 930,314,000 916,377,000,000 937,591,000 922,009,000 921,213,000,000 885,428,000 
        junior subordinated debt
                                                               90,619,000 90,619,000  90,619,000 90,619,000       
        preferred stock, (without par value) authorized – 10,000,000 shares in 2009 and 2008 issued – 108,676 shares in 2009 and none in 2008
                                                               104,998,000 104,815,000          
        common stock (2.50 par value) authorized – 50,000,000 shares in 2009 and 2008 issued – 29,714,038 shares in 2009 and 2008
                                                               74,285,000 74,285,000          
        portfolio loans, net of allowance for loan losses of 59,847 at march 31, 2009 and 42,689 at december 31, 2008
                                                                3,452,830,000          
        portfolio loans, net of allowance for loan losses of 42,689 in 2008 and 34,345 in 2007
                                                                 3,525,290,000         
        preferred stock, without par value, 10,000,000 shares authorized and none outstanding
                                                                          
        common stock (2.50 par value) authorized—50,000,000 shares in 2008 and 2007 issued—29,714,038 shares in 2008 and 2007
                                                                 74,285,000         
        portfolio loans, net of allowance for loan losses of 43,235 at september 30, 2008 and 34,345 at december 31, 2007
                                                                  3,534,900,000        
        common stock (2.50 par value) authorized – 50,000,000 shares in 2008 and 2007 issued – 29,714,038 shares in 2008 and 2007
                                                                  74,285,000 74,285,000 74,285,000      
        portfolio loans, net of allowance for loan losses of 38,796 at june 30, 2008 and 34,345 at december 31, 2007
                                                                   3,427,102,000       
        portfolio loans, net of allowance for loan losses of 35,717 at march 31, 2008 and 34,345 at december 31, 2007
                                                                    2,814,264,000      
        portfolio loans, net of allowance for loan losses of 34,345 in 2007 and 33,220 in 2006
                                                                     2,761,695,000,000     
        common stock (2.50 par value) authorized—50,000,000 shares in 2007 and 2006 issued – 29,714,038 shares in 2007 and 2006
                                                                     74,285,000,000     
        portfolio loans, net of allowance for loan losses of 35,808 at june 30, 2007 and 33,220 at december 31, 2006
                                                                      2,705,404,000    
        common stock (2.50 par value) authorized—50,000,000 shares in 2007 and 2006 issued—29,714,038 shares in 2007 and 2006
                                                                      74,285,000 74,285,000   
        portfolio loans, net of allowance for loan losses of 35,319 at march 31, 2007 and 33,220 at december 31, 2006
                                                                       2,698,334,000   
        portfolio loans, net of allowance for loan losses of 33,220 in 2006 and 36,572 in 2005
                                                                        2,632,245,000,000  
        common stock (2.50 par value) authorized—50,000,000 shares in 2006 and 2005 issued—29,714,038 shares in 2006 and 2005
                                                                        74,285,000,000  
        portfolio loans, net of allowance for loan losses of 38,575 at june 30, 2006 and 36,572 at december 31, 2005
                                                                         2,584,471,000 
        noninterest-bearing
                                                                         442,203,000 
        interest-bearing
                                                                         143,701,000 
        authorized - 50,000,000 shares in 2006 and 2005
                                                                          
        issued - 29,714,038 shares in 2006 and 2005
                                                                         74,285,000 
      Cashflow Statements:
      Quarterly
      Annual
        Unit: USD2025-09-30 2025-06-30 2025-03-31 2024-12-31 2024-09-30 2024-06-30 2024-03-31 2023-12-31 2023-09-30 2023-06-30 2023-03-31 2022-12-31 2022-09-30 2022-06-30 2022-03-31 2021-12-31 2021-09-30 2021-06-30 2021-03-31 2020-12-31 2020-09-30 2020-06-30 2020-03-31 2019-09-30 2019-06-30 2019-03-31 2018-12-31 2018-09-30 2018-06-30 2018-03-31 2017-12-31 2017-09-30 2017-06-30 2017-03-31 2016-12-31 2016-09-30 2016-06-30 2016-03-31 2015-12-31 2015-09-30 2015-06-30 2015-03-31 2014-12-31 2014-09-30 2014-06-30 2014-03-31 2013-12-31 2013-03-31 2012-12-31 2012-09-30 2010-03-31 2009-06-30 2009-03-31 2008-12-31 2008-09-30 2008-06-30 2008-03-31 2007-06-30 2007-03-31 
                                                                   
          operating activities
                                                                   
          net income
               111,313,000 -999,000 -5,332,000 39,799,000 98,271,000   29,143,000     24,176,000 16,705,000 -33,072,000 13,231,000 26,936,000 26,101,000 22,928,000 26,854,000 30,881,000 21,436,000 26,163,000 9,294,000 22,721,000 22,765,000 18,188,000 17,659,000 20,581,000 17,059,000 16,093,000 17,423,000 18,635,000 18,188,000 12,835,000 14,496,000 14,661,000 14,720,000 14,033,000 11,859,000 12,330,000 9,525,000 12,595,000 11,304,000 -8,656,000 -1,842,000 15,800,000 15,686,000 13,861,000 14,856,000 13,875,000 13,298,000 
          adjustments to reconcile net income to net cash from operating activities:
                                                                   
          provision for credit losses
                           7,130,000 17,485,000 86,759,000 20,050,000                                     
          net depreciation, amortization and accretion
                            1,601,000 697,000 1,171,000 1,541,000 1,452,000 1,420,000 1,290,000 1,135,000 1,157,000 1,017,000                              
          net amortization of discounts and premiums on securities
                            1,010,000 1,035,000 1,154,000 908,000 786,000 776,000 793,000 815,000 776,000 796,000 938,000 1,035,000 1,000,000 1,030,000 1,013,000 955,000 946,000 915,000 918,000 880,000                    
          stock-based compensation expense
                           -121,000 372,000 30,000 443,000 840,000 376,000 604,000 660,000 452,000 267,000 512,000 655,000 510,000   682,000 583,000 548,000 731,000 478,000 389,000 529,000 240,000 381,000 199,000 260,000 135,000 179,000 117,000 230,000 205,000          
          loss on sale of securities
                                                                   
