7Baggers
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 2019-12-31 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 2013-06-30 2013-03-31 2012-12-31 2012-09-30 2010-12-31 2010-09-30 2009-09-30 2009-06-30 2008-12-31 2008-06-30 2007-12-31 2007-09-30 2007-06-30 2007-05-01 
      
                                                                   
      cash and due from banks
    193,453,000 239,339,000 213,574,000 203,402,000 226,568,000 195,163,000 168,427,000 209,634,000 207,171,000 229,918,000 194,629,000 198,154,000 273,052,000 294,717,000 414,780,000 358,461,000 392,035,000 329,359,000 296,184,000 311,899,000 289,144,000 291,036,000 211,013,000 234,359,000 250,671,000 187,043,000 218,458,000 231,029,000 184,417,000 195,652,000 188,418,000 199,624,000 192,278,000 196,178,000 196,277,000 177,083,000 161,710,000 158,446,000 153,706,000 117,657,000 74,695,000 85,598,000 298,515,000 126,072,000 151,725,000 146,561,000 144,775,000 137,349,000 175,965,000 121,448,000 155,714,000 181,298,000 203,756,000 361,652,000 488,123,000 331,154,000 84,258,000 102,750,000 92,383,000 98,430,000 146,561 106,803,000  
      interest-bearing deposits
    479,410,000 244,009,000 228,371,000 298,456,000 252,227,000 52,295,000  44,830,000    44,908,000                                                    
      total cash and cash equivalents
    672,863,000 483,348,000 441,945,000 501,858,000 478,795,000 247,458,000 209,276,000 254,464,000 251,706,000 281,325,000 242,992,000 243,062,000 821,921,000 1,170,847,000 1,988,388,000 2,134,300,000 2,200,582,000 1,467,931,000 1,649,927,000 1,234,183,000 705,538,000 419,974,000 295,001,000 307,735,000 324,456,000 246,796,000 261,538,000 272,196,000 248,661,000 249,425,000 242,048,000 261,200,000 241,766,000 273,548,000 300,708,000 247,719,000 245,917,000 234,656,000 260,570,000 261,917,000 135,239,000 183,974,000                      
      securities—available-for-sale, amortized cost 2,292,835 and 2,460,262, respectively
    2,018,525,000                                                               
      securities—held-to-maturity, net of allowance for credit losses of 298 and 297, respectively
    971,603,000                                                               
      total securities
    2,990,128,000 3,045,893,000 3,100,741,000 3,106,075,000 3,251,842,000 3,220,721,000 3,283,251,000 3,432,838,000 3,395,417,000 3,590,189,000 3,792,046,000 3,935,313,000 4,157,408,000 4,274,073,000 4,190,423,000 4,186,896,000 3,921,158,000 3,756,332,000 3,456,656,000 2,769,286,000 2,210,693,000 2,171,095,000 2,067,110,000  1,795,636,000 1,789,972,000 1,848,635,000  1,696,736,000                                   
      federal home loan bank (fhlb) stock
    14,226,000 35,151,000 17,286,000 22,451,000 19,751,000 27,311,000 11,741,000 24,028,000 15,600,000 20,800,000 16,800,000 12,000,000 10,000,000 10,000,000 10,000,000 12,000,000 12,000,000 14,001,000 14,001,000 16,358,000 16,363,000 16,363,000 20,247,000 28,342,000 25,623,000 34,583,000 27,063,000 31,955,000 19,196,000 19,916,000 18,036,000 10,334,000 20,854,000 12,334,000 10,334,000 12,506,000 12,826,000 23,347,000 13,347,000 16,057,000 6,767,000 6,120,000 25,544,000  29,106,000 31,191,000 33,288,000  35,708,000 36,040,000 36,373,000    37,371,000 37,371,000 37,371,000  37,371,000     
      loans held for sale
    20,334,000 37,651,000 24,536,000 32,021,000 78,841,000 13,421,000 9,357,000 11,170,000 54,158,000 60,612,000 49,016,000 56,857,000 84,358,000 69,161,000 64,218,000 96,487,000 63,678,000 71,741,000 135,263,000 243,795,000 185,938,000 258,700,000 182,428,000 210,447,000 244,889,000 170,744,000 45,865,000 171,031,000 72,850,000 78,833,000 141,808,000 40,725,000 71,905,000 66,164,000 86,707,000 246,353,000 123,144,000 113,230,000 47,523,000 44,712,000                        
      loans receivable
    11,702,538,000 11,690,373,000 11,438,796,000 11,354,656,000 11,224,606,000 11,143,848,000 10,869,096,000 10,810,455,000 10,611,417,000 10,472,407,000 10,160,684,000 10,146,724,000 9,827,096,000 9,456,829,000 9,146,629,000 9,084,763,000 9,218,384,000 9,654,181,000 9,947,697,000 9,870,982,000 10,163,917,000 10,283,999,000 9,285,744,000 9,305,357,000 8,835,368,000 8,746,550,000 8,692,657,000 8,684,595,000 7,822,519,000 7,684,732,000 7,556,046,000 7,598,884,000 7,774,449,000 7,551,563,000 7,421,255,000 7,451,148,000 7,398,637,000 7,325,925,000 7,185,999,000 7,314,504,000 51,749,000 51,078,000 46,365,000 177,541,000 46,496,000 43,199,000 41,743,000 167,204,000 41,953,000 42,292,000 41,489,000 174,322,000 43,953,000 205,784,000 51,162,000 56,175,000 55,500,000 256,951,000    71,047,000  
      allowance for credit losses – loans
    -159,707,000 -160,501,000 -157,323,000 -155,521,000 -154,585,000 -152,848,000 -151,140,000 -149,643,000 -146,960,000 -144,680,000 -141,457,000 -141,465,000 -135,918,000 -128,702,000 -125,471,000  -139,915,000 -148,009,000                                              
      net loans receivable
    11,542,831,000 11,529,872,000 11,281,473,000 11,199,135,000 11,070,021,000 10,991,000,000 10,717,956,000 10,660,812,000 10,464,457,000 10,327,727,000 10,019,227,000 10,005,259,000 9,691,178,000 9,328,127,000 9,021,158,000 8,952,664,000 9,078,469,000 9,506,172,000 9,791,643,000 9,703,703,000 9,995,952,000 10,127,647,000 9,155,256,000  8,737,567,000 8,648,296,000 8,595,349,000  7,727,256,000 7,590,857,000                                  
      accrued interest receivable
    64,914,000 64,729,000 63,987,000 60,885,000 66,981,000 67,520,000 66,124,000 63,100,000 61,040,000 57,007,000 52,094,000 57,284,000 50,689,000 45,408,000 41,827,000 42,916,000 43,644,000 46,979,000 49,214,000 46,617,000 48,321,000 48,806,000 40,732,000 37,962,000 40,033,000 40,238,000 41,220,000 38,593,000 37,676,000 34,004,000 32,824,000 31,259,000 33,837,000 30,722,000 30,312,000 30,178,000 30,345,000 30,052,000 30,674,000 29,627,000 17,966,000 16,792,000 16,873,000 15,279,000 17,062,000 15,579,000 15,202,000 13,996,000 15,164,000 14,648,000 15,235,000 13,930,000 16,118,000 15,927,000 17,866,000 20,912,000 18,892,000 21,219,000 22,890,000 24,980,000 26,376 24,885,000  
      property and equipment
    113,848,000 117,175,000 119,649,000 124,589,000 125,256,000 126,465,000 129,889,000 132,231,000 136,504,000 135,414,000 136,362,000 138,754,000 141,280,000 141,114,000 142,594,000 148,759,000 151,503,000 156,063,000 161,268,000 164,556,000 171,576,000 173,360,000 175,235,000 178,008,000 171,279,000 171,233,000 171,057,000 171,809,000 151,212,000 153,224,000 156,005,000 154,815,000 159,893,000 161,095,000 162,467,000 166,481,000 167,621,000 167,597,000 168,807,000 167,604,000 102,881,000 101,141,000 98,728,000 91,185,000 91,291,000 91,912,000 89,440,000 90,267,000 89,092,000 87,896,000 88,414,000 89,117,000 89,202,000 96,502,000 98,300,000 104,469,000 103,709,000 97,647,000 97,928,000 98,098,000 95,816 87,327,000  
      goodwill
    373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 373,121,000 339,154,000 339,154,000 339,154,000 339,154,000 242,659,000 242,659,000 242,659,000 242,659,000 244,583,000 244,583,000 244,583,000 244,583,000 244,583,000 244,583,000 244,811,000 247,738,000                       56,468,000 
      other intangibles
    1,806,000 2,147,000 2,602,000 3,058,000 3,647,000 4,237,000 4,961,000 5,684,000 6,542,000 7,399,000 8,390,000 9,440,000 10,655,000 11,870,000 13,431,000 14,855,000 16,429,000 18,004,000 19,715,000 21,426,000 23,291,000 25,155,000 27,157,000  26,610,000 28,595,000 30,647,000  18,499,000 19,858,000 21,251,000  25,219,000 26,813,000 28,488,000  31,934,000 33,724,000 35,598,000                9,210,000         
      bank-owned life insurance
    317,469,000 316,365,000 313,942,000 312,549,000 310,400,000 307,948,000 306,600,000 304,366,000 303,347,000 301,260,000 299,754,000 297,565,000 295,443,000 293,631,000 294,556,000 244,156,000 192,950,000 192,677,000 191,388,000 191,830,000 191,755,000 190,468,000 193,140,000 192,088,000 179,076,000 178,922,000 178,202,000 177,467,000 163,265,000 164,225,000 163,519,000 162,668,000 161,648,000 160,609,000 159,948,000 158,936,000 158,831,000 158,001,000 156,928,000 156,865,000 71,842,000 71,744,000 71,290,000 63,759,000 63,293,000 62,815,000 62,377,000 61,945,000 61,442,000 60,894,000 60,425,000 59,891,000 60,395,000 56,653,000 56,141,000 54,037,000 53,341,000 52,680,000 52,213,000 51,483,000 51,024 50,441,000  
      deferred tax assets
    130,438,000 136,542,000 139,361,000 148,858,000 130,310,000 153,541,000 156,571,000 153,365,000 186,775,000 167,993,000 165,247,000 178,131,000 178,550,000 146,543,000 118,997,000 71,138,000 70,130,000 69,702,000 83,178,000 65,742,000 64,367,000 50,610,000 46,582,000 59,639,000 58,884,000 61,327,000 69,642,000 75,020,000 78,471,000 77,937,000 76,843,000 71,427,000 119,333,000 121,131,000 124,069,000 127,694,000 124,830,000 123,818,000 126,832,000 134,970,000 23,536,000 23,680,000 22,289,000 24,607,000 21,830,000 22,065,000 26,341,000 27,479,000 26,070,000   35,007,000 41,474,000           
      operating lease right-of-use assets
    35,494,000 38,754,000 37,134,000 39,998,000 38,192,000 39,628,000 40,834,000 43,731,000 43,447,000 45,812,000 47,106,000 49,283,000 51,908,000 49,792,000 52,792,000 55,257,000 58,523,000 55,287,000 56,217,000                                             
      other assets
    285,609,000 256,421,000 255,035,000 275,439,000 241,519,000 243,823,000 208,598,000 211,481,000 215,766,000 216,077,000 181,448,000 177,022,000 193,958,000 171,170,000 164,237,000 171,471,000 154,840,000 153,084,000 137,861,000 200,190,000 203,110,000 207,856,000 202,539,000 168,632,000 154,407,000 135,001,000 129,302,000 74,108,000 57,458,000 58,655,000 63,380,000 53,177,000 49,928,000 54,258,000 68,086,000 59,466,000 72,585,000 70,267,000 65,902,000 56,943,000 37,918,000 36,187,000 36,708,000 29,328,000 27,538,000 28,509,000 29,352,000 26,799,000 23,775,000 25,466,000 36,294,000 40,781,000 39,668,000 42,106,000 45,777,000 25,230,000 23,321,000 18,821,000 21,303,000 20,996,000 18,463 20,443,000 7,528,000 
      total assets
    16,563,081,000 16,437,169,000 16,170,812,000 16,200,037,000 16,188,676,000 15,816,194,000 15,518,279,000 15,670,391,000 15,507,880,000 15,584,736,000 15,533,603,000 15,833,431,000 16,360,809,000 16,385,197,000 16,776,171,000 16,804,872,000 16,637,879,000 16,181,857,000 16,119,792,000 15,031,623,000 14,642,075,000 14,405,607,000 12,780,950,000 12,604,031,000 12,097,842,000 11,847,374,000 11,740,285,000 11,871,317,000 10,514,303,000 10,379,194,000 10,317,264,000 9,763,209,000 10,443,086,000 10,199,820,000 10,068,378,000 9,793,668,000 9,841,028,000 9,916,205,000 9,745,594,000 9,796,298,000                       503,648,000 
      liabilities
                                                                   
