v3.26.1
Loans and Allowance for Credit Losses Credit Quality Indicators (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Total          
Total $ 25,934,293   $ 25,934,293   $ 24,144,884
Current period gross charge-offs (26,010) $ (15,916) (44,328) $ (35,950)  
Decrease in criticized and classified loans     $ 193,200    
Percentage decrease in criticized and classified loans     13.30%    
Real estate - commercial mortgage          
Total          
Total 10,914,813   $ 10,914,813   9,820,944
Gross loans 10,914,813   10,914,813   9,820,944
Commercial and Industrial          
Total          
Total 4,559,732   4,559,732   4,539,060
Gross loans 4,559,732   4,559,732   4,539,060
Leases and other loans          
Total          
Total 355,984   355,984   337,409
Gross loans 355,984   355,984   337,409
Real estate - residential mortgage          
Total          
Total 7,250,949   7,250,949   6,669,993
Gross loans 7,250,949   7,250,949   6,669,993
Portfolio Segment and Loan Class          
2026          
Total 1,198,041   1,198,041   1,746,969
2025          
Total 1,775,181   1,775,181   1,442,493
2024          
Total 1,427,335   1,427,335   1,906,743
2023          
Total 1,773,923   1,773,923   1,875,404
2022          
Total 2,132,917   2,132,917   1,666,358
Prior          
Total 6,495,392   6,495,392   5,036,650
Revolving Loans Amortized Cost Basis          
Total 1,695,904   1,695,904   1,735,645
Total          
Total 16,512,957   16,512,957   15,424,968
Portfolio Segment and Loan Class | Pass          
2026          
Total 1,196,718   1,196,718   1,720,693
2025          
Total 1,699,990   1,699,990   1,381,996
2024          
Total 1,363,517   1,363,517   1,731,580
2023          
Total 1,656,127   1,656,127   1,646,837
2022          
Total 1,914,242   1,914,242   1,423,179
Prior          
Total 5,865,620   5,865,620   4,533,408
Revolving Loans Amortized Cost Basis          
Total 1,551,225   1,551,225   1,526,739
Total          
Total 15,248,721   15,248,721   13,967,524
Portfolio Segment and Loan Class | Special Mention          
2026          
Total 1,003   1,003   21,902
2025          
Total 46,550   46,550   33,149
2024          
Total 31,110   31,110   61,456
2023          
Total 65,482   65,482   87,442
2022          
Total 108,581   108,581   124,958
Prior          
Total 276,835   276,835   227,106
Revolving Loans Amortized Cost Basis          
Total 57,922   57,922   103,346
Total          
Total 594,935   594,935   666,538
Portfolio Segment and Loan Class | Substandard or Lower          
2026          
Total 320   320   4,374
2025          
Total 28,641   28,641   27,348
2024          
Total 32,708   32,708   113,707
2023          
Total 52,314   52,314   141,125
2022          
Total 110,094   110,094   118,221
Prior          
Total 352,937   352,937   276,136
Revolving Loans Amortized Cost Basis          
Total 86,757   86,757   105,560
Total          
Total 669,301   669,301   790,906
Portfolio Segment and Loan Class | Real estate - commercial mortgage          
2026          
Total 639,762   639,762   897,622
Current period gross charge-offs     0   0
2025          
Total 970,628   970,628   803,695
Current period gross charge-offs     (4,462)   0
2024          
Total 878,449   878,449   1,253,429
Current period gross charge-offs     (2,570)   (1,315)
2023          
Total 1,262,534   1,262,534   1,290,785
Current period gross charge-offs     (2,507)   (20,232)
2022          
Total 1,630,376   1,630,376   1,410,953
Current period gross charge-offs     (3,658)   (7,990)
Prior          
Total 5,425,457   5,425,457   4,085,772
Current period gross charge-offs     (1,694)   (6,981)
Revolving Loans Amortized Cost Basis          
Total 107,607   107,607   78,688
Current period gross charge-offs     0   0
Total          
Total 10,914,813   10,914,813   9,820,944
Current period gross charge-offs     (14,891)   (36,518)
Portfolio Segment and Loan Class | Real estate - commercial mortgage | Pass          
2026          
Total 639,314   639,314   885,851
2025          
