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Bank segment - Credit Risk Profile - Payment Activity and Assigned Grades (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Credit risk profile by internally assigned grade for loans |  |
Current year | $ 297,618 | $ 638,750
One year before current year | 586,133 | 1,212,344
Two years before current year | 1,126,694 | 1,081,072
Three years before current year | 996,563 | 747,623
Four years before current year | 689,957 | 234,179
Prior | 1,197,336 | 1,081,789
Revolving | 1,092,901 | 1,145,385
Converted to term loans | 77,646 | 69,436
Total | 6,064,848 | 6,210,578
30-59 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 6,559 | 8,712
60-89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 3,606 | 8,148
Greater than 89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 18,262 | 23,073
Real estate | Residential 1-4 family |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 131,347 | 263,605
One year before current year | 253,155 | 411,257
Two years before current year | 398,582 | 732,821
Three years before current year | 707,065 | 401,163
Four years before current year | 385,472 | 104,976
Prior | 732,660 | 681,340
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 2,608,281 | 2,595,162
Real estate | Residential 1-4 family | Current |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 131,347 | 263,605
One year before current year | 253,155 | 407,304
Two years before current year | 397,855 | 729,256
Three years before current year | 706,189 | 399,766
Four years before current year | 385,208 | 104,487
Prior | 726,220 | 672,408
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 2,599,974 | 2,576,826
Real estate | Residential 1-4 family | 30-59 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 708
Two years before current year | 0 | 0
Three years before current year | 333 | 268
Four years before current year | 264 | 0
Prior | 1,541 | 3,525
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 2,138 | 4,501
Real estate | Residential 1-4 family | 60-89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 726
Two years before current year | 0 | 2,694
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 891 | 1,745
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 891 | 5,165
Real estate | Residential 1-4 family | Greater than 89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 2,519
Two years before current year | 727 | 871
Three years before current year | 543 | 1,129
Four years before current year | 0 | 489
Prior | 4,008 | 3,662
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 5,278 | 8,670
Real estate | Home equity line of credit |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 891,183 | 957,388
Converted to term loans | 68,424 | 59,819
Total | 959,607 | 1,017,207
Real estate | Home equity line of credit | Current |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 888,858 | 954,461
Converted to term loans | 67,452 | 59,146
Total | 956,310 | 1,013,607
Real estate | Home equity line of credit | 30-59 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 969 | 1,219
Converted to term loans | 419 | 262
Total | 1,388 | 1,481
Real estate | Home equity line of credit | 60-89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 624 | 597
Converted to term loans | 449 | 0
Total | 1,073 | 597
Real estate | Home equity line of credit | Greater than 89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 732 | 1,111
Converted to term loans | 104 | 411
Total | 836 | 1,522
Real estate | Residential land |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 5,889 | 3,788
One year before current year | 3,689 | 4,772
Two years before current year | 4,513 | 7,234
Three years before current year | 3,473 | 1,847
Four years before current year | 1,729 | 0
Prior | 607 | 723
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 19,900 | 18,364
Real estate | Residential land | Current |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 5,889 | 3,788
One year before current year | 3,689 | 4,097
Two years before current year | 4,513 | 7,234
Three years before current year | 3,473 | 1,847
Four years before current year | 1,729 | 0
Prior | 607 | 723
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 19,900 | 17,689
Real estate | Residential land | 30-59 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 0 | 0
Real estate | Residential land | 60-89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 675
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 0 | 675
Real estate | Residential land | Greater than 89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 0 | 0
Real estate | Residential construction |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 831 | 5,369
One year before current year | 9,640 | 10,984
Two years before current year | 6,527 | 1,490
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 16,998 | 17,843
Real estate | Residential construction | Current |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 831 | 5,369
One year before current year | 9,640 | 10,984
Two years before current year | 6,527 | 1,490
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 16,998 | 17,843
Real estate | Residential construction | 30-59 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 0 | 0
Real estate | Residential construction | 60-89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 0 | 0
Real estate | Residential construction | Greater than 89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 0 | 0
Real estate | Commercial real estate |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 35,630 | 104,368
One year before current year | 104,725 | 386,119
Two years before current year | 377,295 | 193,683
Three years before current year | 191,509 | 267,458
Four years before current year | 256,108 | 90,783
Prior | 385,465 | 316,145
Revolving | 15,482 | 15,482
Converted to term loans | 0 | 0
Total | 1,366,214 | 1,374,038
Real estate | Commercial real estate | Pass |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 35,630 | 104,368
One year before current year | 104,725 | 384,144
Two years before current year | 376,087 | 180,986
Three years before current year | 188,549 | 267,458
Four years before current year | 256,108 | 65,625
Prior | 368,171 | 307,367
Revolving | 15,482 | 15,482
Converted to term loans | 0 | 0
Total | 1,344,752 | 1,325,430
Real estate | Commercial real estate | Special Mention |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 1,975