      deposits:
                                                                   
      non-interest-bearing
    4,572,338,000 4,504,491,000 4,571,598,000 4,591,543,000 4,688,244,000 4,537,803,000 4,699,553,000 4,792,369,000 5,197,854,000 5,369,187,000 5,764,009,000 6,176,998,000 6,507,523,000 6,388,815,000 6,494,852,000 6,385,177,000 6,400,864,000 6,090,063,000 5,994,693,000 5,492,924,000 5,412,570,000 5,281,559,000 4,107,262,000 3,945,000,000 3,885,210,000 3,671,995,000 3,676,984,000 3,657,817,000 3,469,294,000 3,346,777,000 3,383,439,000 3,265,544,000 3,379,841,000 3,254,581,000 3,213,044,000 3,140,451,000 3,190,293,000 3,023,986,000 3,036,330,000 2,619,618,000 1,561,516,000 1,484,315,000 1,504,768,000 1,298,866,000 1,304,720,000 1,210,068,000 1,095,665,000 1,115,346,000 1,051,831,000 958,674,000 962,156,000 981,240,000 918,962,000 600,457,000 613,313,000 546,956,000 508,284,000 509,105,000 477,144,000 484,251,000 473,571 455,628,000  
      interest-bearing transaction and savings accounts
    7,903,215,000 7,545,028,000 7,517,617,000 7,423,183,000 7,328,051,000 7,016,327,000 6,973,338,000 6,759,661,000 6,518,385,000 6,373,269,000 6,440,261,000 6,719,531,000 7,004,799,000 7,067,437,000 7,228,558,000 7,103,125,000 6,912,759,000 6,673,598,000 6,647,196,000 6,159,052,000 5,887,419,000 5,692,715,000 5,175,969,000 4,983,238,000 4,624,970,000 4,546,202,000 4,535,969,000 4,498,966,000 4,035,856,000 4,032,283,000 4,141,268,000 3,950,950,000 4,058,435,000 4,022,909,000 4,064,198,000 3,935,630,000 3,798,668,000 3,687,118,000 3,705,658,000 4,081,580,000 2,095,476,000 2,047,050,000 2,036,600,000 1,829,568,000 1,833,404,000 1,771,865,000 1,681,854,000  1,583,430,000 1,557,513,000 1,575,525,000  1,480,234,000  1,459,756,000 1,305,546,000 1,131,093,000       
      interest-bearing certificates
    1,540,382,000 1,477,772,000 1,504,050,000 1,499,672,000 1,521,853,000 1,525,133,000 1,485,880,000 1,477,467,000 1,458,313,000 1,356,600,000 949,932,000 723,530,000 721,944,000 756,312,000 800,364,000 838,631,000 851,054,000 873,047,000 906,978,000 915,320,000 915,352,000 1,042,006,000 1,166,306,000 1,120,403,000 1,218,591,000 1,070,770,000 1,163,276,000 1,320,265,000 1,180,674,000 1,148,607,000 1,018,355,000 966,937,000 1,100,574,000 1,206,241,000 1,144,718,000 1,045,333,000 1,123,011,000 1,208,671,000 1,287,873,000 1,353,870,000 730,661,000 765,780,000 778,049,000 770,516,000 852,994,000 936,986,000 905,016,000 872,695,000 900,024,000 944,137,000 982,903,000 1,029,293,000 1,087,176,000 1,557,493,000 1,687,417,000 2,008,673,000 2,110,466,000 2,131,867,000 2,063,392,000 1,848,230,000 1,825,096 1,829,473,000  
      total deposits
    14,015,935,000 13,527,291,000 13,593,265,000 13,514,398,000 13,538,148,000 13,079,263,000 13,158,771,000 13,029,497,000 13,174,552,000 13,099,056,000 13,154,202,000 13,620,059,000 14,234,266,000 14,212,564,000 14,523,774,000 14,326,933,000 14,164,677,000 13,636,708,000 13,548,867,000 12,567,296,000 12,215,341,000 12,016,280,000 10,449,537,000 10,048,641,000 9,728,771,000 9,288,967,000 9,376,229,000 9,477,048,000 8,685,824,000 8,527,667,000 8,543,062,000 8,183,431,000 8,538,850,000 8,483,731,000 8,421,960,000 8,121,414,000 8,111,972,000 7,919,775,000 8,029,861,000 8,055,068,000                        
      advances from fhlb
    100,000,000 565,000,000 168,000,000 290,000,000 230,000,000 398,000,000 52,000,000 323,000,000 140,000,000 270,000,000 170,000,000 50,000,000    50,000,000 50,000,000 100,000,000 100,000,000 150,000,000 150,000,000 150,000,000 247,000,000 450,000,000 382,000,000 606,000,000 418,000,000 540,189,000 221,184,000 239,190,000 192,195,000                                 
      other borrowings
    120,536,000 117,112,000 130,588,000 125,257,000 154,533,000 165,956,000 183,341,000 182,877,000 188,440,000 193,019,000 214,564,000 232,799,000 234,006,000 234,737,000 266,778,000 264,490,000 247,358,000 237,736,000 216,260,000 184,785,000 176,983,000 166,084,000 128,764,000 118,474,000 120,014,000 118,370,000 121,719,000 118,995,000 98,979,000 112,458,000 101,844,000 95,860,000 103,713,000 116,455,000 120,245,000 105,685,000 108,911,000 112,308,000 106,132,000 98,325,000 88,083,000 94,523,000 97,020,000 77,185,000 67,605,000 88,946,000 89,921,000 83,056,000 82,909,000 90,779,000 88,446,000 76,633,000 82,275,000 175,813,000 178,134,000 174,770,000 158,249,000 145,230,000 164,192,000 91,724,000 78,511 71,926,000  
      subordinated notes
      80,389,000 80,278,000 80,170,000 89,561,000 89,456,000 92,851,000 92,748,000 92,646,000 99,046,000 98,947,000 98,849,000 98,752,000 98,658,000 98,564,000 98,472,000 98,380,000 98,290,000 98,201,000 98,114,000 98,140,000                                          
      junior subordinated debentures at fair value
    76,251,000 73,366,000 67,711,000 67,477,000 66,257,000 66,831,000 66,586,000 66,413,000 66,284,000 67,237,000 74,703,000 74,857,000 73,841,000 72,229,000 70,510,000 119,815,000 124,853,000 117,520,000 117,248,000 116,974,000 109,821,000 109,613,000 99,795,000 119,304,000 113,417,000 113,621,000 113,917,000 114,091,000 113,110,000 112,774,000 112,516,000 98,707,000 97,280,000 96,852,000 96,040,000 95,200,000 94,364,000 93,298,000 92,879,000 92,480,000 85,183,000 84,694,000 84,326,000 78,001,000 77,624,000 77,313,000 74,135,000 73,928,000 73,637,000 73,471,000 73,220,000 73,063,000 73,071,000 48,425,000 48,394,000 47,859,000 49,563,000 61,776,000 101,358,000 113,270,000 122,220 98,419,000  
      operating lease liabilities
    38,826,000 41,696,000 40,466,000 43,472,000 42,318,000 44,056,000 45,524,000 48,659,000 48,642,000 51,234,000 52,772,000 55,205,000 58,031,000 55,746,000 57,343,000 59,756,000 62,946,000 59,117,000 59,884,000                                             
      accrued expenses and other liabilities
    251,464,000 200,194,000 210,771,000 258,070,000 237,128,000 235,515,000 211,578,000 228,428,000 231,478,000 223,565,000 191,326,000 200,839,000 209,226,000 180,999,000 148,689,000 148,303,000 175,960,000 216,399,000 313,801,000 202,643,000 200,038,000 194,964,000 208,753,000 227,889,000 181,351,000 159,131,000 158,669,000 102,061,000 82,530,000 93,281,000 72,497,000 71,344,000 72,604,000 102,511,000 66,201,000 71,369,000 92,783,000 87,441,000 81,485,000 76,511,000 42,844,000 36,131,000 38,164,000 37,082,000 32,375,000 35,619,000 29,189,000 30,592,000 24,830,000 22,010,000 24,157,000 26,389,000 36,109,000 21,048,000 24,624,000 28,715,000 36,652,000 40,600,000 37,438,000 48,189,000 47,577 51,792,000  
      deferred compensation
    47,177,000 46,846,000 46,169,000 46,759,000 46,401,000 46,246,000 46,515,000 45,975,000 45,129,000 45,466,000 45,295,000 44,293,000 43,931,000 44,340,000 46,639,000 46,684,000 46,494,000 46,786,000 46,625,000 45,460,000 45,249,000 45,423,000 45,401,000 45,689,000 41,354,000 40,230,000 40,560,000 40,338,000 40,478,000 40,814,000 41,027,000 41,039,000 40,279,000 40,208,000 40,315,000 40,074,000 39,385,000 39,483,000 39,682,000 40,474,000 20,910,000 20,879,000 20,882,000 16,807,000 16,359,000 16,238,000 16,641,000 16,442,000 15,642,000 15,111,000 14,879,000 14,452,000 14,375,000 14,603,000 13,877,000 12,960,000 12,815,000 13,149,000 12,694,000 11,396,000 10,830 10,497,000  
      total liabilities
    14,650,189,000 14,571,505,000 14,337,359,000 14,425,711,000 14,394,955,000 14,125,428,000 13,853,771,000 14,017,700,000 13,987,273,000 14,042,223,000 14,001,908,000 14,376,999,000 14,952,150,000 14,899,367,000 15,212,391,000 15,114,545,000 14,970,760,000 14,512,646,000 14,500,975,000 13,365,359,000 12,995,546,000 12,780,504,000 11,179,250,000 11,009,997,000 10,566,907,000 10,326,319,000 10,229,094,000 10,392,722,000 9,242,105,000 9,126,184,000 9,063,141,000 8,490,583,000 9,116,075,000 8,889,969,000 8,744,974,000 8,487,958,000 8,509,757,000 8,577,688,000 8,425,439,000 8,496,239,000                       -405,458,000 
      commitments and contingencies
                                                                   