Total 928,088   928,088   769,334
2024          
Total 844,822   844,822   1,120,033
2023          
Total 1,175,511   1,175,511   1,127,104
2022          
Total 1,452,504   1,452,504   1,185,319
Prior          
Total 4,918,281   4,918,281   3,712,279
Revolving Loans Amortized Cost Basis          
Total 105,453   105,453   76,848
Total          
Total 10,063,973   10,063,973   8,876,768
Portfolio Segment and Loan Class | Real estate - commercial mortgage | Special Mention          
2026          
Total 448   448   9,425
2025          
Total 24,232   24,232   19,207
2024          
Total 13,366   13,366   42,649
2023          
Total 50,192   50,192   52,546
2022          
Total 94,565   94,565   116,763
Prior          
Total 225,896   225,896   171,308
Revolving Loans Amortized Cost Basis          
Total 1,533   1,533   787
Total          
Total 410,232   410,232   412,685
Portfolio Segment and Loan Class | Real estate - commercial mortgage | Substandard or Lower          
2026          
Total 0   0   2,346
2025          
Total 18,308   18,308   15,154
2024          
Total 20,261   20,261   90,747
2023          
Total 36,831   36,831   111,135
2022          
Total 83,307   83,307   108,871
Prior          
Total 281,280   281,280   202,185
Revolving Loans Amortized Cost Basis          
Total 621   621   1,053
Total          
Total 440,608   440,608   531,491
Portfolio Segment and Loan Class | Commercial and Industrial          
2026          
Total 389,904   389,904   573,137
Current period gross charge-offs     0   (75)
2025          
Total 533,153   533,153   363,063
Current period gross charge-offs     (110)   (3,317)
2024          
Total 319,155   319,155   390,796
Current period gross charge-offs     (83)   (4,822)
2023          
Total 324,188   324,188   481,017
Current period gross charge-offs     (2,034)   (4,936)
2022          
Total 454,884   454,884   218,845
Current period gross charge-offs     (600)   (2,410)
Prior          
Total 997,729   997,729   892,698
Current period gross charge-offs     (3,239)   (4,449)
Revolving Loans Amortized Cost Basis          
Total 1,534,707   1,534,707   1,604,798
Current period gross charge-offs     (16,494)   (778)
Total          
Total 4,559,732   4,559,732   4,539,060
Current period gross charge-offs     (22,560)   (20,787)
Portfolio Segment and Loan Class | Commercial and Industrial | Pass          
2026          
Total 389,029   389,029   559,804
2025          
Total 501,315   501,315   340,662
2024          
Total 297,823   297,823   351,330
2023          
Total 296,547   296,547   449,474
2022          
Total 428,364   428,364   205,593
Prior          
Total 876,339   876,339   766,308
Revolving Loans Amortized Cost Basis          
Total 1,393,474   1,393,474   1,398,989
Total          
Total 4,183,373   4,183,373   4,075,252
Portfolio Segment and Loan Class | Commercial and Industrial | Special Mention          
2026          
Total 555   555   11,490
2025          
Total 22,114   22,114   12,287
2024          
Total 11,439   11,439   18,377
2023          
Total 14,577   14,577   12,305
2022          
Total 9,043   9,043   4,354
Prior          
Total 50,400   50,400   52,719
Revolving Loans Amortized Cost Basis          
Total 55,097   55,097   101,311
Total          
Total 163,225   163,225   220,022
Portfolio Segment and Loan Class | Commercial and Industrial | Substandard or Lower          
2026          
Total 320   320   1,843
2025          
Total 9,724   9,724   10,114
2024          
Total 9,893   9,893   21,089
2023          
Total 13,064   13,064   19,238
2022          
Total 17,477   17,477   8,898
Prior          
Total 70,990   70,990   73,671
Revolving Loans Amortized Cost Basis          
Total 86,136   86,136   104,498
Total          
Total 213,134   213,134   243,786
Portfolio Segment and Loan Class | Real estate - construction(1)          
2026          
Total 50,892   50,892   100,875
Current period gross charge-offs     0   0
2025          
Total 168,488   168,488   237,241
Current period gross charge-offs     0   0
2024          
