v3.26.3
Loans Receivable - Credit Quality Indicators (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Credit quality indicators          
Year one $ 2,446,486   $ 2,446,486   $ 2,357,715
Year two 2,004,182   2,004,182   1,481,855
Year three 1,127,306   1,127,306   1,266,021
Year four 985,839   985,839   1,722,334
Year five 1,354,233   1,354,233   1,367,011
Prior 3,789,314   3,789,314   3,146,924
Revolving loans 1,613,000   1,613,000   1,588,397
Revolving loans converted to term loans 72,936   72,936   77,059
Total loans receivable, gross 13,393,296   13,393,296   13,007,316
Total loans receivable, charge-offs (7,618) $ (11,174) (21,653) $ (24,434)  
Revolving loans converted to term loans during the period     19,000   16,000
Personal Banking          
Credit quality indicators          
Year one 1,349,336   1,349,336   1,357,050
Year two 1,057,972   1,057,972   563,522
Year three 402,283   402,283   610,030
Year four 457,154   457,154   966,938
Year five 789,429   789,429   896,029
Prior 2,383,884   2,383,884   1,808,075
Revolving loans 898,534   898,534   911,886
Revolving loans converted to term loans 60,254   60,254   58,672
Total loans receivable, gross 7,398,846   7,398,846   7,172,202
Total loans receivable, charge-offs (4,359) (4,467) (15,151) (13,150)  
Personal Banking | Residential mortgage loans          
Credit quality indicators          
Year one 132,857   132,857   65,511
Year two 61,740   61,740   41,435
Year three 36,594   36,594   217,329
Year four 193,557   193,557   609,740
Year five 565,080   565,080   711,882
Prior 1,994,376   1,994,376   1,454,883
Revolving loans 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans receivable, gross 2,984,204   2,984,204   3,100,780
Year one, charge-offs     0   0
Year two, charge-offs     0   0
Year three, charge-offs     0   (51)
Year four, charge-offs     (123)   (447)
Year five, charge-offs     (438)   (55)
Prior, charge-offs     (1,522)   (623)
Revolving loans, charge-offs     0   (50)
Revolving loans converted to term loans, charge-offs     0   0
Total loans receivable, charge-offs (617) (137) (2,083) (998) (1,226)
Personal Banking | Residential mortgage loans | Pass          
Credit quality indicators          
Year one 132,857   132,857   65,511
Year two 61,372   61,372   41,435
Year three 36,594   36,594   216,600
Year four 192,913   192,913   607,377
Year five 562,061   562,061   709,122
Prior 1,985,900   1,985,900   1,448,488
Revolving loans 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans receivable, gross 2,971,697   2,971,697   3,088,533
Personal Banking | Residential mortgage loans | Substandard          
Credit quality indicators          
Year one 0   0   0
Year two 368   368   0
Year three 0   0   729
Year four 644   644   2,363
Year five 3,019   3,019   2,760
Prior 8,476   8,476   6,395
Revolving loans 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans receivable, gross 12,507   12,507   12,247
Personal Banking | Home equity loans          
Credit quality indicators          
Year one 97,534   97,534   99,444
Year two 82,540   82,540   26,377
Year three 22,351   22,351   47,348
Year four 39,080   39,080   71,341
Year five 61,474   61,474   71,038
Prior 305,837   305,837   291,561
Revolving loans 827,998   827,998   842,320
Revolving loans converted to term loans 59,745   59,745   58,103
Total loans receivable, gross 1,496,559   1,496,559   1,507,532
Year one, charge-offs     0   0
Year two, charge-offs     0   (85)
Year three, charge-offs     0   (13)
Year four, charge-offs     (14)   (219)
Year five, charge-offs     (49)   (98)
Prior, charge-offs     (192)   (399)
Revolving loans, charge-offs     (471)   (545)
Revolving loans converted to term loans, charge-offs     (147)   (221)
Total loans receivable, charge-offs (199) (336) (873) (1,022) (1,580)
Personal Banking | Home equity loans | Pass          
Credit quality indicators          
Year one 97,534   97,534   99,444
Year two 82,540   82,540   26,377