          deferred income taxes
                                                        2,837,000 -166,000 -1,083,000 -3,746,000 -5,290,000 -165,000 -2,509,000 -2,298,000 -1,051,000 -124,000 -980,000 
          loss on sale of fixed assets
                                                                   
          gain on sale of loans
                                                                   
          loss on sale and fair value adjustments of other real estate owned
                                                                   
          proceeds from the sale of mortgage loans
                            110,519,000 126,858,000 35,358,000 33,715,000 19,175,000 14,464,000  27,373,000 24,672,000 18,326,000  28,563,000 21,466,000 16,575,000  30,454,000 27,541,000 19,014,000                      
          mortgage loans originated for sale
                           -82,963,000 -109,498,000 -131,911,000 -37,332,000 -33,334,000 -24,214,000 -14,506,000 -21,244,000 -27,267,000 -24,804,000 -16,827,000 -26,847,000 -27,636,000 -23,205,000 -15,694,000 -30,515,000 -29,674,000 -27,353,000 -18,478,000 -25,523,000 -29,891,000 -30,594,000 -21,481,000 -14,190,000 -15,595,000 -8,160,000 -4,897,000 -10,993,000 -17,742,000 -42,004,000 -25,417,000 -21,524,000 -59,727,000 -35,740,000 -3,547,000 -2,070,000 -8,287,000 -3,412,000 -5,511,000 -2,916,000 
          net change in:
                                                                   
          net decrease in interest receivable
                                 -1,963,000                         934,000         
          net increase in interest payable
                                  1,550,000 104,000   901,000 202,000 681,000 -435,000 598,000 -9,000 251,000 875,000            -800,000          
          net decrease in other assets
                                 -3,466,000 9,596,000   4,120,000          11,362,000 -1,091,000 2,945,000 -3,121,000 733,000 6,368,000 3,648,000  1,865,000   1,785,000         
          net increase in other liabilities
                                 5,600,000 -5,747,000 7,375,000 -1,307,000 3,836,000 4,972,000 1,844,000 -3,543,000 1,768,000 -8,199,000 -541,000 -3,140,000 7,267,000 -233,000 2,342,000 -2,872,000 2,061,000   -862,000 2,061,000 1,626,000   15,350,000 6,006,000         
          net cash from operating activities
        97,465,000 56,976,000 28,692,000 54,782,000 27,539,000 44,668,000 46,378,000 39,679,000 54,366,000 35,800,000 41,904,000 35,198,000 51,935,000 66,705,000 86,596,000 44,371,000 43,697,000 37,898,000 90,145,000 56,453,000 28,566,000 28,393,000 -59,961,000 33,898,000 28,437,000 30,459,000 42,832,000 20,692,000 26,702,000 37,791,000 30,805,000 31,312,000 21,812,000 30,307,000 24,405,000 28,397,000 18,328,000 25,666,000 -1,055,000 36,419,000 5,930,000 19,290,000 19,645,000 14,688,000 21,405,000 22,365,000 18,159,000 14,454,000 5,389,000 36,090,000 27,242,000 14,122,000 14,283,000 25,271,000 19,660,000 11,908,000 19,166,000 8,320,000 20,170,000 
          capital expenditures
          free cash flows
        97,465,000 56,976,000 28,692,000 54,782,000 27,539,000 44,668,000 46,378,000 39,679,000 54,366,000 35,800,000 41,904,000 35,198,000 51,935,000 66,705,000 86,596,000 44,371,000 43,697,000 37,898,000 90,145,000 56,453,000 28,566,000 28,393,000 -59,961,000 33,898,000 28,437,000 30,459,000 42,832,000 20,692,000 26,702,000 37,791,000 30,805,000 31,312,000 21,812,000 30,307,000 24,405,000 28,397,000 18,328,000 25,666,000 -1,055,000 36,419,000 5,930,000 19,290,000 19,645,000 14,688,000 21,405,000 22,365,000 18,159,000 14,454,000 5,389,000 36,090,000 27,242,000 14,122,000 14,283,000 25,271,000 19,660,000 11,908,000 19,166,000 8,320,000 20,170,000 
          investing activities
                                                                   