Two years before current year | 1,208 | 11,159
Three years before current year | 1,455 | 0
Four years before current year | 0 | 14,110
Prior | 1,106 | 3,008
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 3,769 | 30,252
Real estate | Commercial real estate | Substandard |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 1,538
Three years before current year | 1,505 | 0
Four years before current year | 0 | 11,048
Prior | 13,990 | 5,770
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 15,495 | 18,356
Real estate | Commercial real estate | Doubtful |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 2,198 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 2,198 | 0
Real estate | Commercial real estate | 30-59 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 0 | 0
Real estate | Commercial real estate | 60-89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 0 | 0
Real estate | Commercial real estate | Greater than 89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 10,698 | 11,048
Real estate | Commercial construction |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 45,863
One year before current year | 68,962 | 33,240
Two years before current year | 41,201 | 26,133
Three years before current year | 17,685 | 1,333
Four years before current year | 1,333 | 0
Prior | 0 | 0
Revolving | 79,686 | 65,836
Converted to term loans | 0 | 0
Total | 208,867 | 172,405
Real estate | Commercial construction | Pass |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 45,863
One year before current year | 68,962 | 33,240
Two years before current year | 41,201 | 26,133
Three years before current year | 17,685 | 1,333
Four years before current year | 1,333 | 0
Prior | 0 | 0
Revolving | 79,686 | 65,836
Converted to term loans | 0 | 0
Total | 208,867 | 172,405
Real estate | Commercial construction | Special Mention |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 0 | 0
Real estate | Commercial construction | Substandard |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 0 | 0
Real estate | Commercial construction | Doubtful |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 0 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 0 | 0
Real estate | Commercial construction | 30-59 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 0 | 0
Real estate | Commercial construction | 60-89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 0 | 0
Real estate | Commercial construction | Greater than 89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 0 | 0
Consumer |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 32,334 | 89,230
One year before current year | 65,169 | 156,225
Two years before current year | 123,762 | 10,243
Three years before current year | 5,263 | 1,748
Four years before current year | 666 | 530
Prior | 280 | 200
Revolving | 9,839 | 10,846
Converted to term loans | 2,097 | 3,234
Total | 239,410 | 272,256
Consumer | Current |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 31,632 | 87,686
One year before current year | 63,848 | 153,239
Two years before current year | 120,783 | 9,852
Three years before current year | 5,061 | 1,654
Four years before current year | 648 | 451
Prior | 280 | 200
Revolving | 9,635 | 10,663
Converted to term loans | 1,790 | 2,779
Total | 233,677 | 266,524
Consumer | 30-59 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 503 | 805
One year before current year | 566 | 1,314
Two years before current year | 1,387 | 176
Three years before current year | 101 | 29
Four years before current year | 4 | 24
Prior | 0 | 0
Revolving | 67 | 56
Converted to term loans | 96 | 163
Total | 2,724 | 2,567
Consumer | 60-89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 111 | 385
One year before current year | 402 | 886
Two years before current year | 990 | 114
Three years before current year | 61 | 41
Four years before current year | 8 | 21
Prior | 0 | 0
Revolving | 21 | 60
Converted to term loans | 40 | 69
Total | 1,633 | 1,576
Consumer | Greater than 89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 88 | 354
One year before current year | 353 | 786
Two years before current year | 602 | 101
Three years before current year | 40 | 24
Four years before current year | 6 | 34
Prior | 0 | 0
Revolving | 116 | 67
Converted to term loans | 171 | 223
Total | 1,376 | 1,589
Commercial |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 91,587 | 126,527
One year before current year | 80,793 | 209,747
Two years before current year | 174,814 | 109,468
Three years before current year | 71,568 | 74,074
Four years before current year | 44,649 | 37,890
Prior | 78,324 | 83,381
Revolving | 96,711 | 95,833
Converted to term loans | 7,125 | 6,383
Total | 645,571 | 743,303
Commercial | Pass |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 90,529 | 124,667
One year before current year | 80,793 | 199,796
Two years before current year | 171,002 | 106,669
Three years before current year | 71,410 | 73,976
Four years before current year | 44,575 | 37,580
Prior | 75,689 | 80,012
Revolving | 95,912 | 87,206
Converted to term loans | 7,074 | 6,250
Total | 636,984 | 716,156
Commercial | Special Mention |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 1,860
One year before current year | 0 | 6,989
Two years before current year | 0 | 951
Three years before current year | 0 | 0
Four years before current year | 0 | 250
Prior | 0 | 0
Revolving | 0 | 7,352
Converted to term loans | 0 | 0
Total | 0 | 17,402
Commercial | Substandard |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 1,058 | 0
One year before current year | 0 | 2,962
Two years before current year | 3,812 | 1,848
Three years before current year | 158 | 98
Four years before current year | 0 | 60
Prior | 2,635 | 3,369
Revolving | 799 | 1,275
Converted to term loans | 51 | 133
Total | 8,513 | 9,745
Commercial | Doubtful |  |
Credit risk profile by internally assigned grade for loans |  |
Current year | 0 | 0
One year before current year | 0 | 0
Two years before current year | 0 | 0
Three years before current year | 0 | 0
Four years before current year | 74 | 0
Prior | 0 | 0
Revolving | 0 | 0
Converted to term loans | 0 | 0
Total | 74 | 0
Commercial | 30-59 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 309 | 163
Commercial | 60-89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | 9 | 135
Commercial | Greater than 89 days past due |  |
Credit risk profile by internally assigned grade for loans |  |
Total | $ 74 | $ 244

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