Total 195,773   195,773   190,981
Current period gross charge-offs     0   0
2023          
Total 124,912   124,912   69,431
Current period gross charge-offs     0   (5,286)
2022          
Total 20,039   20,039   27,719
Current period gross charge-offs     0   0
Prior          
Total 60,482   60,482   49,149
Current period gross charge-offs     0   (100)
Revolving Loans Amortized Cost Basis          
Total 53,590   53,590   52,159
Current period gross charge-offs     0   0
Total          
Total 682,428   682,428   727,555
Current period gross charge-offs     0   (5,386)
Portfolio Segment and Loan Class | Real estate - construction(1) | Pass          
2026          
Total 50,892   50,892   100,320
2025          
Total 168,488   168,488   236,045
2024          
Total 189,814   189,814   190,065
2023          
Total 124,234   124,234   40,427
2022          
Total 8,351   8,351   24,082
Prior          
Total 60,110   60,110   46,156
Revolving Loans Amortized Cost Basis          
Total 52,298   52,298   50,902
Total          
Total 654,987   654,987   687,997
Portfolio Segment and Loan Class | Real estate - construction(1) | Special Mention          
2026          
Total 0   0   555
2025          
Total 0   0   1,196
2024          
Total 5,959   5,959   0
2023          
Total 0   0   21,286
2022          
Total 3,992   3,992   3,381
Prior          
Total 0   0   2,750
Revolving Loans Amortized Cost Basis          
Total 1,292   1,292   1,248
Total          
Total 18,695   18,695   30,416
Portfolio Segment and Loan Class | Real estate - construction(1) | Substandard or Lower          
2026          
Total 0   0   0
2025          
Total 0   0   0
2024          
Total 0   0   916
2023          
Total 678   678   7,718
2022          
Total 7,696   7,696   256
Prior          
Total 372   372   243
Revolving Loans Amortized Cost Basis          
Total 0   0   9
Total          
Total 8,746   8,746   9,142
Payment Activity, Aging Status          
2026          
Total 808,494   808,494   1,121,161
2025          
Total 980,667   980,667   634,549
2024          
Total 575,661   575,661   740,248
2023          
Total 693,348   693,348   1,567,491
2022          
Total 1,556,433   1,556,433   1,652,944
Prior          
Total 3,652,279   3,652,279   1,918,571
Revolving Loans Amortized Cost Basis          
Total 1,130,939   1,130,939   1,044,945
Total          
Total 9,421,336   9,421,336   8,719,916
Payment Activity, Aging Status | Performing          
2026          
Total 808,485   808,485   1,120,930
2025          
Total 979,007   979,007   633,214
2024          
Total 569,229   569,229   738,003
2023          
Total 691,114   691,114   1,555,924
2022          
Total 1,541,130   1,541,130   1,647,415
Prior          
Total 3,607,220   3,607,220   1,885,604
Revolving Loans Amortized Cost Basis          
Total 1,128,729   1,128,729   1,042,448
Total          
Total 9,346,146   9,346,146   8,660,462
Payment Activity, Aging Status | Nonperforming          
2026          
Total 9   9   231
2025          
Total 1,660   1,660   1,335
2024          
Total 6,432   6,432   2,245
2023          
Total 2,234   2,234   11,567
2022          
Total 15,303   15,303   5,529
Prior          
Total 45,059   45,059   32,967
Revolving Loans Amortized Cost Basis          
Total 2,210   2,210   2,497
Total          
Total 75,190   75,190   59,454
Payment Activity, Aging Status | Leases and other loans          
2026          
Total 117,483   117,483   175,335
Current period gross charge-offs     (370)   (2,092)
2025          
Total 102,912   102,912   38,494
Current period gross charge-offs     (652)   (1,153)
2024          
Total 33,958   33,958   71,537
Current period gross charge-offs     (186)   (506)
2023          
Current period gross charge-offs     (124)   (289)
2022          
Current period gross charge-offs     (162)   (244)
Prior          
Current period gross charge-offs     (587)   (1,353)
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Current period gross charge-offs     0   0
Total          