          purchases of securities
        -122,905,000 -113,637,000 -85,052,000 -91,133,000 -98,804,000 -89,372,000 -34,243,000 -34,435,000 -33,423,000 -20,499,000 -11,226,000 -47,966,000 -41,119,000 -100,704,000 -211,265,000  -73,384,000 -64,549,000 -89,038,000  -10,056,000 -50,000,000 -30,292,000 -27,685,000 -1,000 -9,437,000 -13,529,000 -24,587,000 -26,916,000 -27,565,000                              
          proceeds from maturities, prepayments and calls of securities
        95,298,000 57,437,000 29,665,000 45,664,000 49,136,000 37,788,000 27,018,000 51,743,000 34,435,000 33,392,000 28,140,000 43,453,000 37,618,000 35,734,000 44,025,000  36,548,000 38,236,000 34,715,000  94,947,000 47,287,000 33,869,000 28,646,000 20,067,000 20,193,000 18,400,000 25,946,000 23,383,000 22,104,000                              
          proceeds from sales of securities
        47,038,000 47,038,000 47,038,000 43,528,000 46,140,000 46,659,000 74,000                                                  
          (purchases) redemptions of federal home loan bank stock
         -586,000                                                          
          net increase in loans
        -241,450,000 -192,294,000 -93,312,000 -53,695,000 22,472,000 -57,012,000 -18,004,000  -199,735,000           156,116,000 140,573,000   -167,478,000   -142,846,000 -26,430,000   56,366,000 -91,364,000 -25,330,000 -151,438,000 -192,971,000 -37,281,000 -217,248,000 -151,841,000 -107,293,000 -134,371,000 -111,323,000 -30,588,000 -68,428,000 -75,627,000 -106,460,000 -62,749,000 -63,739,000 -39,284,000      2,832,000 -113,954,000 -126,860,000 -53,848,000 -8,306,000 -68,336,000 
          proceeds from sale of portfolio loans
        275,000   8,923,000 3,308,000 6,386,000 1,947,000                                               
          proceeds from sale of other real estate owned
           -42,000 96,000   7,021,000 6,000      6,285,000                                             
          purchases of premises and equipment, net of proceeds from sales
        -3,520,000 -2,916,000 -1,726,000                                                         
          proceeds from life insurance settlement
        1,381,000 218,000 218,000 219,000 200,000 584,000 1,099,000 259,000                                                   
          net payments from cash flow hedge
        -5,212,000 -3,972,000 -2,031,000 -5,111,000 -1,459,000 -1,374,000 -3,536,000                                                     
          net cash from investing activities
        -228,906,000 -208,712,000 -103,414,000 -65,175,000 17,457,000 -62,236,000 -8,338,000 -115,390,000 -208,004,000 -67,431,000 -53,394,000 -91,980,000 -33,428,000 -150,239,000 -122,940,000 -98,151,000 -17,205,000 146,988,000 -19,652,000 99,820,000 223,359,000 -358,644,000 -125,636,000 -170,828,000 -83,711,000 23,701,000 -137,815,000 -18,454,000 -73,852,000 28,157,000 57,449,000 -101,935,000 -1,417,000 -166,512,000 -234,480,000 -23,742,000 -222,699,000 -135,732,000 -102,238,000 -124,930,000 -134,832,000 -43,737,000 -87,944,000 -109,075,000 -139,592,000 -100,437,000 -83,143,000 -52,697,000 -110,841,000 -6,976,000 28,555,000 45,956,000 97,841,000 28,032,000 -148,384,000 -56,441,000 -39,005,000 617,000 -41,203,000 
          financing activities
                                                                   
          net increase in demand, money market and savings deposits
        81,170,000 119,995,000 154,147,000                                                         
          net increase in certificates of deposit
        57,656,000 17,808,000 -44,331,000 96,631,000 1,184,000 24,675,000 162,831,000 93,778,000 154,742,000 157,927,000 240,664,000                102,600,000 -6,948,000 -25,698,000 -55,557,000 -33,916,000 -31,379,000 -8,372,000 100,799,000 -81,517,000 -38,536,000 9,263,000 128,885,000 63,608,000 55,998,000 -24,980,000 -43,417,000 -57,040,000 1,519,000 12,911,000 38,061,000 42,389,000 28,808,000  -20,654,000 89,713,000         
          net increase in short-term borrowings
           -75,000,000 -50,000,000 -10,000,000 -130,000,000 -215,000,000 100,000,000 35,000,000 125,000,000 335,000,000           128,921,000    -65,000,000 -65,000,000 75,000,000 -15,000,000 -145,000,000 40,000,000   95,000,000 15,000,000   76,000,000 49,026,000   25,000,000 80,000,000   -35,000,000     81,175,000 -194,500,000 -69,375,000 102,850,000 135,000,000 60,000,000 5,000,000 10,000,000 
          proceeds from long-term borrowings
           25,000,000                                            15,603,000 -15,603,000 20,000,000 50,000,000 
          repayments on long-term borrowings
        -60,000 -40,000 -20,000 -38,119,000 -19,000 -122,000 -121,000 -118,000 -5,118,000 -115,000 -113,000  -7,135,000 -183,000 -259,000  -276,000 -313,000 -399,000  1,072,000 -2,176,000 -688,000 -628,000                                    
          repurchase of shares for taxes on restricted stock
        -1,665,000 -1,536,000 -41,000 -21,000 -68,000 -744,000 -37,000 -277,000 -39,000 -463,000 -19,000 -310,000 -64,000                                               
          cash dividends paid to common shareholders
        -39,252,000 -26,193,000 -13,017,000 -13,013,000 -12,636,000 -12,709,000 -12,616,000 -12,612,000 -12,315,000 -12,403,000 -12,378,000 -12,083,000 -11,724,000 -11,771,000 -11,374,000 -11,371,000 -10,991,000 -10,988,000 -10,975,000 -10,977,000 -10,960,000 -10,961,000 -11,051,000 -9,239,000 -9,242,000 -9,317,000 -9,424,000 -8,724,000 -8,722,000 -7,669,000 -7,670,000 -6,972,000 -6,967,000 -6,960,000 -6,960,000 -6,613,000 -6,610,000 -6,601,000 -6,601,000 -6,278,000 -6,251,000 -5,357,000 -5,345,000 -5,048,000 -5,052,000 -4,758,000 -4,758,000 -4,460,000 -4,460,000 -4,341,000 -4,163,000         
          repurchase of common stock
                  -3,484,000        -12,559,000 -3,100,000 -2,835,000 -12,287,000                                  
          net cash from financing activities
        82,849,000 110,034,000 41,738,000 27,123,000 -63,216,000 56,416,000 -64,190,000 70,870,000 164,224,000 15,346,000 45,633,000 131,888,000 -228,298,000 -395,529,000 -62,114,000 41,618,000 -77,393,000 128,963,000 371,270,000 -235,096,000 -294,801,000 493,932,000 175,458,000 187,663,000 61,330,000 -92,829,000   72,234,000 -70,251,000 -85,542,000 59,200,000 763,000 101,424,000 224,398,000 25,517,000 177,693,000 132,336,000 87,345,000 57,276,000 150,747,000 39,604,000 34,048,000 107,983,000 63,119,000 155,019,000 -61,588,000 -38,344,000 96,087,000 -85,282,000 -52,344,000 -58,506,000 -118,326,000   64,182,000 27,312,000 282,000 19,787,000 
          net increase in cash and due from banks
         -41,702,000  16,730,000 -18,220,000 38,848,000 -26,150,000 -4,841,000                                                    
          cash and due from banks at beginning of period
        244,820,000 244,820,000 244,820,000 233,612,000                                                    
          cash and due from banks at end of period
        196,228,000 203,118,000 211,836,000 16,730,000 -18,220,000 38,848,000 207,462,000 -4,841,000                                                    
          see notes to consolidated financial statements
                                                                   