Year three 22,268   22,268   47,301
Year four 39,080   39,080   71,086
Year five 61,180   61,180   71,038
Prior 304,773   304,773   290,393
Revolving loans 823,946   823,946   840,879
Revolving loans converted to term loans 58,992   58,992   57,259
Total loans receivable, gross 1,490,313   1,490,313   1,503,777
Personal Banking | Home equity loans | Substandard          
Credit quality indicators          
Year one 0   0   0
Year two 0   0   0
Year three 83   83   47
Year four 0   0   255
Year five 294   294   0
Prior 1,064   1,064   1,168
Revolving loans 4,052   4,052   1,441
Revolving loans converted to term loans 753   753   844
Total loans receivable, gross 6,246   6,246   3,755
Personal Banking | Vehicle loans          
Credit quality indicators          
Year one 1,090,503   1,090,503   1,157,683
Year two 893,914   893,914   478,604
Year three 332,675   332,675   337,077
Year four 219,777   219,777   282,732
Year five 161,614   161,614   112,037
Prior 80,795   80,795   58,503
Revolving loans 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans receivable, gross 2,779,278   2,779,278   2,426,636
Year one, charge-offs     (96)   (527)
Year two, charge-offs     (1,985)   (1,663)
Year three, charge-offs     (1,674)   (2,159)
Year four, charge-offs     (1,593)   (2,129)
Year five, charge-offs     (1,127)   (1,205)
Prior, charge-offs     (989)   (1,145)
Revolving loans, charge-offs     0   0
Revolving loans converted to term loans, charge-offs     0   0
Total loans receivable, charge-offs (2,108) (2,115) (7,464) (6,566) (8,828)
Personal Banking | Vehicle loans | Pass          
Credit quality indicators          
Year one 1,090,371   1,090,371   1,157,146
Year two 892,504   892,504   477,435
Year three 332,086   332,086   335,622
Year four 218,580   218,580   281,604
Year five 160,867   160,867   111,302
Prior 79,957   79,957   58,034
Revolving loans 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans receivable, gross 2,774,365   2,774,365   2,421,143
Personal Banking | Vehicle loans | Substandard          
Credit quality indicators          
Year one 132   132   537
Year two 1,410   1,410   1,169
Year three 589   589   1,455
Year four 1,197   1,197   1,128
Year five 747   747   735
Prior 838   838   469
Revolving loans 0   0   0
Revolving loans converted to term loans 0   0   0
Total loans receivable, gross 4,913   4,913   5,493
Personal Banking | Consumer loans          
Credit quality indicators          
Year one 28,442   28,442   34,412
Year two 19,778   19,778   17,106
Year three 10,663   10,663   8,276
Year four 4,740   4,740   3,125
Year five 1,261   1,261   1,072
Prior 2,876   2,876   3,128
Revolving loans 70,536   70,536   69,566
Revolving loans converted to term loans 509   509   569
Total loans receivable, gross 138,805   138,805   137,254
Year one, charge-offs     (1,399)   (2,488)
Year two, charge-offs     (803)   (872)
Year three, charge-offs     (702)   (805)
Year four, charge-offs     (501)   (500)
Year five, charge-offs     (231)   (313)
Prior, charge-offs     (1,059)   (1,206)
Revolving loans, charge-offs     (25)   (166)
Revolving loans converted to term loans, charge-offs     (11)   (91)
Total loans receivable, charge-offs (1,435) (1,879) (4,731) (4,564) (6,441)
Personal Banking | Consumer loans | Pass          
Credit quality indicators          
Year one 28,441   28,441   34,396
Year two 19,755   19,755   17,034
Year three 10,627   10,627   8,244
Year four 4,712   4,712   3,117
Year five 1,259   1,259   1,063
Prior 2,874   2,874   3,128
Revolving loans 70,055   70,055   68,963
Revolving loans converted to term loans 432   432   489
Total loans receivable, gross 138,155   138,155   136,434
Personal Banking | Consumer loans | Substandard          
Credit quality indicators          
Year one 1   1   16
Year two 23   23   72
Year three 36   36   32
Year four 28   28   8
Year five 2   2   9
Prior 2   2   0
Revolving loans 481   481   603