      shareholders’ equity
                                                                   
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2025 and december 31, 2024
                                                                   
      common shares, ...
    1,295,821,000 1,309,004,000 1,308,967,000 1,307,509,000 1,304,792,000 1,302,236,000 1,300,969,000 1,299,651,000 1,297,307,000 1,294,934,000 1,293,225,000 1,293,959,000 1,291,741,000 1,289,499,000 1,298,212,000 1,299,381,000 1,297,145,000 1,311,455,000 1,326,269,000 1,349,879,000 1,347,612,000 1,345,096,000 1,343,699,000 1,373,198,000 1,286,022,000 1,306,000,000 1,337,592,000 1,336,030,000 1,174,004,000 1,172,402,000 1,171,914,000 1,185,919,000 1,214,547,000 1,214,578,000 1,214,045,000 1,213,225,000 1,241,816,000 1,223,470,000 1,197,306,000 1,193,270,000 628,958,000 628,327,000 627,553,000 568,882,000 568,255,000 567,483,000 566,964,000 569,028,000 568,535,000 568,408,000 568,116,000 567,907,000 567,659,000 509,457,000 506,418,000         
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at september 30, 2025; no shares issued and outstanding at december 31, 2024
                                                                   
      retained earnings
    837,826,000 801,082,000 772,412,000 744,091,000 714,472,000 686,079,000 663,021,000 642,175,000 616,215,000 587,027,000 564,106,000 525,242,000 486,108,000 452,246,000 419,659,000 390,762,000 355,035,000 319,505,000 279,582,000 247,316,000 222,959,000 201,448,000 177,922,000 186,838,000 203,704,000 178,257,000 152,911,000 134,055,000 109,942,000 84,485,000 79,773,000 90,535,000 111,405,000 94,541,000 110,783,000 95,328,000 80,053,000 63,967,000 50,230,000 39,615,000 41,269,000 32,096,000 22,623,000 15,000,000 6,780,000             2,150,000 84,204,000 139,636,000 133,278 126,249,000  
      carrying value of shares held in trust for stock-based compensation plans
    -5,801,000 -5,975,000 -6,216,000 -6,194,000 -6,195,000 -6,364,000 -6,607,000 -6,563,000 -6,546,000 -6,702,000 -6,919,000 -6,905,000 -6,973,000 -7,136,000 -7,338,000 -7,435,000 -7,421,000 -7,374,000 -7,614,000 -7,636,000 -7,588,000                                           
      liability for common stock issued to stock related compensation plans
    5,801,000 5,975,000 6,216,000 6,194,000 6,195,000 6,364,000 6,607,000 6,563,000 6,546,000 6,702,000 6,919,000 6,905,000 6,973,000 7,136,000 7,338,000 7,435,000 7,421,000 7,374,000 7,614,000 7,636,000 7,588,000 7,549,000 7,650,000  7,387,000 7,324,000 7,294,000  7,182,000 7,083,000 7,371,000                                 
      accumulated other comprehensive loss
    -220,755,000 -244,422,000 -247,926,000 -277,274,000 -225,543,000 -297,549,000 -299,482,000 -289,135,000 -392,915,000 -339,448,000 -325,636,000                19,894,000     -5,036,000    -3,455,000    -730,000                        
      total shareholders’ equity
    1,912,892,000 1,865,664,000 1,833,453,000 1,774,326,000 1,793,721,000 1,690,766,000 1,664,508,000 1,652,691,000 1,520,607,000 1,542,513,000 1,531,695,000 1,456,432,000 1,408,659,000 1,485,830,000 1,563,780,000 1,690,327,000 1,667,119,000 1,669,211,000 1,618,817,000 1,666,264,000 1,646,529,000                                           
      total liabilities and shareholders’ equity
    16,563,081,000 16,437,169,000 16,170,812,000 16,200,037,000 16,188,676,000 15,816,194,000 15,518,279,000 15,670,391,000 15,507,880,000 15,584,736,000 15,533,603,000 15,833,431,000 16,360,809,000 16,385,197,000 16,776,171,000 16,804,872,000 16,637,879,000 16,181,857,000 16,119,792,000 15,031,623,000 14,642,075,000                                           
      securities—available-for-sale, amortized cost 2,372,331 and 2,460,262, respectively
     2,064,581,000                                                              
      securities—held-to-maturity, net of allowance for credit losses of 302 and 297, respectively
     981,312,000                                                              
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2025 and december 31, 2024
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at june 30, 2025; no shares issued and outstanding at december 31, 2024
                                                                   
      securities—available-for-sale, amortized cost 2,426,395 and 2,460,262, respectively
      2,108,945,000                                                             
      securities—held-to-maturity, net of allowance for credit losses of 292 and 297, respectively
      991,796,000                                                             
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2025 and december 31, 2024
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at march 31, 2025; no shares issued and outstanding at december 31, 2024
                                                                   
      securities—available-for-sale; amortized cost 2,460,262 and 2,729,980, respectively
       2,104,511,000                                                            
      securities—held-to-maturity, net of allowance for credit losses of 297 and 332, respectively
       1,001,564,000                                                            
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at december 31, 2024 and december 31, 2023
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at december 31, 2024 and december 31, 2023
                                                                   
      securities—available-for-sale, amortized cost 2,523,968 and 2,729,980, respectively
        2,237,939,000                                                           
      securities—held-to-maturity, net of allowance for credit losses of 307 and 332, respectively
        1,013,903,000                                                           
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2024 and december 31, 2023
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at september 30, 2024; no shares issued and outstanding at december 31, 2023
                                                                   
      securities—available-for-sale, amortized cost 2,572,544 and 2,729,980, respectively
         2,197,693,000                                                          
      securities—held-to-maturity, net of allowance for credit losses of 314 and 332, respectively
         1,023,028,000                                                          
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2024 and december 31, 2023
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at june 30, 2024; no shares issued and outstanding at december 31, 2023
                                                                   