          redemptions of federal home loan bank stock
        189,000                                                           
          net decrease in short-term borrowings
        -15,000,000  -55,000,000               -8,000,000 -1,541,000     -235,000,000        -50,000,000    -1,000,000    -159,150,000    -40,000,000  -25,000,000   -51,300,000         
          net decrease in cash and due from banks
        -48,592,000  -32,984,000                                                         
          supplemental disclosures
                                                                   
          right of use assets obtained in exchange for lease obligations
        2,400,000 2,400,000 2,400,000      576,000 1,270,000                                                 
          cash paid for interest
        130,566,000 86,041,000 44,058,000  42,788,000 41,990,000 40,656,000  33,580,000 23,264,000 18,095,000  5,124,000 2,521,000 2,507,000                                             
          cash paid for income taxes, net of refunds
        17,940,000 11,113,000 93,000  10,491,000 9,510,000 140,000  4,102,000 23,632,000 -7,000  7,500,000 12,150,000 75,000                                             
          see notes to condensed consolidated financial statements
                                                                   
          numerator for earnings per share—basic and diluted:
                                                                   
          net income—treasury stock method—basic and diluted
        34,962,000 31,900,000 33,401,000                                                         
          less: income allocated to participating shares
                -1,000 -12,000 45,000    109,000                                             
          net income allocated to shareholders—two-class method—basic and diluted
        34,962,000  33,401,000                                                         
          denominator for earnings per share—treasury stock method:
                                                                   
          weighted-average shares outstanding—basic
        38,346,949,000 38,337,851,000 38,260,746,000      -335,968,000 -354,897,000 38,865,669,000    39,073,754,000                                             
          add: potentially dilutive shares
        248,169,000 299,549,000 338,910,000       -34,507,000 166,393,000                                                 
          denominator for treasury stock method—diluted
        38,595,118,000 38,637,400,000 38,599,656,000       -389,404,000 39,032,062,000                                                 
          denominator for earnings per share—two-class method:
                                                                   
          add: average participating shares outstanding
        248,169,000        57,962,000 -5,741,000 108,991,000    16,179,000                                             
          denominator for two-class method—diluted
        38,595,118,000  38,260,746,000      -278,006,000 -360,638,000 38,974,660,000    39,089,933,000                                             
          earnings per share—basic
        910 830 870      -10 -130 1,020    740                                             
          earnings per share—diluted
        910 830 870      -20 -130 1,020    740                                             
          restricted stock considered anti-dilutive excluded from potentially dilutive shares
        3,000 55,000       -2,610,000 2,198,000 1,133,000                                                 
          level 1
                                                                   
          assets
                                                                   
          available-for-sale debt securities:
                                                                   
          u.s. treasury securities
            4,660,000 -19,137,000 132,586,000                                                     
          collateralized mortgage obligations of u.s. government corporations and agencies
                                                                   
          residential mortgage-backed securities of u.s. government corporations and agencies
                                                                   
          commercial mortgage-backed securities of u.s. government corporations and agencies
                                                                   
          obligations of states and political subdivisions
                                                                   
          total available-for-sale debt securities
            4,660,000 -19,137,000 132,586,000                                                     
          equity securities
            336,000 3,184,000 935,000                                                     
          total securities available for sale
            4,996,000 -15,953,000 133,521,000                                                     
          securities held in a deferred compensation plan
            297,000 246,000 10,257,000                                                     
          derivative financial assets:
                                                                   
          interest rate swap contracts - commercial loans
                                                                   
          interest rate lock commitments - mortgage loans
                                                                   
          total assets
            5,293,000 -15,707,000 143,778,000                                                     
          liabilities
                                                                   
          derivative financial liabilities:
                                                                   
          interest rate swap contracts - cash flow hedge
                                                                   
          total liabilities
                                                                   
          obligations of u.s. government corporations and agencies
                                                                   
          redemption of federal home loan bank stock
          1,786,000                                                         
          redemption (purchases) of federal home loan bank stock
           -3,747,000 572,000 1,647,000 11,379,000                                                     
          purchases of premises and equipment
           -860,000 -725,000 -766,000 -643,000 -1,298,000 -2,234,000 -1,248,000 -1,439,000 -986,000 -1,321,000 -896,000 -660,000 -1,501,000 -184,000 -1,115,000 -811,000 -1,060,000 -1,494,000 -1,433,000 -1,429,000 -1,495,000 -802,000 -1,757,000 -1,584,000 -1,784,000 -495,000 -309,000 -1,048,000 -628,000 -2,273,000 -745,000 -816,000 -1,384,000 -892,000 -468,000 -1,396,000 -1,272,000 -1,616,000 -849,000 -1,859,000 -1,501,000 -1,262,000 -457,000 -234,000 -652,000 -400,000 -217,000 -123,000 -641,000 -679,000 108,000 -1,508,000 -1,341,000 -1,198,000 -1,415,000 -1,703,000 
          proceeds from the sale of premises and equipment
           2,000 29,000 -83,000 110,000 12,000 -7,000 648,000 57,000 -90,000 120,000 75,000 56,000 -60,000 74,000 8,000    35,000   25,000 1,000 109,000 46,000 103,000 257,000 16,000 37,000 17,000 3,000 203,000 237,000 20,000 7,000 -2,000 34,000 64,000 18,000 142,000 114,000 26,000 410,000 1,187,000       
          net decrease in demand, money market and savings deposits
           31,645,000 -26,677,000 55,316,000 -84,247,000                                                     
          transfers of loans to other real estate owned
            1,000 48,000 65,000  59,000 18,000 11,000  5,000    12,302,000 13,000 77,000  118,000 403,000 110,000 277,000 135,000 80,000      709,000 1,010,000 397,000  350,000 182,000 49,000  491,000    156,000 88,000 186,000              
          net income allocated to shareholders
                -998,000 -5,320,000 39,754,000    29,034,000                                             
          interest rate swaps - commercial loans
                                                                   