Total 355,984   355,984   337,409
Current period gross charge-offs     (2,081)   (5,637)
Payment Activity, Aging Status | Leases and other loans | Pass          
2026          
Total 117,483   117,483   174,718
2025          
Total 102,099   102,099   35,955
2024          
Total 31,058   31,058   70,152
2023          
Total 59,835   59,835   29,832
2022          
Total 25,023   25,023   8,185
Prior          
Total 10,890   10,890   8,665
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Total          
Total 346,388   346,388   327,507
Payment Activity, Aging Status | Leases and other loans | Special Mention          
2026          
Total 0   0   432
2025          
Total 204   204   459
2024          
Total 346   346   430
2023          
Total 713   713   1,305
2022          
Total 981   981   460
Prior          
Total 539   539   329
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Total          
Total 2,783   2,783   3,415
Payment Activity, Aging Status | Leases and other loans | Substandard or Lower          
2026          
Total 0   0   185
2025          
Total 609   609   2,080
2024          
Total 2,554   2,554   955
2023          
Total 1,741   1,741   3,034
2022          
Total 1,614   1,614   196
Prior          
Total 295   295   37
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Total          
Total 6,813   6,813   6,487
Payment Activity, Aging Status | Leases and other loans | Nonperforming          
2023          
Total 62,289   62,289   34,171
2022          
Total 27,618   27,618   8,841
Prior          
Total 11,724   11,724   9,031
Payment Activity, Aging Status | Real estate - residential mortgage          
2026          
Total 434,141   434,141   724,639
Current period gross charge-offs     0   0
2025          
Total 814,555   814,555   537,313
Current period gross charge-offs     0   (19)
2024          
Total 521,529   521,529   664,581
Current period gross charge-offs     (91)   (201)
2023          
Total 631,587   631,587   1,422,637
Current period gross charge-offs     (84)   (294)
2022          
Total 1,437,379   1,437,379   1,608,815
Current period gross charge-offs     (209)   (161)
Prior          
Total 3,406,984   3,406,984   1,712,008
Current period gross charge-offs     (128)   (378)
Revolving Loans Amortized Cost Basis          
Total 4,774   4,774   0
Current period gross charge-offs     0   0
Total          
Total 7,250,949   7,250,949   6,669,993
Current period gross charge-offs     (512)   (1,053)
Payment Activity, Aging Status | Real estate - residential mortgage | Performing          
2026          
Total 434,141   434,141   724,505
2025          
Total 813,038   813,038   536,668
2024          
Total 520,259   520,259   662,479
2023          
Total 629,623   629,623   1,412,885
2022          
Total 1,424,812   1,424,812   1,603,854
Prior          
Total 3,367,480   3,367,480   1,684,033
Revolving Loans Amortized Cost Basis          
Total 4,774   4,774   0
Total          
Total 7,194,127   7,194,127   6,624,424
Payment Activity, Aging Status | Real estate - residential mortgage | Nonperforming          
2026          
Total 0   0   134
2025          
Total 1,517   1,517   645
2024          
Total 1,270   1,270   2,102
2023          
Total 1,964   1,964   9,752
2022          
Total 12,567   12,567   4,961
Prior          
Total 39,504   39,504   27,975
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Total          
Total 56,822   56,822   45,569
Payment Activity, Aging Status | Consumer and Real Estate - Home Equity          
2026          
Total 297,937   297,937   232,049
Current period gross charge-offs     (5)   (215)
2025          
Total 12,181   12,181   24,047
Current period gross charge-offs     (235)   (262)
2024          
Total 22,821   22,821   74,272
Current period gross charge-offs     (252)   (998)
2023          
Total 60,802   60,802   141,168
Current period gross charge-offs     (382)   (1,556)
2022          
Total 117,445   117,445   44,129
Current period gross charge-offs     (367)   (708)
Prior          
Total 245,295   245,295   206,563