      interest bearing deposits
          40,849,000  44,535,000 51,407,000 48,363,000  548,869,000 876,130,000 1,573,608,000 1,775,839,000 1,808,547,000 1,138,572,000 1,353,743,000 922,284,000 416,394,000 128,938,000 83,988,000 73,376,000 73,785,000 59,753,000 43,080,000 41,167,000 64,244,000 53,773,000 53,630,000 61,576,000 49,488,000 77,370,000 104,431,000 70,636,000 84,207,000 76,210,000 106,864,000 144,260,000 60,544,000 98,376,000                      
      securities—available-for-sale, amortized cost 2,617,986 and 2,729,980, respectively
          2,244,939,000                                                         
      securities—held-to-maturity, net of allowance for credit losses of 322 and 332, respectively
          1,038,312,000                                                         
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2024 and december 31, 2023
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at march 31, 2024; no shares issued and outstanding at december 31, 2023
                                                                   
      securities—trading
            25,268,000 25,659,000 28,591,000 28,694,000 28,383,000 27,886,000 27,354,000 26,981,000 26,875,000 25,097,000 25,039,000 24,980,000 23,276,000 23,239,000 21,040,000 25,636,000 25,672,000 25,741,000                                      
      securities—available-for-sale; amortized cost 2,729,980 and 3,218,777, respectively
           2,373,783,000                                                        
      securities—held-to-maturity, net of allowance for credit losses of 332 and 379, respectively
           1,059,055,000                                                        
      securities purchased under agreements to resell
              150,000,000 300,000,000 300,000,000 300,000,000 300,000,000 300,000,000 300,000,000 300,000,000                                              
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at december 31, 2023 and december 31, 2022
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at december 31, 2023 and december 31, 2022
                                                                   
      securities—available-for-sale, net of allowance for credit losses of 750 and none, respectively; amortized cost 2,774,972 and 3,218,777, respectively
            2,287,993,000                                                       
      securities—held-to-maturity, net of allowance for credit losses of 349 and 379, respectively
            1,082,156,000                                                       
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2023 and december 31, 2022
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at september 30, 2023; no shares issued and outstanding at december 31, 2022
                                                                   
      securities—available-for-sale, net of allowance for credit losses of 2,000 and none, respectively; amortized cost 2,879,179 and 3,218,777, respectively
             2,465,960,000                                                      
      securities—held-to-maturity, net of allowance for credit losses of 355 and 379, respectively
             1,098,570,000                                                      
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2023 and december 31, 2022
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at june 30, 2023; no shares issued and outstanding at december 31, 2022
                                                                   
      securities—available-for-sale, amortized cost 3,040,211 and 3,218,777, respectively
              2,653,860,000                                                     
      securities—held-to-maturity, net of allowance for credit losses of 364 and 379, respectively
              1,109,595,000                                                     
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2023 and december 31, 2022
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at march 31, 2023; no shares issued and outstanding at december 31, 2022
                                                                   
      securities—available-for-sale, amortized cost 3,218,777 and 3,653,160, respectively
               2,789,031,000                                                    
      securities—held-to-maturity, net of allowance for credit losses of 379 and 433, respectively
               1,117,588,000                                                    
      real estate owned (reo), held for sale
               340,000 340,000 340,000 429,000 852,000 852,000 763,000 340,000 816,000 1,795,000 2,400,000 2,402,000 814,000 228,000 2,513,000 2,611,000 2,611,000 364,000 473,000 328,000 360,000 1,496,000 2,427,000 3,040,000 11,081,000 4,717,000 6,147,000 7,207,000 11,627,000 6,363,000 6,105,000 4,922,000 3,352,000 3,928,000 4,388,000 3,236,000  4,818,000 6,714,000 11,160,000    107,159,000         
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at december 31, 2022 and december 31, 2021
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at december 31, 2022; no shares issued and outstanding at december 31, 2021
                                                                   
      accumulated other comprehensive income
               -362,769,000 -369,190,000 -255,915,000 -154,091,000 184,000 14,939,000 38,251,000 12,966,000 69,069,000 75,958,000 78,559,000 80,079,000 33,256,000 40,520,000 35,910,000  7,104,000   1,390,000  124,000    8,013,000 11,465,000 7,875,000  975,000 227,000 1,137,000   71,000     1,784,000 2,101,000 2,393,000 350,000          
      securities—available-for-sale, amortized cost 3,433,541 and 3,653,160, respectively
                2,996,173,000                                                   
      securities—held-to-maturity, net of allowance for credit losses of 394 and 433, respectively, fair value 947,416 and 541,853, respectively
                1,132,852,000                                                   
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2022 and december 31, 2021
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at september 30, 2022; no shares issued and outstanding at december 31, 2021
                                                                   
      securities—available-for-sale, amortized cost 3,391,472 and 3,653,160, respectively
                 3,094,422,000                                                  
      securities—held-to-maturity, net of allowance for credit losses of 424 and 433, respectively, fair value 1,036,301 and 541,853, respectively
                 1,151,765,000                                                  
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2022 and december 31, 2021
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at june 30, 2022; no shares issued and outstanding at december 31, 2021
                                                                   
      securities—available-for-sale, amortized cost 3,315,213 and 3,653,160, respectively
                  3,147,547,000                                                 
      securities—held-to-maturity, net of allowance for credit losses of 420 and 433, respectively, fair value 968,540 and 541,853, respectively
                  1,015,522,000                                                 
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2022 and december 31, 2021
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at march 31, 2022; no shares issued and outstanding at december 31, 2021
                                                                   
      securities—available-for-sale, amortized cost 3,653,160 and 2,256,189, respectively
                   3,638,993,000                                                
      securities—held-to-maturity, net of allowance for credit losses of 433 and 94, respectively, fair value 541,853 and 448,681, respectively
                   520,922,000                                                
      allowance for credit losses - loans
                   -132,099,000   -156,054,000 -167,279,000 -167,965,000                                           
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at december 31, 2021 and december 31, 2020
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at december 31, 2021; no shares issued and outstanding at december 31, 2020
                                                                   
      securities—available-for-sale, amortized cost 3,443,516 and 2,256,189, respectively
                    3,446,575,000                                               
      securities—held-to-maturity, net of allowance for credit losses of 104 and 94, respectively, fair value 466,002 and 448,681, respectively
                    447,708,000                                               
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2021 and december 31, 2020
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at september 30, 2021; no shares issued and outstanding at december 31, 2020
                                                                   
      securities—available-for-sale, amortized cost 3,249,579 and 2,256,189, respectively
                     3,275,979,000                                              
      securities—held-to-maturity, net of allowance for credit losses of 110 and 94, respectively, fair value 479,977 and 448,681, respectively
                     455,256,000                                              
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2021 and december 31, 2020
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at june 30, 2021; no shares issued and outstanding at december 31, 2020
                                                                   
      securities—available-for-sale, amortized cost 2,996,902 and 2,256,189, respectively
                      2,989,760,000                                             
      securities—held-to-maturity, net of allowance for credit losses of 98 and 94, respectively, fair value 459,595 and 448,681, respectively
                      441,857,000                                             
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2021 and december 31, 2020
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at march 31, 2021; no shares issued and outstanding at december 31, 2020
                                                                   
      securities—available-for-sale, amortized cost 2,256,189 and 1,529,946, respectively
                       2,322,593,000                                            
      securities—held-to-maturity, net of allowance for credit losses of 94 and none, respectively, fair value 448,681 and 237,805, respectively
                       421,713,000                                            
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at december 31, 2020 and december 31, 2019
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at december 31, 2020; 39,192 shares issued and outstanding at december 31, 2019
                                                                   
      securities—available-for-sale, amortized cost 1,690,069 and 1,529,946, respectively
                        1,758,384,000                                           
      securities—held-to-maturity, net of allowance for credit losses of 102 and none, respectively, fair value 450,806 and 237,805, respectively
                        429,033,000                                           
      equity securities
                        450,255,000 340,052,000                                          
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2020 and december 31, 2019
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at september 30, 2020; 39,192 shares issued and outstanding at december 31, 2019
                                                                   
      securities—available-for-sale, amortized cost 1,635,251 and 1,529,946, respectively
                         1,706,781,000                                          
      securities—held-to-maturity, net of allowance for credit losses of 102 and none, respectively, fair value 461,186 and 237,805, respectively
                         441,075,000                                          
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2020 and december 31, 2019
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at june 30, 2020; 39,192 shares issued and outstanding at december 31, 2019
                                                                   
      total shareholders' equity
                         1,625,103,000 1,601,700,000 1,594,034,000 1,530,935,000 1,521,055,000 1,511,191,000 1,478,595,000 1,272,198,000 1,253,010,000 1,254,123,000 1,272,626,000 1,327,011,000 1,309,851,000 1,323,404,000 1,305,710,000 1,331,271,000 1,338,517,000 1,320,155,000 1,300,059,000                        
      total liabilities and shareholders' equity
                         14,405,607,000 12,780,950,000 12,604,031,000 12,097,842,000 11,847,374,000 11,740,285,000 11,871,317,000    9,763,209,000    9,793,668,000    9,796,298,000                        
      securities—available-for-sale, amortized cost 1,544,513 and 1,529,946, respectively
                          1,608,224,000                                         
      securities—held-to-maturity, net of allowance for credit losses of 98 and none, respectively, fair value 449,237 and 237,805, respectively
                          437,846,000                                         
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2020 and december 31, 2019
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at march 31, 2020; 39,192 shares issued and outstanding at december 31, 2019
                                                                   