          interest rate swaps - cash flow hedge
                                                                   
          denominator for earnings per share—treasury stock method—basic and diluted:
                                                                   
          denominator for earnings per share—two-class method—basic and diluted:
                                                                   
          gain on sale of securities
                                                                  
          (purchases) redemption of federal home loan bank stock
               13,494,000                                                    
          net decrease in loans
                  -63,646,000 -90,484,000   38,449,000 -47,453,000 19,309,000      -122,507,000   4,760,000                         1,063,000         
          denominator for earnings per share—basic:
                                                                   
          denominator for earnings per share—two-class method—diluted:
                                                                   
          (redemption) purchases of federal home loan bank stock
                                                                   
          net decrease in core deposits
                                                           -89,191,000 -44,874,000       
          net increase in cash and cash equivalents
                 -16,285,000 34,143,000 75,106,000 -209,791,000 -479,063,000 -98,458,000 -12,162,000 -50,901,000 313,849,000 441,763,000 -78,823,000 -42,876,000   50,733,000   22,839,000 -5,283,000   2,712,000   -34,781,000 14,323,000 30,172,000 -26,678,000 22,270,000 -15,948,000 -31,235,000 21,845,000 15,157,000 -34,251,000 13,596,000 -55,068,000 76,947,000 -126,572,000 -76,587,000 -9,365,000 -56,168,000 3,453,000         
          cash and cash equivalents at beginning of period
                 210,009,000  922,215,000  229,666,000  197,823,000 155,489,000  117,152,000  139,486,000  99,399,000  109,580,000  108,356,000  337,711,000   69,780,000  74,879,000 59,980,000 
          cash and cash equivalents at end of period
                 -16,285,000 244,152,000  -209,791,000 -479,063,000 823,757,000  -50,901,000 313,849,000 671,429,000  -42,876,000 163,681,000 187,684,000 50,733,000 6,056,000 116,820,000  -5,283,000 25,084,000 112,849,000  -11,423,000 21,158,000 104,705,000  30,172,000 -26,678,000 121,669,000  -31,235,000 21,845,000 124,737,000  13,596,000 -55,068,000 185,303,000  261,124,000  -56,168,000 72,605,000 1,572,000 63,578,000  -34,129,000 19,649,000 82,352,000 9,219,000 58,734,000 
          denominator for earnings per share—treasury stock method—diluted:
                                                                   
          marketable equity securities
                                                                   
          proceeds from redemption of federal home loan bank stock
                  15,174,000 16,571,000 6,721,000                                               
          purchases of federal home loan bank stock
                  -22,401,000 -28,705,000 -9,672,000                                               
          net increase in core deposits
                  -307,521,000 -172,434,000 -173,320,000 -290,741,000 13,419,000 164,602,000 -1,792,000 190,040,000 522,528,000 -154,648,000 -156,353,000 874,249,000 28,684,000 147,878,000 75,817,000 170,744,000 103,839,000 80,955,000 32,169,000 14,793,000        13,688,000 -64,136,000 -37,615,000 56,621,000 240,719,000 64,766,000 34,294,000 -15,986,000 157,874,000 -64,337,000 -28,866,000 88,565,000 -8,568,000    53,544,000 -38,031,000 -48,837,000 -27,896,000 32,026,000 10,784,000 
          numerator for earnings per share—basic and diluted
                                                                   
          denominator for earnings per share—two class method —diluted:
                                                                   
          total securities
                                                                   
          interest rate lock commitments
                                                                   
          depreciation and amortization
                                                 1,460,000 1,193,000 1,201,000 1,194,000 1,115,000 1,013,000 1,590,000 1,694,000 1,845,000 1,713,000 1,679,000 1,663,000 1,472,000 1,409,000 1,176,000 964,000 931,000 897,000 
          net amortization of discounts and premiums
                                                 913,000 880,000 902,000 932,000 966,000 1,069,000 861,000            
          securities losses
                                                                   
          gain on sale and fair value adjustments of other real estate owned
                                                                   
          gain on the sale of loans
                                                -394,000 -203,000 -121,000 -147,000 -63,000 -22,000 -98,000 -329,000 -533,000 -480,000 -244,000 -260,000 -180,000  -115,000 -32,000 -31,000 -102,000 -102,000 
          pension contribution
                                                                  