Current period gross charge-offs     (2,712)   (4,505)
Revolving Loans Amortized Cost Basis          
Total 1,126,165   1,126,165   1,044,945
Current period gross charge-offs     (331)   (573)
Total          
Total 1,906,161   1,906,161   1,807,180
Current period gross charge-offs     (4,284)   (8,817)
Payment Activity, Aging Status | Consumer and Real Estate - Home Equity | Performing          
2026          
Total 297,928   297,928   231,952
2025          
Total 12,038   12,038   23,963
2024          
Total 22,235   22,235   74,129
2023          
Total 60,532   60,532   140,759
2022          
Total 116,115   116,115   43,561
Prior          
Total 239,740   239,740   201,571
Revolving Loans Amortized Cost Basis          
Total 1,123,955   1,123,955   1,042,448
Total          
Total 1,893,775   1,893,775   1,795,307
Payment Activity, Aging Status | Consumer and Real Estate - Home Equity | Nonperforming          
2026          
Total 9   9   97
2025          
Total 143   143   84
2024          
Total 586   586   143
2023          
Total 270   270   409
2022          
Total 1,330   1,330   568
Prior          
Total 5,555   5,555   4,992
Revolving Loans Amortized Cost Basis          
Total 2,210   2,210   2,497
Total          
Total 12,386   12,386   11,873
Payment Activity, Aging Status | Construction - other          
2026          
Total 76,416   76,416   164,473
Current period gross charge-offs     0   0
2025          
Total 153,931   153,931   73,189
Current period gross charge-offs     0   0
2024          
Total 31,311   31,311   1,395
Current period gross charge-offs     0   0
2023          
Total 959   959   3,686
Current period gross charge-offs     0   0
2022          
Total 1,609   1,609   0
Current period gross charge-offs     0   0
Prior          
Total 0   0   0
Current period gross charge-offs     0   0
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Current period gross charge-offs     0   0
Total          
Total 264,226   264,226   242,743
Current period gross charge-offs     0   0
Payment Activity, Aging Status | Construction - other | Performing          
2026          
Total 76,416   76,416   164,473
2025          
Total 153,931   153,931   72,583
2024          
Total 26,735   26,735   1,395
2023          
Total 959   959   2,280
2022          
Total 203   203   0
Prior          
Total 0   0   0
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Total          
Total 258,244   258,244   240,731
Payment Activity, Aging Status | Construction - other | Nonperforming          
2026          
Total 0   0   0
2025          
Total 0   0   606
2024          
Total 4,576   4,576   0
2023          
Total 0   0   1,406
2022          
Total 1,406   1,406   0
Prior          
Total 0   0   0
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Total          
Total 5,982   5,982   2,012
Conversion to Term Loan | Portfolio Segment and Loan Class          
Revolving Loans Amortized Cost Basis          
Total 14,264   14,264   14,706
Conversion to Term Loan | Portfolio Segment and Loan Class | Pass          
Revolving Loans Amortized Cost Basis          
Total 1,282   1,282   3,092
Conversion to Term Loan | Portfolio Segment and Loan Class | Special Mention          
Revolving Loans Amortized Cost Basis          
Total 7,452   7,452   7,179
Conversion to Term Loan | Portfolio Segment and Loan Class | Substandard or Lower          
Revolving Loans Amortized Cost Basis          
Total 5,530   5,530   4,435
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - commercial mortgage          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Current period gross charge-offs     0   0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - commercial mortgage | Pass          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - commercial mortgage | Special Mention          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - commercial mortgage | Substandard or Lower          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Portfolio Segment and Loan Class | Commercial and Industrial          