      securities—available-for-sale, amortized cost 1,529,946 and 1,648,421, respectively
                           1,551,557,000                                        
      securities—held-to-maturity, fair value 237,805 and 232,537, respectively
                           236,094,000                                        
      allowance for loan losses
                           -100,559,000    -96,485,000    -89,028,000    -85,997,000    -78,008,000                  -75,197,000   -44,212 -43,248,000  
      net loans
                           9,204,798,000    8,588,110,000   7,463,839,000 7,509,856,000 7,685,349,000 7,462,977,000 7,334,728,000 7,365,151,000 7,314,417,000 7,244,607,000 7,107,802,000 7,236,496,000                        
      other intangible assets
                           29,158,000    32,924,000    22,655,000    30,162,000    36,762,000                        
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares issued and outstanding at december 31, 2019 and december 31, 2018
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 39,192 shares issued and outstanding at december 31, 2019; 74,933 shares issued and outstanding at december 31, 2018
                           742,000                                        
      carrying value of shares held in trust for stock related compensation plans
                           -7,507,000    -7,289,000    -7,351,000    -7,283,000    -6,928,000                  -8,850,000   -8,010 -7,699,000  
      liability for common stock issued for stock related compensation plans
                           7,507,000    7,289,000    7,351,000                                
      securities—available-for-sale, amortized cost 1,508,810 and 1,648,421, respectively
                            1,539,908,000                                       
      securities—held-to-maturity, fair value 233,721 and 232,537, respectively
                            230,056,000                                       
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2019 and december 31, 2018
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 39,192 shares issued and outstanding at september 30, 2019; 74,933 shares issued and outstanding at december 31, 2018
                            689,000                                       
      securities—available-for-sale, amortized cost 1,535,775 and 1,648,421, respectively
                             1,561,009,000                                      
      securities—held-to-maturity, fair value 206,917 and 232,537, respectively
                             203,222,000                                      
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2019 and december 31, 2018
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 39,192 shares issued and outstanding at june 30, 2019; 74,933 shares issued and outstanding at december 31, 2018
                             888,000                                      
      securities—trading, amortized cost 27,203 and 27,203, respectively
                              25,838,000                                     
      securities—available-for-sale, amortized cost 1,599,347 and 1,648,421, respectively
                              1,603,804,000                                     
      securities—held-to-maturity, fair value 220,112 and 232,537, respectively
                              218,993,000                                     
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2019 and december 31, 2018
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 39,192 shares issued and outstanding at march 31, 2019; 74,933 shares issued and outstanding at december 31, 2018
                              794,000                                     
      securities—trading, amortized cost 27,203 and 27,246, respectively
                               25,896,000                                    
      securities—available-for-sale, amortized cost 1,648,421 and 926,112, respectively
                               1,636,223,000                                    
      securities—held-to-maturity, fair value 232,537 and 262,188, respectively
                               234,220,000                                    
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares issued and outstanding at december 31, 2018 and december 31, 2017
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 74,933 shares issued and outstanding at december 31, 2018; 100,029 shares issued and outstanding at december 31, 2017
                               1,406,000                                    
      securities—trading, amortized cost 27,340 and 27,246, respectively
                                25,764,000                                   
      securities—available-for-sale, amortized cost 1,451,897 and 926,112, respectively
                                1,412,273,000                                   
      securities—held-to-maturity, fair value 254,094 and 262,188, respectively
                                258,699,000                                   
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2018 and december 31, 2017
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 74,933 shares issued and outstanding at september 30, 2018; 100,029 shares issued and outstanding at december 31, 2017
                                1,246,000                                   
      total liabilities & shareholders' equity
                                10,514,303,000 10,379,194,000 10,317,264,000  10,443,086,000 10,199,820,000 10,068,378,000  9,841,028,000 9,916,205,000 9,745,594,000                         
      securities—trading, amortized cost 27,303 and 27,246, respectively
                                 25,640,000                                  
      securities—available-for-sale, amortized cost 1,429,925 and 926,112, respectively
                                 1,400,312,000                                  
      securities—held-to-maturity, fair value 260,318 and 262,188, respectively
                                 263,176,000                                  
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2018 and december 31, 2017
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 74,933 shares issued and outstanding at june 30, 2018; 100,029 shares issued and outstanding at december 31, 2017
                                 1,254,000                                  
      securities—trading, amortized cost 27,275 and 27,246, respectively
                                  25,574,000                                 
      securities—available-for-sale, amortized cost 1,427,764 and 926,112, respectively
                                  1,406,505,000                                 
      securities—held-to-maturity, fair value 260,918 and 262,188, respectively
                                  262,645,000                                 
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2018 and december 31, 2017
                                                                   
      common stock (non-voting) and paid in capital- 0.01 par value per share, 5,000,000 shares authorized; 76,928 shares issued and outstanding at march 31, 2018; 100,029 shares issued and outstanding at december 31, 2017
                                  1,046,000                                 
      securities—trading, amortized cost 27,246 and 30,154, respectively
                                   22,318,000                                
      securities—available-for-sale, amortized cost 926,112 and 811,847, respectively
                                   919,485,000                                
      securities—held-to-maturity, fair value 262,188 and 270,528, respectively
                                   260,271,000                                
      advances from fhlb at fair value
                                   202,000 263,349,000 50,212,000 213,000 54,216,000 62,342,000 325,383,000 75,400,000 133,381,000 16,435,000 236,000 250,000 32,250,000 250,000 45,251,000 48,351,000 27,250,000 20,258,000 54,262,000 278,000 10,304,000 10,367,000 43,523,000 46,833,000 255,806,000 115,946,000 111,415,000 182,496,000     
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares issued and outstanding at december 31, 2017 and december 31, 2016
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 100,029 shares issued and outstanding at december 31, 2017; 84,788 shares issued and outstanding at december 31, 2016
                                   1,208,000                                
      securities—trading, amortized cost 28,663 and 30,154, respectively
                                    23,466,000                               
      securities—available-for-sale, amortized cost 1,338,863 and 806,336, respectively
                                    1,339,057,000                               
      securities—held-to-maturity, fair value 268,663 and 270,528, respectively
                                    264,752,000                               
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2017 and december 31, 2016
                                                                   
      common stock (non-voting) and paid in capital- 0.01 par value per share, 5,000,000 shares authorized; 100,029 shares issued and outstanding at september 30, 2017; 84,788 shares issued and outstanding at december 31, 2016
                                    935,000                               
      liability for common stock issued to deferred, stock related, compensation plans
                                    7,283,000 7,283,000 7,283,000 7,283,000 7,241,000 7,286,000 7,310,000 6,928,000 6,833,000 6,993,000 6,950,000 6,669,000    7,063,000    7,242,000  8,459,000 8,724,000 9,066,000 8,820,000 8,808,000 8,526,000 7,847,000 7,856 7,499,000  
      securities—trading, amortized cost 30,221 and 30,154, respectively
                                     24,950,000                              
      securities—available-for-sale, amortized cost 1,290,189 and 806,336, respectively
                                     1,290,159,000                              
      securities—held-to-maturity, fair value 272,089 and 270,528, respectively
                                     268,050,000                              
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2017 and december 31, 2016
                                                                   
      common stock (non-voting) and paid in capital- 0.01 par value per share, 5,000,000 shares authorized; 99,117 shares issued and outstanding at june 30, 2017; 84,788 shares issued and outstanding at december 31, 2016
                                     738,000                              
      securities—trading, amortized cost 30,187 and 30,154, respectively
                                      24,753,000                             
      securities—available-for-sale, amortized cost 1,226,747 and 806,336, respectively
                                      1,223,764,000                             
      securities—held-to-maturity, fair value 269,402 and 270,528, respectively
                                      266,391,000                             
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2017 and december 31, 2016
                                                                   
      common stock (non-voting) and paid in capital- 0.01 par value per share, 5,000,000 shares authorized; 60,916 shares issued and outstanding at march 31, 2017; 84,788 shares issued and outstanding at december 31, 2016
                                      472,000                             
      securities—trading, amortized cost 30,154 and 39,344, respectively
                                       24,568,000                            
      securities—available-for-sale, amortized cost 806,336 and 1,139,740, respectively
                                       800,917,000                            
      securities—held-to-maturity, fair value 270,528 and 226,627, respectively
                                       267,873,000                            
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares issued and outstanding at december 31, 2016 and december 31, 2015
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 84,788 shares issued and outstanding at december 31, 2016; 1,424,466 shares issued and outstanding at december 31, 2015
                                       612,000                            
      securities—trading, amortized cost 36,119 and 39,344, respectively
                                        30,889,000                           
      securities—available-for-sale, amortized cost 993,913 and 1,139,740, respectively
                                        1,006,414,000                           
      securities—held-to-maturity, fair value 283,303 and 226,627, respectively
                                        271,975,000                           
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2016 and december 31, 2015
                                                                   
      common stock (non-voting) and paid in capital- 0.01 par value per share, 5,000,000 shares authorized; 88,478 shares issued and outstanding at september 30, 2016; 1,424,466 shares issued and outstanding at december 31, 2015
                                        1,389,000                           
      securities—trading, amortized cost 38,887 and 39,344, respectively
                                         33,753,000                          
      securities—available-for-sale, amortized cost 1,159,863 and 1,139,740, respectively
                                         1,177,757,000                          
      securities—held-to-maturity, fair value 267,501 and 226,627, respectively
                                         254,666,000                          
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2016 and december 31, 2015
                                                                   
      common stock (non-voting) and paid in capital- 0.01 par value per share, 5,000,000 shares authorized; 895,894 shares issued and outstanding at june 30, 2016; 1,424,466 shares issued and outstanding at december 31, 2015
                                         39,615,000                          
      securities—trading, amortized cost 39,155 and 39,344, respectively
                                          33,994,000                         
      securities—available-for-sale, amortized cost 1,186,995 and 1,139,740, respectively
                                          1,199,279,000                         
      securities—held-to-maturity, fair value 255,823 and 226,627, respectively
                                          246,320,000                         
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2016 and december 31, 2015
                                                                   