          proceeds from sale of mortgage loans
                                                                   
          proceeds from the sale of portfolio loans
                                                                   
          proceeds from settlement of bank owned life insurance
                                                                   
          net (decrease) in certificates of deposit
                   -18,173,000                                                
          net increase in securities sold under repurchase agreements
                   -39,259,000 -30,853,000 -14,379,000 11,905,000 3,999,000 1,170,000 2,254,000 22,457,000 -49,453,000 22,515,000 49,756,000   5,044,000         9,884,000 -7,531,000 -11,546,000 -2,061,000 19,115,000 -3,264,000 -486,000 16,116,000   -13,165,000 4,587,000 557,000 1,775,000   3,061,000         
          repayments of long-term borrowings
                                  -120,000 -628,000 -622,000 -617,000 -610,000 -607,000 -600,000 -595,000 -590,000 -585,000 -100,580,000 -575,000 -570,000 -615,000 -609,000 -605,000 -599,000 -594,000 -590,000 -584,000 -580,000 -10,566,000 -6,568,000 -556,000 -40,263,000 -25,254,000 -38,668,000 -9,971,000 -15,846,000 -51,615,000 -20,237,000 -228,000 -226,000 
          repurchase of s&t stock
                                                                   
          cash and cash equivalents at beginning of year
                                                          69,152,000         
          cash and cash equivalents at end of year
                                                                   
          loans transferred to held for sale
                        1,669,000 2,798,000         3,773,000 1,862,000 2,060,000                             
          denominator for earnings per share - basic and diluted:
                                                                   
          corporate obligations
                                                                   
          forward sale contracts - mortgage loans
                                                                   
          net decrease in certificates of deposit
                     -57,450,000 -49,465,000 -113,177,000 -68,333,000 -50,779,000 -67,003,000  -77,566,000 -63,965,000 -7,042,000   -11,241,000                                  
          proceeds from redemption of fhlb stock
                      5,818,000                                             
          purchases of fhlb stock
                      -5,648,000                                             
          treasury shares issued-net
                      -56,000  -167,000 -135,000  -31,000 -563,000 -24,000 -15,000 -876,000 -657,000 -1,000 1,000 -495,000 -194,000 1,000   -71,000 -32,000 -79,000                  
          provision for unfunded loan commitments
                                                                   
          net decrease in interest payable
                                 -789,000    -720,000         444,000 -162,000 -101,000 -374,000 296,000 -237,000 98,000 -284,000 225,000 -1,094,000   -530,000         
          purchases of securities available-for-sale
                                      -87,140,000 -33,095,000 -36,604,000 -60,080,000 -7,851,000 -20,263,000 -25,168,000 -20,247,000 289,000 -48,381,000 -6,373,000 -31,945,000 -40,423,000 -48,286,000 -60,559,000 -42,333,000 -33,302,000 -47,929,000 -65,576,000 -30,576,000         
          proceeds from maturities, prepayments and calls of securities available-for-sale
                                      22,355,000 23,345,000 18,314,000 16,942,000 22,061,000 17,326,000 17,695,000 17,028,000 13,462,000 10,584,000 19,707,000 6,389,000 10,430,000 10,319,000 14,745,000 21,598,000 16,567,000 13,426,000 8,482,000 28,928,000          
          proceeds from sales of securities available-for-sale
                                      58,050,000 7,169,000 582,000         94,000 3,571,000 1,387,000         
          proceeds from the sale of loans not originated for resale
                                                                   
          net cash acquired from bank acquisitions
                                                                  
          treasury shares issued - net
                                                                   
          repurchase common stock
                                                                   
          costs to issue equity securities
                                                                   
          net proceeds from sales of federal home loan bank stock
                        213,000    -626,000                                       
          interest paid
                        3,086,000 3,746,000 5,368,000  7,716,000 11,926,000 17,795,000 18,435,000 19,589,000 19,023,000  14,262,000 11,759,000 11,817,000  9,313,000 7,663,000 7,706,000  6,363,000 5,890,000 4,508,000  4,234,000 3,838,000 3,781,000  3,312,000 2,920,000 3,358,000 2,900,000 5,268,000 4,754,000 5,754,000 1,917,000         
          income taxes paid, net of refunds
                        7,086,000 11,900,000 197,000  6,000,000 210,000 6,621,000 3,125,000 1,432,000  4,625,000 10,995,000 108,000  7,697,000 13,227,000 172,000  4,500,000 11,680,000 1,794,000  6,400,000 7,775,000 1,500,000  4,500,000   5,000,000 -45,000            
          net proceeds from sales (purchases of) of federal home loan bank stock
                          831,000                                         
          net decrease (increase) in loans
                          33,937,000           27,717,000                    10,717,000  27,589,000 51,071,000       
          proceeds from sale of loans not originated for resale
                          640,000     55,000 465,000  3,773,000 1,862,000 2,060,000  924,000 2,657,000  6,006,000        1,300,000                
          net decrease (increase) in short-term borrowings
                          -75,000,000                                         
          leased right-of-use operating assets and lease liabilities
                                                                  
          gain on the sale of majority interest of insurance business
                                  -1,873,000                              
          net increase in interest receivable
                                  -129,000 -986,000   1,172,000 -3,220,000 -604,000 -62,000 1,610,000 -534,000 -717,000 -2,768,000 -464,000 262,000 -254,000 -2,288,000 -329,000 -361,000 300,000 -543,000 -109,000 -776,000            
          net proceeds from (purchases of) the redemption of federal home loan bank stock
                                                                   
          proceeds from the sale of majority interest of insurance business
                                  4,540,000                              
          sale of treasury shares
                                                        85,000          
          repurchase warrant
                                                                   
          gain on the sale of mortgage loans
                            -3,486,000 -1,897,000 -536,000 -617,000 -390,000 -293,000 -342,000 -512,000 -387,000 -296,000  -342,000 -526,000 -193,000  -475,000 -448,000 -231,000                      
          interest receivable
                            -2,231,000 -3,227,000 26,000 523,000                                    
          interest payable
                            -45,000 -1,595,000 -242,000 183,000                                    
          other assets
                            -92,564,000 71,462,000 -149,186,000 -20,564,000                                    
          other liabilities
                            -3,038,000 5,132,000 55,902,000 18,759,000                                    
          common stock issuance costs
                                                                  