Revolving Loans Amortized Cost Basis          
Total 6,012   6,012   14,706
Current period gross charge-offs     0   0
Conversion to Term Loan | Portfolio Segment and Loan Class | Commercial and Industrial | Pass          
Revolving Loans Amortized Cost Basis          
Total 482   482   3,092
Conversion to Term Loan | Portfolio Segment and Loan Class | Commercial and Industrial | Special Mention          
Revolving Loans Amortized Cost Basis          
Total 0   0   7,179
Conversion to Term Loan | Portfolio Segment and Loan Class | Commercial and Industrial | Substandard or Lower          
Revolving Loans Amortized Cost Basis          
Total 5,530   5,530   4,435
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - construction(1)          
Revolving Loans Amortized Cost Basis          
Total 8,252   8,252   0
Current period gross charge-offs     0   0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - construction(1) | Pass          
Revolving Loans Amortized Cost Basis          
Total 800   800   0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - construction(1) | Special Mention          
Revolving Loans Amortized Cost Basis          
Total 7,452   7,452   0
Conversion to Term Loan | Portfolio Segment and Loan Class | Real estate - construction(1) | Substandard or Lower          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Payment Activity, Aging Status          
Revolving Loans Amortized Cost Basis          
Total 23,515   23,515   40,007
Conversion to Term Loan | Payment Activity, Aging Status | Performing          
Revolving Loans Amortized Cost Basis          
Total 21,232   21,232   36,924
Conversion to Term Loan | Payment Activity, Aging Status | Nonperforming          
Revolving Loans Amortized Cost Basis          
Total 2,283   2,283   3,083
Conversion to Term Loan | Payment Activity, Aging Status | Leases and other loans          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Current period gross charge-offs     0   0
Conversion to Term Loan | Payment Activity, Aging Status | Leases and other loans | Pass          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Payment Activity, Aging Status | Leases and other loans | Special Mention          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Payment Activity, Aging Status | Leases and other loans | Substandard or Lower          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Payment Activity, Aging Status | Real estate - residential mortgage          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Current period gross charge-offs     0   0
Conversion to Term Loan | Payment Activity, Aging Status | Real estate - residential mortgage | Performing          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Payment Activity, Aging Status | Real estate - residential mortgage | Nonperforming          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Payment Activity, Aging Status | Consumer and Real Estate - Home Equity          
Revolving Loans Amortized Cost Basis          
Total 23,515   23,515   40,007
Current period gross charge-offs     0   0
Conversion to Term Loan | Payment Activity, Aging Status | Consumer and Real Estate - Home Equity | Performing          
Revolving Loans Amortized Cost Basis          
Total 21,232   21,232   36,924
Conversion to Term Loan | Payment Activity, Aging Status | Consumer and Real Estate - Home Equity | Nonperforming          
Revolving Loans Amortized Cost Basis          
Total 2,283   2,283   3,083
Conversion to Term Loan | Payment Activity, Aging Status | Construction - other          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Current period gross charge-offs     0   0
Conversion to Term Loan | Payment Activity, Aging Status | Construction - other | Performing          
Revolving Loans Amortized Cost Basis          
Total 0   0   0
Conversion to Term Loan | Payment Activity, Aging Status | Construction - other | Nonperforming          
Revolving Loans Amortized Cost Basis          
Total $ 0   $ 0   $ 0