Revolving loans converted to term loans 77   77   80
Total loans receivable, gross 650   650   820
Commercial Banking          
Credit quality indicators          
Year one 1,097,150   1,097,150   1,000,665
Year two 946,210   946,210   918,333
Year three 725,023   725,023   655,991
Year four 528,685   528,685   755,396
Year five 564,804   564,804   470,982
Prior 1,405,430   1,405,430   1,338,849
Revolving loans 714,466   714,466   676,511
Revolving loans converted to term loans 12,682   12,682   18,387
Total loans receivable, gross 5,994,450   5,994,450   5,835,114
Total loans receivable, charge-offs (3,259) (6,707) (6,502) (11,284)  
Commercial Banking | Commercial real estate loans          
Credit quality indicators          
Year one 222,217   222,217   195,500
Year two 203,434   203,434   315,502
Year three 266,424   266,424   350,975
Year four 290,254   290,254   516,411
Year five 392,238   392,238   371,509
Prior 1,144,487   1,144,487   1,113,066
Revolving loans 31,335   31,335   39,714
Revolving loans converted to term loans 8,962   8,962   13,019
Total loans receivable, gross 2,559,351   2,559,351   2,915,696
Year one, charge-offs     0   0
Year two, charge-offs     0   (3)
Year three, charge-offs     0   (73)
Year four, charge-offs     (61)   (2,009)
Year five, charge-offs     (823)   (30)
Prior, charge-offs     (1,652)   (11,847)
Revolving loans, charge-offs     0   (15)
Revolving loans converted to term loans, charge-offs     0   (173)
Total loans receivable, charge-offs (1,393) (3,976) (2,536) (4,385) (14,150)
Commercial Banking | Commercial real estate loans | Pass          
Credit quality indicators          
Year one 218,485   218,485   192,876
Year two 182,018   182,018   280,328
Year three 217,478   217,478   304,567
Year four 222,227   222,227   406,936
Year five 299,143   299,143   275,080
Prior 931,938   931,938   973,846
Revolving loans 28,359   28,359   37,133
Revolving loans converted to term loans 8,165   8,165   11,234
Total loans receivable, gross 2,107,813   2,107,813   2,482,000
Commercial Banking | Commercial real estate loans | Special mention          
Credit quality indicators          
Year one 0   0   1,738
Year two 15,584   15,584   5,933
Year three 31,034   31,034   23,540
Year four 32,386   32,386   28,030
Year five 13,553   13,553   41,409
Prior 40,774   40,774   27,177
Revolving loans 598   598   639
Revolving loans converted to term loans 0   0   0
Total loans receivable, gross 133,929   133,929   128,466
Commercial Banking | Commercial real estate loans | Substandard          
Credit quality indicators          
Year one 3,732   3,732   886
Year two 5,832   5,832   29,241
Year three 17,912   17,912   22,868
Year four 35,641   35,641   81,445
Year five 79,542   79,542   55,020
Prior 171,775   171,775   112,043
Revolving loans 2,378   2,378   1,942
Revolving loans converted to term loans 797   797   1,785
Total loans receivable, gross 317,609   317,609   305,230
Commercial Banking | Commercial real estate loans - owner occupied          
Credit quality indicators          
Year one 25,718   25,718   59,948
Year two 64,536   64,536   37,908
Year three 37,656   37,656   30,102
Year four 30,764   30,764   21,412
Year five 22,758   22,758   58,792
Prior 182,596   182,596   164,375
Revolving loans 7,513   7,513   7,727
Revolving loans converted to term loans 709   709   942
Total loans receivable, gross 372,250   372,250   381,206
Year one, charge-offs     0   0
Year two, charge-offs     0   0
Year three, charge-offs     0   0
Year four, charge-offs     0   0
Year five, charge-offs     0   0
Prior, charge-offs     (301)   (336)
Revolving loans, charge-offs     0   0
Revolving loans converted to term loans, charge-offs     0   0
Total loans receivable, charge-offs (301) (336) (301) (336) (336)
Commercial Banking | Commercial real estate loans - owner occupied | Pass          
Credit quality indicators          
Year one 22,823   22,823   59,948
Year two 57,834   57,834   34,150