          collateral receivable
                                                                   
          net (purchases of) proceeds from sales of federal home loan bank stock
                              -5,277,000                                     
          net decrease in cash and cash equivalents
                              -10,139,000   -38,669,000    -4,303,000                              
          leased right-of-use operating assets and lease liabilities added to the balance sheet
                              91,000 1,656,000                                    
          provision for loan losses
                               4,913,000 2,205,000 5,649,000                                  
          provision for (recovery of) unfunded loan commitments
                                                                   
          net proceeds from sales (purchases) of federal home loan bank stock
                               -2,906,000 -2,533,000 9,477,000                                  
          net decrease in securities sold under repurchase agreements
                                  -26,817,000 476,000 107,000 -5,544,000  -6,566,000 -498,000 -3,845,000                          
          repurchase of warrant
                                                                   
          transfer net assets to investment in insurance company partnership
                                   1,917,000                              
          net increase in provision for unfunded loan commitments
                                                                   
          net (decrease) in securities sold under repurchase agreements
                                                                   
          net increase in unfunded loan commitments
                                 35,000                                  
          proceeds (repayments), net on long-term borrowings
                                 104,000                                  
          leased right-of-use assets and lease liabilities added to the balance sheet
                                 35,686,000                                  
          benefit from loan losses
                                    9,345,000 2,472,000 982,000 2,849,000 4,869,000 5,183,000 5,586,000 2,516,000 4,849,000 5,014,000 3,915,000 3,207,000 2,059,000 1,207,000 1,107,000 1,453,000 -1,134,000 289,000 1,562,000 2,307,000 4,215,000 2,304,000 4,430,000 32,184,000 21,389,000 5,561,000 6,156,000 -118,000 1,279,000 1,305,000 2,178,000 
          (recovery) benefit from unfunded loan commitments
                                                                   
          gain on sale of bank branch
                                                                   
          net gain on sale of credit card portfolio
                                                                   
          pension plan curtailment gain
                                          -1,017,000                      
          proceeds from the sale of loans
                                                20,231,000 21,777,000 14,467,000 14,419,000 7,553,000 5,922,000 10,392,000 37,661,000 23,225,000 24,985,000 24,488,000 56,443,000 30,478,000 3,308,000 3,498,000 7,439,000 3,457,000 4,420,000 3,017,000 
          (gain) loss on sale of fixed assets
                                                                   
          net (purchases) sales of federal home loan bank stock
                                  1,744,000 4,603,000 -6,013,000 -499,000                              
          proceeds from sale of bank branch, net of cash and cash equivalents
                                                                   
          proceeds from the sale of credit card portfolio
                                          25,019,000                      
          recovery for unfunded loan commitments
                                   75,000 -43,000 -71,000                              
          net cash (used) provided by financing activities
                                                                   
          deposits transferred to held for sale
                                                                   
          net (gain) loss on sale of securities
                                                                   
          net increase in other assets
                                            -2,186,000 -714,000                      
          transfers to other real estate owned and other repossessed assets
                                    242,000 2,599,000                 745,000 126,000 1,051,000 395,000          
          securities gains
                                       -3,617,000 -370,000          -40,000 -1,000  -2,000            
          net decrease (increase) in interest receivable
                                     336,000                    -864,000          
          loans transferred to portfolio from held for sale
                                                                   
          securities (gains) losses
                                                        -2,170,000          
          tax benefit from stock-based compensation
                                              -24,000                  
          gain on sale of fixed assets
                                                                   
          net decrease (increase) in other assets
                                        1,080,000 3,404,000               6,339,000 7,067,000          
          net sales (purchases) of federal home loan bank stock
                                                                   
          net cash paid in excess of cash acquired from bank merger
                                              -16,347,000                  
          proceeds from surrender of bank owned life insurance
                                                                   
          repayment of junior subordinated debt
                                              -5,000,000 -8,500,000                 
          net increase in benefit from unfunded loan commitments
                                                                   
          depreciation, amortization and accretion
                                       747,000 481,000 369,000  980,000 972,000 906,000  -394,000                    
          gain on the sale of credit card portfolio
                                           -2,066,000                      
          net proceeds from (purchases of) federal home loan bank stock
                                       -296,000 -478,000 2,078,000                          
          net increase in deposits
                                       64,723,000 -17,305,000 62,219,000  63,781,000                        
          benefit from unfunded loan commitments
                                        124,000 -458,000 -25,000 -41,000 6,000 125,000 -429,000 82,000 407,000 198,000 -393,000 -444,000 239,000 -57,000 -203,000 753,000 -145,000 1,049,000 -240,000         
          loans transferred to (from) held for sale
                                                                   
          restricted stock compensation expense
                                         1,002,000                          
          loans transferred from portfolio to held for sale
                                         250,000                          
          securities losses, (gains)
                                                                   
          net purchases of federal home loan bank stock
                                          -3,486,000    2,680,000 -3,201,000                    
          loans transferred from held for sale to portfolio
                                           3,080,000                        
          net assets acquired from bank merger, excluding cash and cash equivalents
                                               -586,000 44,019,000                  
          securities losses (gains)
                                                                  
          net (purchases of) proceeds from federal home loan bank stock
                                            -4,418,000 -305,000                      
          net gain on sale of merchant card servicing business
                                                      -3,093,000            
          proceeds from the sale of merchant card servicing business
                                                      4,750,000            
          issuance costs
                                                -9,000 -123,000                  
          net proceeds from federal home loan bank stock
                                                 4,024,000                  
          tax (benefit) expense from stock-based compensation
                                                                   
          net proceeds from the redemption of federal home loan bank stock
                                                     1,666,000 1,420,000             
          purchase of treasury shares
                                                      -2,000  -1,000 1,000          
          tax benefit (expense) from stock-based compensation
                                                                   
