v3.26.3
LOANS AND ALLOWANCE FOR CREDIT LOSSES - Schedule of Risk Rating and Payment Performance (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Financing Receivable, Credit Quality Indicator [Line Items]          
Total loans $ 51,148,063   $ 51,148,063   $ 48,764,162
Writeoff, by Origination Year          
Current fiscal year 198 $ 910 847 $ 1,136  
One year before current fiscal year 1,292 6,703 8,703 15,249  
Two years before current fiscal year 3,056 3,889 15,377 10,566  
Three years before current fiscal year 22,067 8,819 43,106 23,310  
Four years before current fiscal year 2,057 5,275 13,485 19,008  
Prior 17,371 9,117 41,909 19,912  
Revolving 2,234 689 3,695 715  
Total 48,275 35,402 127,122 89,896  
Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Total loans 51,148,063   51,148,063   48,764,162
Commercial          
Financing Receivable, Credit Quality Indicator [Line Items]          
Total loans 16,260,724   16,260,724   14,983,861
Writeoff, by Origination Year          
Current fiscal year 0 684 478 684  
One year before current fiscal year 165 6,106 6,328 12,987  
Two years before current fiscal year 2,309 2,235 13,033 7,030  
Three years before current fiscal year 21,516 7,155 36,106 18,212  
Four years before current fiscal year 1,458 2,229 5,187 2,818  
Prior 15,357 3,659 22,434 6,454  
Revolving 1,022 0 1,413 0  
Total 41,827 22,068 84,979 48,185  
Commercial | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 2,743,470   2,743,470   3,113,091
Originated one year before current year 2,742,257   2,742,257   2,078,846
Originated two years before current year 1,814,327   1,814,327   1,429,431
Originated three years before current year 1,091,597   1,091,597   1,180,654
Originated four years before current year 873,267   873,267   698,629
Originated more than five years before current fiscal year 1,905,146   1,905,146   1,657,541
Revolving 4,079,935   4,079,935   3,678,704
Revolving to Term 1,010,725   1,010,725   926,555
Total loans 16,260,724   16,260,724   14,763,451
Commercial real estate          
Financing Receivable, Credit Quality Indicator [Line Items]          
Total loans 22,692,502   22,692,502   22,050,007
Writeoff, by Origination Year          
Current fiscal year 0 0 0 0  
One year before current fiscal year 0 0 0 0  
Two years before current fiscal year 0 603 0 906  
Three years before current fiscal year 21 1,024 4,804 2,980  
Four years before current fiscal year 265 2,787 6,450 14,783  
Prior 1,524 3,602 17,178 10,445  
Revolving 0 0 0 0  
Total 1,810 8,016 28,432 29,114  
Commercial real estate | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 3,245,746   3,245,746   3,773,282
Originated one year before current year 4,167,237   4,167,237   2,427,106
Originated two years before current year 2,455,970   2,455,970   2,805,294
Originated three years before current year 2,357,375   2,357,375   3,762,693
Originated four years before current year 2,952,440   2,952,440   2,192,606
Originated more than five years before current fiscal year 6,331,926   6,331,926   5,597,057
Revolving 118,344   118,344   231,381
Revolving to Term 1,063,464   1,063,464   1,084,918
Total loans 22,692,502   22,692,502   21,874,337
BBCC          
Writeoff, by Origination Year          
Current fiscal year   0 0 0  
One year before current fiscal year   0 50 0  
Two years before current fiscal year   303 325 316  
Three years before current fiscal year   94 537 125  
Four years before current fiscal year   10 384 23  
Prior   12 0 12  
Revolving   0 0 0  
Total 0 419 1,296 476  
BBCC | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year         57,480
Originated one year before current year         54,323
Originated two years before current year         52,297
Originated three years before current year         36,485
Originated four years before current year         21,026
Originated more than five years before current fiscal year         78,395
Revolving         68,455
Revolving to Term         27,619
Total loans         396,080
Residential real estate          
Financing Receivable, Credit Quality Indicator [Line Items]          
Total loans 8,770,515   8,770,515   8,467,496
Writeoff, by Origination Year          
Current fiscal year 0 0 0 0  
One year before current fiscal year 0 0 0 0  
Two years before current fiscal year 0 0 0 0  
Three years before current fiscal year 0 0 0 0  
Four years before current fiscal year 0 0 26 0  
Prior 72 25 432 302  
Revolving 0 0 0 0  
Total 72 25 458 302  
Residential real estate | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 707,176   707,176   957,369
Originated one year before current year 922,761   922,761   544,695
Originated two years before current year 457,429   457,429   595,035
Originated three years before current year 534,786   534,786   1,686,713
Originated four years before current year 1,593,976   1,593,976   1,965,514
Originated more than five years before current fiscal year 4,718,838   4,718,838   2,717,572
Revolving 0   0   0
Revolving to Term 569   569   598
Total loans 8,935,535   8,935,535   8,467,496
Residential real estate | Performing | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 706,570   706,570   955,730
Originated one year before current year 914,125   914,125   539,011
Originated two years before current year 450,122   450,122   584,626
Originated three years before current year 522,737   522,737   1,668,796
Originated four years before current year 1,578,121   1,578,121   1,960,186
