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Loans and Allowance for Credit Losses - Risk category of loans by class of loans (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | $ 1,906,535 | $ 1,457,032
Four years before current period | 778,256 | 806,647
Three years before current period | 763,347 | 1,009,864
Two years before current period | 673,719 | 933,401
One year before current period | 1,195,299 | 749,261
Current period | 1,139,872 | 1,071,249
Revolving Loans Amort. Cost Basis | 1,154,332 | 1,026,653
Revolving Loans Convert. to Term | 24,272 | 11,491
Loans | 7,635,632 | 7,065,598
Commercial |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 184,661 | 190,978
Four years before current period | 47,744 | 75,553
Three years before current period | 56,537 | 106,291
Two years before current period | 64,163 | 92,307
One year before current period | 237,146 | 91,783
Current period | 144,472 | 214,700
Revolving Loans Amort. Cost Basis | 742,909 | 576,055
Revolving Loans Convert. to Term | 9,717 | 6,650
Loans | 1,487,349 | 1,354,317
Commercial | Pass |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 177,307 | 180,877
Four years before current period | 45,510 | 58,693
Three years before current period | 56,011 | 103,058
Two years before current period | 60,010 | 90,874
One year before current period | 234,258 | 87,515
Current period | 143,636 | 211,563
Revolving Loans Amort. Cost Basis | 708,201 | 549,055
Revolving Loans Convert. to Term | 8,570 | 6,023
Loans | 1,433,503 | 1,287,658
Commercial | Watch |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 6,022 | 5,896
Four years before current period | 1,883 | 6,567
Three years before current period | 250 | 1,020
Two years before current period | 4,153 | 996
One year before current period | 2,888 | 4,268
Current period | 754 | 3,137
Revolving Loans Amort. Cost Basis | 27,889 | 18,336
Revolving Loans Convert. to Term | 0 | 627
Loans | 43,839 | 40,847
Commercial | Special Mention |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 0 | 0
Four years before current period | 0 | 9,515
Three years before current period | 0 | 363
Two years before current period | 0 | 0
One year before current period | 0 | 0
Current period | 82 | 0
Revolving Loans Amort. Cost Basis | 5,475 | 901
Revolving Loans Convert. to Term | 0 | 0
Loans | 5,557 | 10,779
Commercial | Substandard |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 1,332 | 4,205
Four years before current period | 351 | 778
Three years before current period | 276 | 1,850
Two years before current period | 0 | 437
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 1,344 | 7,763
Revolving Loans Convert. to Term | 1,147 | 0
Loans | 4,450 | 15,033
PPP loans |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 0 | 0
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 2,479 | 0
One year before current period | 777 | 18,205
Current period | 0 | 32,900
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 3,256 | 51,105
PPP loans | Pass |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 0 | 0
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 2,479 | 0
One year before current period | 777 | 16,840
Current period | 0 | 32,900
Revolving Loans Amort. Cost Basis |  | 0
Revolving Loans Convert. to Term |  | 0
Loans | 3,256 | 49,740
PPP loans | Special Mention |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior |  | 0
Four years before current period |  | 0
Three years before current period |  | 0
Two years before current period |  | 0
One year before current period |  | 1,365
Current period |  | 0
Revolving Loans Amort. Cost Basis |  | 0
Revolving Loans Convert. to Term |  | 0
Loans |  | 1,365
Income producing - commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 1,121,337 | 792,523
Four years before current period | 446,427 | 407,154
Three years before current period | 484,683 | 468,916
Two years before current period | 340,900 | 549,175
One year before current period | 542,143 | 372,272
Current period | 744,328 | 549,356
Revolving Loans Amort. Cost Basis | 239,765 | 245,902
Revolving Loans Convert. to Term | 358 | 0
Loans | 3,919,941 | 3,385,298
Income producing - commercial real estate | Pass |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 778,683 | 572,550
Four years before current period | 434,031 | 333,394
Three years before current period | 480,474 | 418,489
Two years before current period | 298,458 | 495,808
One year before current period | 542,143 | 337,178
Current period | 744,328 | 549,356
Revolving Loans Amort. Cost Basis | 192,089 | 198,210
Revolving Loans Convert. to Term | 358 | 0
Loans | 3,470,564 | 2,904,985
Income producing - commercial real estate | Watch |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 237,846 | 58,334
Four years before current period | 5,190 | 73,760
Three years before current period | 0 | 0
Two years before current period | 35,707 | 43,561
One year before current period | 0 | 35,094