          tax expense from stock-based compensation
                                                       35,000            
          net decrease in other liabilities
                                                       -20,029,000            
          net (payments for) proceeds from federal home loan bank stock
                                                   -3,177,000                
          treasury shares purchased-net
                                                                   
          treasury shares (purchased) sold-net
                                                     -161,000              
          redemption of preferred stock
                                                                   
          preferred stock dividends
                                                          -1,359,000         
          net assets (liabilities) from acquisitions, excluding cash and cash equivalents
                                                                  
          proceeds from the redemption of federal home loan bank stock
                                                       2,129,000 2,143,000 1,707,000          
          net assets from acquisitions, excluding cash and cash equivalents
                                                                   
          net increase increase in other liabilities
                                                                   
          net increase in securities sold under repurchase agreements and federal funds purchased
                                                                   
          net amortization (accretion) of discounts and premiums
                                                         587,000          
          income taxes paid
                                                                   
          payment for purchase of mainline, net of acquired cash
                                                                   
          net assets acquired from mainline, excluding cash and cash equivalents
                                                                   
          tax benefits from stock-based compensation
                                                           -4,000 -228,000 -773,000 -8,000 5,000   
          cash dividends paid to preferred shareholder
                                                                   
          net amortization of investment security premiums
                                                          184,000 235,000 276,000 439,000 384,000 157,000 156,000 215,000 250,000 
          recognition of stock-based compensation expense
                                                          172,000  -348,000 167,000 615,000 161,000 372,000 221,000 132,000 
          security (gains) losses
                                                          -153,000         
          proceeds from maturities of securities available-for-sale
                                                          56,778,000         
          proceeds from issuance of preferred stock and common stock warrants
                                                                   
          sale of treasury stock
                                                          442,000     941,000 792,000   
          transfers of other real estate owned and other repossessed assets
                                                                   
          net decrease in demand deposits
                                                          -48,475,000         
          transfers (from) to other real estate owned and other repossessed assets
                                                          -1,520,000         
          security losses (gains)
                                                            1,246,000 92,000 341,000     
          gains on the sale of loans
                                                                   
          net increase in interest-earning deposits with banks
                                                                   
          proceeds from sale of premises and equipment
                                                                   
          payment for purchase of ibt, net of cash acquired
                                                             565,000 -252,000     
          net decrease in securities sold under repurchase agreements and federal funds purchased
                                                           -15,310,000 -1,496,000 -61,236,000 -22,390,000 22,317,000 -28,867,000 -30,210,000 -28,469,000 
          proceeds from junior subordinated debt securities
                                                             4,000 45,000,000 19,888,000   
          acquisition of treasury stock
                                                                   
          preferred stock dividends and amortization of discount
                                                                   
          cash dividends paid to shareholders
                                                           -9,262,000 -7,864,000 -8,555,000 -8,495,000 -7,631,000 -7,621,000 -7,482,000 -7,607,000 
          transfers to (from) other real estate owned and other repossessed assets
                                                                   
          net assets acquired in acquisition, excluding cash and cash equivalents
                                                             -565,000      
          recognition of stock-based compensation (benefit) expense
                                                                   
          security losses
                                                                   
          decrease (increase) in interest receivable
                                                                   
          increase in interest payable
                                                             234,000 -1,550,000 1,682,000 -52,000  304,000 
          decrease in other assets
                                                                   
          decrease in other liabilities
                                                                   
          net increase of interest-earning deposits with banks
                                                           -8,000 -7,000  -9,000     
          proceeds from maturities of securities available for sale
                                                           49,004,000 73,834,000 75,193,000 23,912,000 11,894,000 14,441,000 18,001,000 22,745,000 
          proceeds from sales of securities available for sale
                                                           82,000 1,993,000 321,000 4,696,000 139,983,000 1,600,000 -1,334,000 6,062,000 
          purchases of securities available for sale
                                                           -30,480,000 -29,558,000 -51,003,000 -61,269,000   -6,300,000 -1,000 
          net increase in time deposits
                                                           846,000 60,655,000 42,989,000 55,355,000 -15,392,000 11,258,000 15,582,000 796,000 
          proceeds from issuance of preferred stock and warrants
                                                           108,676,000       
          treasury stock issued for stock option exercised
                                                           28,000       
          preferred dividends paid
                                                           -1,510,000 -287,000       
          increase in cash and cash equivalents
                                                           1,572,000 -6,202,000 1,908,000 -34,129,000 19,649,000 7,473,000 9,219,000 -1,246,000 
          non cash activities
                                                                   
          transfers to other real estate owned and repossessed assets
                                                                   
          decrease in interest receivable
                                                            3,968,000    662,000  287,000 
          decrease in interest payable
                                                            -313,000       
          decrease (increase) in other assets
                                                            2,920,000       
          increase in other liabilities
                                                            -3,940,000 2,427,000 -270,000 -12,864,000 10,340,000 -4,678,000 7,892,000 
          transfers to other real estate owned
                                                            601,000  -772,000     
          increase in interest receivable
                                                             1,998,000 -3,865,000     
          net decrease (increase) in interest-earning deposits with banks
                                                                   
          transfers to (from) other real estate owned
                                                                   
          increase in other assets
                                                                -7,768,000 -716,000 -2,289,000 
          treasury stock issued for stock option exercises
                                                                   
          net cash provided (used) by financing activities
                                                                   
          tax expense (benefits) from stock-based compensation
                                                                   
          security gains
                                                                -611,000 -480,000 -1,656,000 
          net decrease of interest-earning deposits with banks
                                                                   
          excess tax benefits from stock-based compensation
                                                                 -20,000 -142,000 
          net treasury stock activity
                                                                 -14,426,000 -15,633,000 
          net decrease (increase) of interest-earning deposits with banks
                                                                  30,000 
          benefit from depreciation and amortization