Originated more than five years before current fiscal year 4,675,359   4,675,359   2,684,743
Revolving 0   0   0
Revolving to Term 569   569   598
Total loans 8,847,603   8,847,603   8,393,690
Residential real estate | Nonperforming | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 606   606   1,639
Originated one year before current year 8,636   8,636   5,684
Originated two years before current year 7,307   7,307   10,409
Originated three years before current year 12,049   12,049   17,917
Originated four years before current year 15,855   15,855   5,328
Originated more than five years before current fiscal year 43,479   43,479   32,829
Revolving 0   0   0
Revolving to Term 0   0   0
Total loans 87,932   87,932   73,806
Indirect          
Writeoff, by Origination Year          
Current fiscal year 149 213 252 225  
One year before current fiscal year 1,089 504 1,966 1,834  
Two years before current fiscal year 680 634 1,528 1,867  
Three years before current fiscal year 314 291 1,065 995  
Four years before current fiscal year 207 146 686 439  
Prior 100 75 249 202  
Revolving 0 0 0 0  
Total 2,539 1,863 5,746 5,562  
Indirect | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 478,794   478,794   418,498
Originated one year before current year 320,945   320,945   297,367
Originated two years before current year 208,067   208,067   172,620
Originated three years before current year 110,896   110,896   125,514
Originated four years before current year 70,116   70,116   43,302
Originated more than five years before current fiscal year 99,351   99,351   17,779
Revolving 137   137   155
Revolving to Term 0   0   0
Total loans 1,288,306   1,288,306   1,075,235
Indirect | Performing | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 478,444   478,444   417,924
Originated one year before current year 320,041   320,041   296,068
Originated two years before current year 206,793   206,793   170,873
Originated three years before current year 109,391   109,391   124,182
Originated four years before current year 69,087   69,087   42,664
Originated more than five years before current fiscal year 98,675   98,675   17,567
Revolving 137   137   155
Revolving to Term 0   0   0
Total loans 1,282,568   1,282,568   1,069,433
Indirect | Nonperforming | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 350   350   574
Originated one year before current year 904   904   1,299
Originated two years before current year 1,274   1,274   1,747
Originated three years before current year 1,505   1,505   1,332
Originated four years before current year 1,029   1,029   638
Originated more than five years before current fiscal year 676   676   212
Revolving 0   0   0
Revolving to Term 0   0   0
Total loans 5,738   5,738   5,802
Direct          
Writeoff, by Origination Year          
Current fiscal year   13 68 227  
One year before current fiscal year   93 321 428  
Two years before current fiscal year   114 424 447  
Three years before current fiscal year   154 378 897  
Four years before current fiscal year   103 625 945  
Prior   1,741 1,241 2,329  
Revolving   689 969 715  
Total 0 2,907 4,026 5,988  
Direct | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year         72,436
Originated one year before current year         54,712
Originated two years before current year         49,792
Originated three years before current year         53,745
Originated four years before current year         42,009
Originated more than five years before current fiscal year         135,567
Revolving         236,832
Revolving to Term         4,204
Total loans         649,297
Direct | Performing | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year         72,393
Originated one year before current year         54,308
Originated two years before current year         49,357
Originated three years before current year         53,343
Originated four years before current year         41,664
Originated more than five years before current fiscal year         132,876
Revolving         236,832
Revolving to Term         4,193
Total loans         644,966
Direct | Nonperforming | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year         43
Originated one year before current year         404
Originated two years before current year         435
Originated three years before current year         402
Originated four years before current year         345
Originated more than five years before current fiscal year         2,691
Revolving         0
Revolving to Term         11
Total loans         4,331
Home equity          
Writeoff, by Origination Year          
Current fiscal year 0 0 0 0  
One year before current fiscal year 0 0 0 0  
Two years before current fiscal year 0 0 0 0  
Three years before current fiscal year 0 101 0 101  
Four years before current fiscal year 37 0 37 0  
Prior 83 3 140 168  
Revolving 0 0 101 0  
Total 120 $ 104 278 $ 269  
Home equity | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 0   0   53
Originated one year before current year 52   52   111
Originated two years before current year 111   111   440
Originated three years before current year 289   289   2,165
Originated four years before current year 1,889   1,889   746
Originated more than five years before current fiscal year 18,624   18,624   20,272
Revolving 1,505,654   1,505,654   1,443,802
Revolving to Term 94,265   94,265   70,677
Total loans 1,620,884   1,620,884   1,538,266
Home equity | Performing | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 0   0   11