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 278,743 | 210,749
Income producing - commercial real estate | Special Mention |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 44,195 | 101,580
Four years before current period | 5,206 | 0
Three years before current period | 4,209 | 41,936
Two years before current period | 6,735 | 4,264
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 47,676 | 47,692
Revolving Loans Convert. to Term | 0 | 0
Loans | 108,021 | 195,472
Income producing - commercial real estate | Substandard |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 60,613 | 60,059
Four years before current period | 2,000 | 0
Three years before current period | 0 | 8,491
Two years before current period | 0 | 5,542
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 62,613 | 74,092
Owner occupied - commercial real estate |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 480,782 | 398,139
Four years before current period | 191,646 | 132,268
Three years before current period | 111,497 | 222,131
Two years before current period | 40,562 | 90,752
One year before current period | 206,595 | 41,135
Current period | 41,765 | 184,529
Revolving Loans Amort. Cost Basis | 24,240 | 16,900
Revolving Loans Convert. to Term | 13,238 | 1,922
Loans | 1,110,325 | 1,087,776
Owner occupied - commercial real estate | Pass |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 444,153 | 353,471
Four years before current period | 180,142 | 127,687
Three years before current period | 106,902 | 210,348
Two years before current period | 40,562 | 81,604
One year before current period | 206,595 | 41,135
Current period | 41,765 | 184,529
Revolving Loans Amort. Cost Basis | 24,181 | 16,838
Revolving Loans Convert. to Term | 13,238 | 1,922
Loans | 1,057,538 | 1,017,534
Owner occupied - commercial real estate | Watch |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 16,876 | 22,710
Four years before current period | 11,504 | 4,581
Three years before current period | 4,595 | 11,783
Two years before current period | 0 | 7,026
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 59 | 62
Revolving Loans Convert. to Term | 0 | 0
Loans | 33,034 | 46,162
Owner occupied - commercial real estate | Special Mention |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior |  | 0
Four years before current period |  | 0
Three years before current period |  | 0
Two years before current period |  | 2,122
One year before current period |  | 0
Current period |  | 0
Revolving Loans Amort. Cost Basis |  | 0
Revolving Loans Convert. to Term |  | 0
Loans |  | 2,122
Owner occupied - commercial real estate | Substandard |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 19,753 | 21,958
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 0 | 0
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 19,753 | 21,958
Real estate mortgage - residential |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 18,666 | 19,598
Four years before current period | 12,438 | 5,854
Three years before current period | 8,219 | 12,956
Two years before current period | 2,640 | 15,627
One year before current period | 16,307 | 3,436
Current period | 14,731 | 16,495
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 73,001 | 73,966
Real estate mortgage - residential | Pass |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 13,930 | 14,645
Four years before current period | 12,438 | 5,854
Three years before current period | 8,219 | 12,956
Two years before current period | 2,640 | 15,546
One year before current period | 16,307 | 3,436
Current period | 14,731 | 16,495
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 68,265 | 68,932
Real estate mortgage - residential | Watch |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 3,038 | 3,255
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 0 | 0
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 3,038 | 3,255
Real estate mortgage - residential | Substandard |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 1,698 | 1,698
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 0 | 81
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 1,698 | 1,779
Construction - commercial and residential |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 84,522 | 33,321
Four years before current period | 71,841 | 183,674
Three years before current period | 90,560 | 171,152
Two years before current period | 189,023 | 145,692
One year before current period | 191,127 | 160,952
Current period | 159,771 | 71,799
Revolving Loans Amort. Cost Basis | 90,911 | 127,956
Revolving Loans Convert. to Term | 0 | 1,773
Loans | 877,755 | 896,319
Construction - commercial and residential | Pass |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 40,113 | 32,815
Four years before current period | 18,669 | 139,756
Three years before current period | 90,560 | 171,152
Two years before current period | 189,023 | 142,599
One year before current period | 191,127 | 160,952