      common stock (non-voting) and paid in capital- 0.01 par value per share, 5,000,000 shares authorized; 1,390,776 shares issued and outstanding at march 31, 2016; 1,424,466 shares issued and outstanding at december 31, 2015
                                          64,744,000                         
      securities—trading, amortized cost 39,344 and 47,480, respectively
                                           34,134,000                        
      securities—available-for-sale, amortized cost 1,139,740 and 411,424, respectively
                                           1,138,573,000                        
      securities—held-to-maturity, fair value 226,627 and 137,608, respectively
                                           220,666,000                        
      income tax receivable
                                           1,607,000   2,462,000   166,000 1,163,000 9,728,000 10,964,000               
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares issued and outstanding at december 31, 2015 and december 31, 2014
                                                                   
      common stock (non-voting) and paid in capital - 0.01 par value per share, 5,000,000 shares authorized; 1,424,466 shares issued and outstanding at december 31, 2015; no shares issued and outstanding at december 31, 2014
                                           67,904,000                        
      securities—trading, amortized cost 42,716 and 47,480, respectively
                                            37,515,000                       
      securities—available-for-sale, amortized cost 416,731 and 411,424, respectively
                                            418,254,000                       
      securities—held-to-maturity, fair value 138,255 and 137,608, respectively
                                            132,150,000                       
      loans receivable:
                                                                   
      held for sale
                                            3,136,000 1,154,000 9,419,000 2,786,000 6,949,000 7,322,000 3,239,000 2,734,000 8,394,000 6,393,000 5,384,000 11,920,000 6,898,000 3,492,000          
      held for portfolio
                                            4,369,458,000 4,245,322,000 4,105,399,000 3,831,034,000 3,799,746,000 3,755,277,000 3,519,673,000 3,415,711,000 3,267,042,000 3,283,808,000 3,234,937,000 3,223,794,000 3,206,625,000 3,399,625,000 3,494,557,000 3,891,413,000 3,904,704,000 3,953,995,000 3,966,482,000 3,805,021,000 3,617,130 3,610,174,000  
      goodwill and other intangibles
                                            26,605,000 26,891,000 27,258,000             11,718,000 12,365,000 13,716,000 86,205,000 137,654,000 128,868 129,126,000  
      stockholders’ equity
                                                                   
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at september 30, 2015 and december 31, 2014
                                                                   
      common stock (non-voting) - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at september 30, 2015; and december 31, 2014
                                                                   
      interest income:
                                                                   
      mortgage-backed securities
                                            1,307,000 1,275,000 1,027,000 5,779,000 1,459,000 1,446,000 1,471,000 5,168,000 1,281,000 1,394,000 1,172,000 4,176,000 1,089,000 4,045,000 972,000 1,422,000 1,569,000 4,639,000    1,535,000  
      securities and cash equivalents
                                            1,737,000 1,723,000 1,677,000 7,341,000 1,809,000 1,895,000 1,892,000 7,340,000 1,803,000 1,885,000 1,847,000 8,664,000 2,132,000 8,253,000   2,089,000 11,308,000    1,829,000  
      interest expense:
                                                                   
      deposits
                                            1,738,000 1,768,000 1,733,000 7,578,000 1,903,000 1,910,000 1,964,000 9,737,000 2,330,000 2,490,000 2,719,000 15,107,000 3,536,000 52,320,000 12,301,000 20,818,000 21,638,000 110,314,000    32,378,000 -336,000 
      fhlb advances
                                            4,000 3,000 17,000 125,000 20,000 51,000 38,000 99,000 28,000 40,000 24,000 254,000 64,000 1,318,000 323,000 630,000 675,000 5,407,000      
      junior subordinated debentures
                                            816,000 800,000 740,000 2,914,000 734,000 726,000 721,000 2,968,000 742,000 742,000 741,000 3,395,000 805,000 4,226,000 1,100,000 1,118,000 1,249,000 7,353,000      
      net interest income before benefit from loan losses
                                            52,188,000 51,457,000 46,536,000 179,872,000 47,064,000 43,808,000 42,339,000 166,716,000 41,893,000 42,248,000 40,968,000 167,648,000 42,698,000 157,770,000 39,922,000 36,352,000 34,925,000 147,553,000    38,110,000  
      benefit from loan losses
                                                       13,000,000 3,000,000 70,000,000 20,000,000 25,000,000 45,000,000 62,500,000    1,400,000  
      net interest income
                                            52,188,000 51,457,000 46,536,000 179,872,000 47,064,000 43,808,000 42,339,000 166,716,000 41,893,000 42,248,000 40,968,000 154,648,000 39,698,000 87,770,000 19,922,000 11,352,000  85,053,000    36,710,000  
      other operating income:
                                                                   
      deposit fees and other service charges
                                            9,746,000 9,563,000 8,126,000 30,553,000 8,289,000 7,346,000 6,602,000 26,581,000 6,982,000 6,628,000 6,301,000 25,266,000 6,681,000 22,009,000 5,702,000 5,705,000 5,408,000 21,540,000    4,090,000  
      mortgage banking operations
                                            4,426,000 4,703,000 4,109,000 10,249,000 2,842,000 2,600,000 1,840,000 11,170,000 2,590,000 3,574,000 2,838,000 12,940,000 3,397,000 6,370,000 2,519,000 2,065,000 2,860,000 6,045,000    1,808,000  
      miscellaneous
                                            1,039,000 1,106,000 921,000 2,957,000 761,000 644,000 636,000 3,484,000 920,000 664,000 790,000 4,697,000 1,146,000 2,302,000 919,000 768,000 412,000 1,185,000    592,000  
      gain on sale of securities
                                                6,000  35,000 1,022,000 2,000 12,000 1,006,000 51,000 19,000           
      net change in valuation of financial instruments carried at fair value
                                             797,000 1,050,000 1,374,000 1,452,000 464,000       473,000 1,747,000 1,366,000 4,633,000 11,049,000 9,156,000    -1,877,000  
      acquisition bargain purchase gain
                                               9,079,000  9,079,000                  
      total other operating income
                                            14,098,000 16,141,000 13,696,000 54,254,000 13,350,000 20,133,000 8,858,000 43,342,000 10,142,000 10,623,000 9,997,000 26,902,000 11,684,000 29,148,000 7,652,000 13,453,000 19,977,000 39,889,000    4,986,000  
      other operating expenses:
                                                                   
      salary and employee benefits
                                            27,026,000 26,744,000 24,287,000 89,778,000 22,971,000 22,330,000 21,156,000 84,388,000 21,244,000 21,224,000 20,729,000 78,696,000 19,614,000 67,490,000 17,093,000 17,379,000 17,528,000 76,104,000    19,635,000  
      less capitalized loan origination costs
                                                             -8,739,000    -3,175,000  
      occupancy and equipment
                                            6,470,000 6,357,000 6,006,000 22,743,000 5,819,000 5,540,000 5,696,000 21,423,000 5,317,000 5,415,000 5,329,000 21,812,000 5,811,000 22,232,000 5,546,000 5,715,000 5,928,000 24,010,000    5,106,000  
      information/computer data services
                                            2,219,000 2,273,000 2,253,000 8,131,000 2,131,000 1,918,000 1,935,000 7,309,000 1,710,000 1,923,000 1,720,000 6,904,000 1,807,000 6,132,000 1,501,000 1,551,000 1,599,000 6,698,000    1,767,000  
      payment and card processing expenses
                                            4,168,000 3,742,000 3,016,000 11,460,000 3,201,000 2,746,000 2,515,000 9,870,000 2,530,000 2,449,000 2,305,000 8,604,000 2,335,000 7,067,000 2,018,000 1,778,000 1,555,000 6,993,000      
      professional services
                                            951,000 721,000 814,000 3,753,000 784,000 1,109,000 1,038,000 4,331,000 1,074,000 820,000 905,000 4,411,000 993,000 6,401,000 1,500,000 1,456,000 1,183,000 4,378,000    723,000  
      advertising and marketing
                                            1,959,000 2,198,000 1,610,000 6,266,000 2,454,000 1,370,000 1,057,000 6,885,000 1,556,000 1,798,000 1,499,000 7,215,000 1,897,000 7,457,000 2,025,000 1,899,000 2,207,000 6,676,000      
      deposit insurance
                                            713,000 625,000 567,000 2,415,000 607,000 637,000 576,000 2,329,000 564,000 617,000 645,000 3,685,000 791,000 8,622,000 2,282,000 2,219,000 4,102,000 3,969,000      
      state/municipal business and use taxes
                                            475,000 455,000 453,000 1,437,000 475,000 388,000 159,000 1,941,000 461,000 538,000 464,000 2,289,000 582,000 2,259,000 630,000 558,000 532,000 2,257,000      
      reo operations
                                             167,000 24,000    39,000     3,354,000  26,025,000 11,757,000         
      amortization of core deposit intangibles
                                            286,000 367,000 616,000 1,990,000 531,000 450,000 479,000 1,941,000 471,000 477,000 505,000 2,092,000 508,000 2,459,000 600,000   2,828,000      
      acquisition-related costs
                                            2,207,000 3,885,000 1,648,000                     
      total other operating expenses
                                            46,697,000 47,734,000 41,914,000 153,741,000 38,495,000 38,435,000 35,581,000 140,975,000 34,490,000 35,457,000 34,099,000 141,453,000 33,355,000 160,801,000 46,328,000 36,629,000 36,891,000 260,020,000    31,299,000  
      income before benefit from income taxes
                                            19,589,000 19,864,000 18,318,000 80,385,000 21,919,000 25,506,000 15,616,000 69,083,000 17,545,000 17,414,000 16,866,000 40,097,000 18,027,000     -135,078,000    10,397,000  
      benefit from income taxes
                                            6,642,000 6,615,000 6,184,000 26,220,000 7,076,000 8,499,000 5,046,000 22,528,000 5,880,000 5,661,000 5,284,000  2,407,000 18,013,000 23,988,000   -7,085,000    3,286,000  
      net income
                                            12,947,000 13,249,000 12,134,000 54,165,000 14,843,000 17,007,000 10,570,000 46,555,000 11,665,000 11,753,000 11,582,000 64,882,000 15,620,000     -127,993,000    7,111,000  
      earnings per common share:
                                                                   