Originated one year before current year 52   52   71
Originated two years before current year 71   71   395
Originated three years before current year 235   235   1,227
Originated four years before current year 1,124   1,124   651
Originated more than five years before current fiscal year 15,100   15,100   16,913
Revolving 1,503,359   1,503,359   1,443,256
Revolving to Term 78,995   78,995   58,538
Total loans 1,598,936   1,598,936   1,521,062
Home equity | Nonperforming | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 0   0   42
Originated one year before current year 0   0   40
Originated two years before current year 40   40   45
Originated three years before current year 54   54   938
Originated four years before current year 765   765   95
Originated more than five years before current fiscal year 3,524   3,524   3,359
Revolving 2,295   2,295   546
Revolving to Term 15,270   15,270   12,139
Total loans 21,948   21,948   17,204
Other consumer          
Writeoff, by Origination Year          
Current fiscal year 49   49    
One year before current fiscal year 38   38    
Two years before current fiscal year 67   67    
Three years before current fiscal year 216   216    
Four years before current fiscal year 90   90    
Prior 235   235    
Revolving 1,212   1,212    
Total 1,907   1,907    
Other consumer | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 47,825   47,825    
Originated one year before current year 48,973   48,973    
Originated two years before current year 39,142   39,142    
Originated three years before current year 34,728   34,728    
Originated four years before current year 48,641   48,641    
Originated more than five years before current fiscal year 26,036   26,036    
Revolving 98,523   98,523    
Revolving to Term 6,244   6,244    
Total loans 350,112   350,112    
Other consumer | Performing | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 47,825   47,825    
Originated one year before current year 48,956   48,956    
Originated two years before current year 39,012   39,012    
Originated three years before current year 34,691   34,691    
Originated four years before current year 48,599   48,599    
Originated more than five years before current fiscal year 25,916   25,916    
Revolving 98,523   98,523    
Revolving to Term 6,244   6,244    
Total loans 349,766   349,766    
Other consumer | Nonperforming | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 0   0    
Originated one year before current year 17   17    
Originated two years before current year 130   130    
Originated three years before current year 37   37    
Originated four years before current year 42   42    
Originated more than five years before current fiscal year 120   120    
Revolving 0   0    
Revolving to Term 0   0    
Total loans 346   346    
Pass | Commercial | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 2,714,397   2,714,397   3,073,330
Originated one year before current year 2,654,598   2,654,598   1,895,772
Originated two years before current year 1,615,999   1,615,999   1,186,468
Originated three years before current year 907,248   907,248   1,064,904
Originated four years before current year 813,799   813,799   619,076
Originated more than five years before current fiscal year 1,776,103   1,776,103   1,567,563
Revolving 3,846,565   3,846,565   3,458,502
Revolving to Term 864,773   864,773   774,686
Total loans 15,193,482   15,193,482   13,640,301
Pass | Commercial real estate | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 3,243,624   3,243,624   3,746,158
Originated one year before current year 4,116,584   4,116,584   2,363,809
Originated two years before current year 2,288,401   2,288,401   2,510,901
Originated three years before current year 1,970,734   1,970,734   3,325,135
Originated four years before current year 2,587,533   2,587,533   1,945,116
Originated more than five years before current fiscal year 5,744,807   5,744,807   5,082,931
Revolving 116,931   116,931   169,450
Revolving to Term 990,403   990,403   886,279
Total loans 21,059,017   21,059,017   20,029,779
Pass | BBCC | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year         57,344
Originated one year before current year         53,469
Originated two years before current year         50,466
Originated three years before current year         35,366
Originated four years before current year         20,106
Originated more than five years before current fiscal year         75,805
Revolving         65,971
Revolving to Term         20,036
Total loans         378,563
Special Mention | Commercial | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 22,542   22,542   23,368
Originated one year before current year 48,943   48,943   84,827
Originated two years before current year 71,426   71,426   88,803
Originated three years before current year 47,929   47,929   18,830
Originated four years before current year 18,447   18,447   7,878
Originated more than five years before current fiscal year 13,440   13,440   8,161
Revolving 71,041   71,041   82,334
Revolving to Term 12,199   12,199   14,990
Total loans 305,967   305,967   329,191
Special Mention | Commercial real estate | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 1,317   1,317   12,351
Originated one year before current year 21,714   21,714   20,695
Originated two years before current year 21,311   21,311   85,266
Originated three years before current year 26,065   26,065   97,148