Year three 29,751   29,751   28,382
Year four 27,962   27,962   17,798
Year five 17,240   17,240   54,818
Prior 173,502   173,502   134,942
Revolving loans 1,473   1,473   5,764
Revolving loans converted to term loans 0   0   0
Total loans receivable, gross 330,585   330,585   335,802
Commercial Banking | Commercial real estate loans - owner occupied | Special mention          
Credit quality indicators          
Year one 0   0   0
Year two 6,702   6,702   0
Year three 1,390   1,390   0
Year four 1,664   1,664   0
Year five 957   957   615
Prior 3,102   3,102   2,508
Revolving loans 819   819   0
Revolving loans converted to term loans 0   0   0
Total loans receivable, gross 14,634   14,634   3,123
Commercial Banking | Commercial real estate loans - owner occupied | Substandard          
Credit quality indicators          
Year one 2,895   2,895   0
Year two 0   0   3,758
Year three 6,515   6,515   1,720
Year four 1,138   1,138   3,614
Year five 4,561   4,561   3,359
Prior 5,992   5,992   26,925
Revolving loans 5,221   5,221   1,963
Revolving loans converted to term loans 709   709   942
Total loans receivable, gross 27,031   27,031   42,281
Commercial Banking | Commercial and industrial loans          
Credit quality indicators          
Year one 849,215   849,215   745,217
Year two 678,240   678,240   564,923
Year three 420,943   420,943   274,914
Year four 207,667   207,667   217,573
Year five 149,808   149,808   40,681
Prior 78,347   78,347   61,408
Revolving loans 675,618   675,618   629,070
Revolving loans converted to term loans 3,011   3,011   4,426
Total loans receivable, gross 3,062,849   3,062,849   2,538,212
Year one, charge-offs     0   0
Year two, charge-offs     (116)   (128)
Year three, charge-offs     (645)   (489)
Year four, charge-offs     (900)   (2,986)
Year five, charge-offs     (786)   (230)
Prior, charge-offs     (485)   (1,493)
Revolving loans, charge-offs     (664)   (310)
Revolving loans converted to term loans, charge-offs     (69)   (1,459)
Total loans receivable, charge-offs (1,565) $ (2,395) (3,665) $ (6,563) (7,095)
Commercial Banking | Commercial and industrial loans | Pass          
Credit quality indicators          
Year one 845,117   845,117   741,190
Year two 660,290   660,290   531,151
Year three 381,732   381,732   246,591
Year four 191,773   191,773   210,899
Year five 141,636   141,636   35,114
Prior 71,919   71,919   55,116
Revolving loans 621,179   621,179   569,922
Revolving loans converted to term loans 1,420   1,420   2,847
Total loans receivable, gross 2,915,066   2,915,066   2,392,830
Commercial Banking | Commercial and industrial loans | Special mention          
Credit quality indicators          
Year one 0   0   187
Year two 4,412   4,412   21,007
Year three 14,381   14,381   7,883
Year four 7,889   7,889   976
Year five 1,857   1,857   426
Prior 75   75   107
Revolving loans 19,155   19,155   31,262
Revolving loans converted to term loans 2   2   4
Total loans receivable, gross 47,771   47,771   61,852
Commercial Banking | Commercial and industrial loans | Substandard          
Credit quality indicators          
Year one 4,098   4,098   3,840
Year two 13,538   13,538   12,765
Year three 23,742   23,742   20,440
Year four 8,005   8,005   5,698
Year five 6,315   6,315   5,141
Prior 6,353   6,353   6,185
Revolving loans 35,034   35,034   27,886
Revolving loans converted to term loans 1,589   1,589   1,575
Total loans receivable, gross 98,674   98,674   $ 83,530
Commercial Banking | Commercial and industrial loans | Doubtful          
Credit quality indicators          
Year one      
Year two 0   0    
Year three 1,088   1,088    
Year four 0   0    
Year five 0   0    
Prior 0   0    
Revolving loans 250   250    
Revolving loans converted to term loans 0   0    
Total loans receivable, gross 1,338   1,338    
Minimum | Special mention and substandard          
Credit quality indicators          
Total loans receivable, gross $ 1,000   $ 1,000