      basic
                                            620 640 610 2,800 770 880 550 2,400 600 610 600 3,170 800     -7,940    490  
      diluted
                                            620 640 610 2,790 760 880 540 2,400 600 600 600 3,160 790     -7,940    480  
      cumulative dividends declared per common share
                                            180 180 180 720 180 180 180 540 150 120 120 40  40    500      
      securities—trading, amortized cost 37,055 and 47,480, respectively
                                             32,404,000                      
      securities—available-for-sale, amortized cost 387,521 and 411,424, respectively
                                             387,876,000                      
      securities—held-to-maturity, fair value 137,267 and 137,608, respectively
                                             132,197,000                      
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at june 30, 2015 and december 31, 2014
                                                                   
      common stock (non-voting) - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at june 30, 2015; no shares issued and outstanding at december 31, 2014
                                                                   
      securities—trading, amortized cost 43,878 and 47,480, respectively
                                              38,074,000                     
      securities—available-for-sale, amortized cost 393,831 and 411,424, respectively
                                              395,607,000                     
      securities—held-to-maturity, fair value 140,499 and 137,608, respectively
                                              133,649,000                     
      preferred stock - 0.01 par value per share, 500,000 shares authorized; no shares outstanding at march 31, 2015 and december 31, 2014
                                                                   
      common stock (not-voting) - 0.01 par value per share, 5,000,000 shares authorized; no shares issued and outstanding at march 31, 2015; no shares issued and outstanding at december 31, 2014
                                                                   
      securities—trading, amortized cost 47,480 and 75,150, respectively
                                               40,258,000                    
      securities—available-for-sale, amortized cost 411,424 and 474,960, respectively
                                               411,021,000                    
      securities—held-to-maturity, fair value 137,608 and 103,610, respectively
                                               131,258,000                    
      federal home loan bank stock
                                               27,036,000    35,390,000    36,705,000 37,038,000 37,371,000    37,371,000  37,371,000 37,291 37,291,000  
      intangible assets
                                               2,831,000 3,362,000 3,892,000 1,970,000 2,449,000 2,937,000 3,247,000 3,724,000 4,230,000 4,740,000 8,609,000          
      preferred stock - 0.01 par value, 500,000 shares authorized; no shares outstanding at december 31, 2014 and december 31, 2013
                                                                   
      unearned shares of common stock issued to employee stock ownership plan (esop) at cost: no shares outstanding at december 31, 2014 and 34,340 restricted shares outstanding at december 31, 2013
                                                                   
      net gain on sale of securities
                                               42,000                    
      other-than-temporary impairment recovery
                                                   409,000   409,000             
      proposed acquisition termination fee
                                                   2,954,000                
      acquisition related costs
                                               4,325,000  1,979,000                  
      preferred stock dividend and discount accretion
                                                                   
      preferred stock dividend
                                                       4,938,000 1,227,000 6,200,000 1,550,000 1,550,000 1,550,000 689,000      
      preferred stock discount accretion
                                                       3,298,000 1,216,000 1,593,000 398,000 373,000 373,000 161,000      
      gain on repurchase of preferred stock
                                                                   
      net income available to common shareholders
                                               54,165,000    46,555,000 11,665,000 11,753,000 11,582,000 59,117,000 15,247,000     -128,843,000      
      earnings per common share
                                                                   
      securities—trading, amortized cost 58,390 and 75,150, respectively
                                                51,076,000                   
      securities—available-for-sale, amortized cost 435,272 and 474,960, respectively
                                                433,745,000                   
      securities—held-to-maturity, fair value 138,754 and 103,610, respectively
                                                133,069,000                   
      unearned shares of common stock issued to employee stock ownership plan (esop) trust at cost: no shares outstanding at september 30, 2014 and 34,340 shares outstanding at december 31, 2013
                                                                   
      securities—trading, amortized cost 70,472 and 75,150, respectively
                                                 61,393,000                  
      securities—available-for-sale, amortized cost 455,232 and 474,960, respectively
                                                 455,353,000                  
      securities—held-to-maturity, fair value 138,065 and 103,610, respectively
                                                 133,186,000                  
      accumulated deficit
                                                                   
      unearned shares of common stock issued to employee stock ownership plan (esop) trust at cost: no shares outstanding at june 30, 2014 and 34,340 shares outstanding at december 31, 2013
                                                                   
      securities—trading, amortized cost 71,110 and 75,150, respectively
                                                  58,387,000                 
      securities—available-for-sale, amortized cost 466,866 and 474,960, respectively
                                                  464,657,000                 
      securities—held-to-maturity, fair value 112,409 and 103,610, respectively
                                                  109,567,000                 
      unearned shares of common stock issued to employee stock ownership plan (esop) trust at cost: no shares outstanding at march 31, 2014 and 34,340 shares outstanding at december 31, 2013
                                                                   
      securities—trading, amortized cost 75,150 and 90,339, respectively
                                                   62,472,000                
      securities—available-for-sale, amortized cost 474,960 and 469,650, respectively
                                                   470,280,000                
      securities—held-to-maturity, fair value 103,610 and 92,458, respectively
                                                   102,513,000                
      real estate owned, held for sale
                                                   4,044,000    15,778,000 20,356,000 100,872,000  53,576,000 56,967,000 21,782,000 11,390,000 1,867,000 3,072 1,700,000  
      interest-bearing transactions and savings accounts
                                                   1,629,885,000    1,547,271,000  1,433,248,000    1,137,878,000 1,216,217,000 1,288,112,000 1,299,232 1,307,680,000  
      unearned shares of common stock issued to employee stock ownership plan (esop) at cost: 34,340 restricted shares outstanding at december 31, 2013 and 2012
                                                                   
      total interest income
                                                   179,712,000                
      total interest expense
                                                   12,996,000                
      securities—trading, amortized cost 76,525 and 90,339, respectively
                                                    63,887,000               
      securities—available-for-sale, amortized cost 481,867 and 469,650, respectively
                                                    477,407,000               
      securities—held-to-maturity, fair value 98,401 and 92,458, respectively
                                                    96,545,000               
      unearned shares of common stock issued to employee stock ownership plan (esop) trust at cost: 34,340 restricted shares outstanding at september 30, 2013 and december 31, 2012
                                                                   
      preferred stock dividend, discount accretion and gains
                                                                   
      securities—trading, amortized cost 0 and 0, respectively
                                                     65,524,000              
      securities—available-for-sale, amortized cost 0 and 0, respectively
                                                     469,137,000              
      securities—held-to-maturity, fair value 0 and 0, respectively
                                                     94,336,000              
      income taxes
                                                     37,592,000 34,242,000             
      unearned shares of common stock issued to employee stock ownership plan (esop) trust at cost: 34,340 restricted shares outstanding at june 30, 2013 and december 31, 2012
                                                                   
      securities—trading, amortized cost 80,193 and 90,339, respectively
                                                      67,761,000             
      securities—available-for-sale, amortized cost 473,908 and 469,650, respectively
                                                      476,683,000             
      securities—held-to-maturity, fair value 93,785 and 92,458, respectively
                                                      88,408,000             
      unearned shares of common stock issued to employee stock ownership plan (esop) trust at cost: 34,340 restricted shares outstanding at march 31, 2013 and december 31, 2012
                                                                   
      securities—trading, amortized cost 90,339 and 112,663, respectively
                                                       71,232,000            
      securities—available-for-sale, amortized cost 469,650 and 462,579, respectively
                                                       472,920,000            
      securities—held-to-maturity, fair value 92,458 and 80,107, respectively
                                                       86,452,000            
      preferred stock - 0.01 par value, 500,000 shares authorized; series a – liquidation preference 1,000 per share, no shares outstanding at december 31, 2012 and 124,000 outstanding at december 31, 2011
                                                                   
      unearned shares of common stock issued to employee stock ownership plan (esop) trust at cost:
                                                                   
      34,340 restricted shares outstanding at december 31, 2012 and 2011
                                                                   
      loan servicing fees, net of amortization and impairment
                                                       872,000 377,000 951,000          
      securities—trading, amortized cost 92,017 and 112,663, respectively
                                                        72,593,000           
      securities—available-for-sale, amortized cost 456,228 and 462,579, respectively
                                                        459,958,000           
      securities—held-to-maturity, fair value 95,176 and 80,107, respectively
                                                        88,626,000           
      preferred stock - 0.01 par value, 500,000 shares authorized; series a – liquidation preference 1,000 per share, 73,416 and 124,000 shares issued and outstanding at september 30, 2012 and december 31, 2011, respectively
                                                        72,242,000           
      unearned shares of common stock issued to employee stock ownership plan (esop) trust at cost 34,340 restricted shares outstanding at september 30, 2012 and december 31, 2011
                                                                   
      gain on repurchase and retirement of preferred stock
                                                                   
      cumulative dividends declared per common share:
                                                        10  10 10 10     190  
      securities—trading, amortized cost 128,070 and 192,853, respectively
                                                         95,379,000          
      securities—available-for-sale, amortized cost 199,058 and 95,174, respectively
                                                         200,227,000          
      securities—held-to-maturity, fair value 73,916 and 76,489, respectively
                                                         72,087,000          
      deferred income tax asset
                                                           8,516,000 8,942,000 5,528,000 1,998,000  3,660 4,764,000  
      income taxes receivable
                                                         12,981,000 12,981,000 20,913,000 15,212,000 9,675,000 3,652,000 1,610,000    
      preferred stock - 0.01 par value, 500,000 shares authorized;
                                                                   
      series a – liquidation preference 1,000 per share, 124,000 shares issued and outstanding
                                                         119,000,000          
      240,381 restricted shares outstanding at december 31, 2010 and 2009
                                                                   
      other-than-temporary impairment losses
                                                                   
      goodwill write-off
                                                             121,121,000      
      securities—trading, cost 133,468 and 192,853, respectively
                                                          101,760,000         
      securities—available-for-sale, cost 151,694 and 95,174, respectively
                                                          153,903,000         
      securities—held-to-maturity, fair value 72,098 and 76,489, respectively
                                                          66,929,000         
      held for sale, fair value 3,599 and 4,534, respectively
                                                          3,545,000         
      preferred stock - 0.01 par value, 500,000 shares authorized; series a – liquidation preference
                                                                   