Current period | 159,771 | 71,799
Revolving Loans Amort. Cost Basis | 90,911 | 127,956
Revolving Loans Convert. to Term | 0 | 1,773
Loans | 780,174 | 848,802
Construction - commercial and residential | Watch |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 44,409 | 506
Four years before current period | 53,172 | 43,918
Three years before current period | 0 | 0
Two years before current period | 0 | 0
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 97,581 | 44,424
Construction - commercial and residential | Substandard |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior |  | 0
Four years before current period |  | 0
Three years before current period |  | 0
Two years before current period |  | 3,093
One year before current period |  | 0
Current period |  | 0
Revolving Loans Amort. Cost Basis |  | 0
Revolving Loans Convert. to Term |  | 0
Loans |  | 3,093
Construction - C&I (owner occupied) |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 14,816 | 20,390
Four years before current period | 8,160 | 2,144
Three years before current period | 11,810 | 28,418
Two years before current period | 33,854 | 39,803
One year before current period | 653 | 61,408
Current period | 34,679 | 768
Revolving Loans Amort. Cost Basis | 6,507 | 6,648
Revolving Loans Convert. to Term | 0 | 0
Loans | 110,479 | 159,579
Construction - C&I (owner occupied) | Pass |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 13,792 | 19,710
Four years before current period | 4,906 | 1,754
Three years before current period | 4,367 | 25,163
Two years before current period | 33,854 | 39,803
One year before current period | 653 | 61,408
Current period | 34,679 | 768
Revolving Loans Amort. Cost Basis | 6,507 | 6,648
Revolving Loans Convert. to Term | 0 | 0
Loans | 98,758 | 155,254
Construction - C&I (owner occupied) | Watch |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 1,024 | 680
Four years before current period | 3,254 | 390
Three years before current period | 7,443 | 3,255
Two years before current period | 0 | 0
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 0 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 11,721 | 4,325
Home equity |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 1,747 | 1,713
Four years before current period | 0 | 0
Three years before current period | 41 | 0
Two years before current period | 98 | 45
One year before current period | 551 | 70
Current period | 0 | 702
Revolving Loans Amort. Cost Basis | 48,439 | 52,135
Revolving Loans Convert. to Term | 906 | 1,146
Loans | 51,782 | 55,811
Home equity | Pass |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 1,695 | 1,474
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 98 | 0
One year before current period | 551 | 70
Current period | 0 | 702
Revolving Loans Amort. Cost Basis | 48,182 | 52,077
Revolving Loans Convert. to Term | 906 | 883
Loans | 51,432 | 55,206
Home equity | Watch |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 52 | 193
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 0 | 0
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 196 | 0
Revolving Loans Convert. to Term | 0 | 0
Loans | 248 | 193
Home equity | Substandard |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 0 | 46
Four years before current period | 0 | 0
Three years before current period | 41 | 0
Two years before current period | 0 | 45
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 61 | 58
Revolving Loans Convert. to Term | 0 | 263
Loans | 102 | 412
Other Consumer |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 4 | 370
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 0 | 0
One year before current period | 0 | 0
Current period | 126 | 0
Revolving Loans Amort. Cost Basis | 1,561 | 1,057
Revolving Loans Convert. to Term | 53 | 0
Loans | 1,744 | 1,427
Other Consumer | Pass |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 4 | 370
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 0 | 0
One year before current period | 0 | 0
Current period | 126 | 0
Revolving Loans Amort. Cost Basis | 1,561 | 1,002
Revolving Loans Convert. to Term | 3 | 0
Loans | 1,694 | 1,372
Other Consumer | Watch |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 0 |
Four years before current period | 0 |
Three years before current period | 0 |
Two years before current period | 0 |
One year before current period | 0 |
Current period | 0 |
Revolving Loans Amort. Cost Basis | 0 |
Revolving Loans Convert. to Term | 0 |
Loans | 0 |
Other Consumer | Substandard |  |
Loans and Leases Receivable Disclosure [Line Items] |  |
Prior | 0 | 0
Four years before current period | 0 | 0
Three years before current period | 0 | 0
Two years before current period | 0 | 0
One year before current period | 0 | 0
Current period | 0 | 0
Revolving Loans Amort. Cost Basis | 0 | 55
Revolving Loans Convert. to Term | 50 | 0
Loans | $ 50 | $ 55

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