Originated four years before current year 56,273   56,273   102,821
Originated more than five years before current fiscal year 166,237   166,237   107,590
Revolving 1,185   1,185   16,239
Revolving to Term 8,737   8,737   24,962
Total loans 302,839   302,839   467,072
Special Mention | BBCC | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year         0
Originated one year before current year         663
Originated two years before current year         834
Originated three years before current year         512
Originated four years before current year         535
Originated more than five years before current fiscal year         1,490
Revolving         2,281
Revolving to Term         3,323
Total loans         9,638
Substandard | Commercial | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 6,531   6,531   16,253
Originated one year before current year 30,463   30,463   89,293
Originated two years before current year 113,231   113,231   113,232
Originated three years before current year 75,154   75,154   62,649
Originated four years before current year 31,471   31,471   68,265
Originated more than five years before current fiscal year 79,151   79,151   56,616
Revolving 154,392   154,392   129,209
Revolving to Term 64,815   64,815   85,729
Total loans 555,208   555,208   621,246
Substandard | Commercial real estate | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 805   805   14,773
Originated one year before current year 28,939   28,939   34,761
Originated two years before current year 137,863   137,863   184,806
Originated three years before current year 328,502   328,502   294,789
Originated four years before current year 275,962   275,962   116,261
Originated more than five years before current fiscal year 365,490   365,490   321,725
Revolving 228   228   45,692
Revolving to Term 44,692   44,692   120,284
Total loans 1,182,481   1,182,481   1,133,091
Substandard | BBCC | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year         86
Originated one year before current year         191
Originated two years before current year         474
Originated three years before current year         304
Originated four years before current year         26
Originated more than five years before current fiscal year         724
Revolving         203
Revolving to Term         2,877
Total loans         4,885
Nonaccrual | Commercial | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 0   0   140
Originated one year before current year 2,550   2,550   1,617
Originated two years before current year 2,670   2,670   6,003
Originated three years before current year 2,398   2,398   7,053
Originated four years before current year 3,392   3,392   1,001
Originated more than five years before current fiscal year 2,120   2,120   654
Revolving 767   767   8,659
Revolving to Term 5,261   5,261   1,944
Total loans 19,158   19,158   27,071
Nonaccrual | Commercial real estate | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 0   0   0
Originated one year before current year 0   0   4,721
Originated two years before current year 4,835   4,835   1,282
Originated three years before current year 813   813   6,905
Originated four years before current year 3,460   3,460   5,442
Originated more than five years before current fiscal year 10,060   10,060   24,308
Revolving 0   0   0
Revolving to Term 8   8   23,642
Total loans 19,176   19,176   66,300
Nonaccrual | BBCC | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year         50
Originated one year before current year         0
Originated two years before current year         60
Originated three years before current year         98
Originated four years before current year         359
Originated more than five years before current fiscal year         345
Revolving         0
Revolving to Term         1,115
Total loans         2,027
Doubtful | Commercial | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 0   0   0
Originated one year before current year 5,703   5,703   7,337
Originated two years before current year 11,001   11,001   34,925
Originated three years before current year 58,868   58,868   27,218
Originated four years before current year 6,158   6,158   2,409
Originated more than five years before current fiscal year 34,332   34,332   24,547
Revolving 7,170   7,170   0
Revolving to Term 63,677   63,677   49,206
Total loans 186,909   186,909   145,642
Doubtful | Commercial real estate | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year 0   0   0
Originated one year before current year 0   0   3,120
Originated two years before current year 3,560   3,560   23,039
Originated three years before current year 31,261   31,261   38,716
Originated four years before current year 29,212   29,212   22,966
Originated more than five years before current fiscal year 45,332   45,332   60,503
Revolving 0   0   0
Revolving to Term 19,624   19,624   29,751
Total loans $ 128,989   $ 128,989   178,095
Doubtful | BBCC | Portfolio Segment After Reclassifications          
Financing Receivable, Credit Quality Indicator [Line Items]          
Originated in current fiscal year         0
Originated one year before current year         0
Originated two years before current year         463
Originated three years before current year         205
Originated four years before current year         0
Originated more than five years before current fiscal year         31
Revolving         0
Revolving to Term         268
Total loans         $ 967