      1,000 per share, 124,000 shares issued and outstanding
                                                          118,602,000 117,034,000 116,661,000       
      accumulated other comprehensive income:
                                                                   
      unrealized gain on securities available-for-sale and/or transferred to held-to-maturity
                                                          1,381,000         
      240,381 restricted shares outstanding at september 30, 2010 and december 31, 2009
                                                                   
      other securities and cash equivalents
                                                          2,116,000 1,976,000        
      loan servicing fees
                                                          146,000 282,000 248,000 1,963,000    373,000  
      securities—trading, cost 211,548 and 245,274, respectively
                                                           167,944,000        
      securities—available-for-sale, cost 73,305 and 52,190, respectively
                                                           74,527,000        
      securities—held-to-maturity, fair value 79,266 and 60,530, respectively
                                                           76,630,000        
      held for sale, fair value 4,835 and 7,540, respectively
                                                           4,781,000        
      common stock - 0.01 par value per share, 75,000,000 shares authorized, 19,933,943 shares issued: 19,693,562 shares and 16,911,657 shares outstanding at september 30, 2009 and december 31, 2008, respectively
                                                           327,385,000        
      unrealized gain on securities available for sale and/or transferred to held to maturity
                                                           703,000 62,000       
      240,381 restricted shares outstanding at september 30, 2009 and december 31, 2008
                                                                   
      real estate owned expenses
                                                           2,799,000 1,805,000       
      earnings
                                                                   
      securities—trading, cost 213,762 and 245,274, respectively
                                                            167,476,000       
      securities—available-for-sale, cost 50,506 and 52,190, respectively
                                                            50,980,000       
      securities—held-to-maturity, fair value 77,478 and 60,530, respectively
                                                            77,321,000       
      held for sale, fair value 8,480 and 7,540, respectively
                                                            8,377,000       
      common stock - 0.01 par value per share, 25,000,000 shares authorized, 18,426,458 shares issued: 18,186,077 shares and 16,911,657 shares outstanding at june 30, 2009 and december 31, 2008, respectively
                                                            322,582,000       
      240,381 restricted shares outstanding at june 30, 2009 and december 31, 2008
                                                                   
      assets
                                                                   
      securities—trading, cost 245,274 and 204,279, respectively
                                                             203,902,000      
      securities—available-for-sale, cost 52,190 and none, respectively
                                                             53,272,000      
      securities—held-to-maturity, fair value 60,530 and 54,721, respectively
                                                             59,794,000      
      held for sale, fair value 7,540 and 4,680, respectively
                                                             7,413,000      
      deferred income tax liability
                                                               2,595,000    
      preferred stock - 0.01 par value, 500,000 shares authorized, none issued
                                                                   
      preferred stock - series a – liquidation preference 1,000 per share, 124,000 shares authorized and issued
                                                             115,915,000      
      common stock - 0.01 par value per share, 25,000,000 shares authorized, 17,152,038 shares issued: 16,911,657 shares and 16,025,768 shares outstanding at december 31, 2008 and 2007, respectively
                                                             316,740,000      
      unrealized loss on securities available for sale and/or transferred to held to maturity
                                                             572,000   -189 -202,000  
      unearned shares of common stock issued to employee stock ownership plan (esop) trust at cost: 240,381 and 240,381 restricted shares outstanding at december 31, 2008 and 2007, respectively
                                                             -1,987,000      
      insurance recovery, net proceeds
                                                                   
      securities at fair value, cost 250,046 and 204,279, respectively
                                                              238,670,000     
      securities held to maturity, fair value 56,515 and 55,010, respectively
                                                              55,612,000     
      held for sale, fair value 6,898 and 4,680, respectively
                                                              6,817,000     
      common stock - 0.01 par value per share, 25,000,000 shares authorized, 16,305,282 shares issued: 16,064,901 shares and 16,025,768 shares outstanding at june 30, 2008 and december 31, 2007, respectively
                                                              299,425,000     
      unrealized loss on securities available for sale transferred to held to maturity
                                                                   
      240,381 and 240,381 restricted shares outstanding at june 30, 2008 and december 31, 2007, respectively
                                                                   
      securities at fair value, cost 204,279 and 0, respectively;
                                                                   
      encumbered 0 and 0, respectively
                                                               202,863,000    
      securities available for sale, cost 0 and 230,189, respectively;
                                                                   
      encumbered 0 and 27,107, respectively
                                                                   
      securities held to maturity, fair value 55,010 and 49,008, respectively
                                                               53,516,000    
      held for sale, fair value 4,680 and 5,136
                                                               4,596,000    
      deposits :
                                                                   
      advances from federal home loan bank
                                                                  -20,000,000 
      advances from federal home loan bank at fair value
                                                               167,045,000 24,577 33,826,000  
      income taxes payable
                                                                5,163 7,501,000  
      common stock - 0.01 par value per share, 25,000,000 shares authorized, 16,266,149 shares issued: 16,025,768 shares and 12,073,889 shares outstanding at december 31, 2007 and december 31, 2006, respectively
                                                               300,486,000    
      240,381 and 240,381 restricted shares outstanding at december 31, 2007 and december 31, 2006, respectively
                                                               -1,987,000    
      advertising & marketing
                                                                   
      state business and use taxes
                                                                   
      fhlb prepayment penalties
                                                                   
      securities at fair value, cost 160,767 and 0, respectively; encumbered 0 and 0, respectively
                                                                158,932   
      securities available for sale, cost 0 and 230,189, respectively; encumbered 0 and 27,107, respectively
                                                                   
      securities held to maturity, fair value 53,352 and 49,008, respectively
                                                                53,259   
      held for sale, fair value 4,176 and 5,136
                                                                4,121   
      stockholders' equity
                                                                   
      common stock - 0.01 par value per share, 25,000,000 shares authorized, 15,821,067 shares issued:
                                                                   
      15,580,686 shares and 12,073,889 shares outstanding at september 30, 2007 and december 31, 2006, respectively
                                                                282,636   
      240,381 and 240,381 restricted shares outstanding at september 30, 2007 and december 31, 2006, respectively
                                                                -1,987   
      securities at fair value, cost 186,625 and 0, respectively; encumbered 0 and 0, respectively
                                                                 182,969,000  
      securities held to maturity, fair value 48,928 and 49,008, respectively
                                                                 48,196,000  
      held for sale, fair value 8,269 and 5,136
                                                                 8,178,000  
      common stock - 0.01 par value per share, 25,000,000 shares authorized, 13,201,418 shares issued:
                                                                   
      15,440,105 shares and 12,073,889 shares outstanding at june 30, 2007 and december 31, 2006, respectively
                                                                 278,447,000  
      240,381 and 240,381 restricted shares outstanding at june 30, 2007 and december 31, 2006, respectively
                                                                 -1,987,000  
      federal home loan bank advances
                                                                 1,164,000  
      advertising
                                                                 1,867,000  
      date of acquisition
                                                                   
      new shares issued in acquisition
                                                                  1,773,402,000 
      cash paid to shareholders
                                                                  19,404,000 
      total value of banner’s common stock exchanged with acquiree’s shareholders
                                                                  78,030,000 
      transaction closing costs
                                                                  756,000 
      total purchase price
                                                                  98,190,000 
      allocation of purchase price
                                                                   
      acquisitions’ equity
                                                                  32,987,000 
      adjustments to record assets and liabilities at estimated fair value
                                                                   
      loans
                                                                  -195,000 
      premises and equipment
                                                                  3,315,000 
      core deposit intangible
                                                                  10,867,000 
      deferred taxes
                                                                  -4,916,000 
      estimated fair value of net assets acquired
                                                                  41,722,000 
      goodwill resulting from acquisition
                                                                  56,468,000 
      the fair value of assets and liabilities of acquired institutions at the date of acquisition follows:
                                                                   
      cash
                                                                  12,056,000 
      securities –available for sale
                                                                  6,768,000 
      federal funds sold and interest bearing deposits at banks
                                                                  137,000 
      loans-net of allowance for loan losses of 4,528, 1,429 and 1,319, respectively
                                                                  389,290,000 
      boli
                                                                  8,662,000 
      federal funds purchased and other borrowings
                                                                  -19,625,000 
      other liabilities
                                                                  -17,011,000 
      net assets acquired
                                                                  98,190,000 
    The information provided in this report is taken from www.sec.gov and many other data providers. While we have conducted our best efforts to ensure that the parsed data is accurate, we cannot guarantee its accuracy. Please use caution and understand that any consequences of its use are your own responsibility.