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Loans and Allowances for Credit Losses, Credit Quality Indicators (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | $ 905,055 | $ 3,678,190
Financing Receivable, Originated, Year Two | 3,572,534 | 2,680,781
Financing Receivable, Originated, Year Three | 2,542,803 | 2,305,870
Financing Receivable, Originated, Year Four | 2,196,403 | 1,579,560
Financing Receivable, Originated, Year Five | 1,495,368 | 1,250,651
Financing Receivable, Originated, More Than Five Years | 3,971,169 | 3,124,953
Financing Receivable, Revolving | 5,955,046 | 5,559,595
Financing Receivable, Revolving, Converted to Term Loan | 36,051 | 26,080
Total | 20,674,429 | 20,205,680
Commercial [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 507,164 | 2,115,523
Financing Receivable, Originated, Year Two | 1,921,320 | 1,284,235
Financing Receivable, Originated, Year Three | 1,209,815 | 1,142,464
Financing Receivable, Originated, Year Four | 1,098,515 | 995,008
Financing Receivable, Originated, Year Five | 936,611 | 761,286
Financing Receivable, Originated, More Than Five Years | 2,285,863 | 1,725,540
Financing Receivable, Revolving | 4,911,235 | 4,479,513
Financing Receivable, Revolving, Converted to Term Loan | 12,666 | 2,896
Total | 12,883,189 | 12,506,465
Commercial [Member] | Energy [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 102,694 | 263,341
Financing Receivable, Originated, Year Two | 156,718 | 73,425
Financing Receivable, Originated, Year Three | 68,821 | 17,099
Financing Receivable, Originated, Year Four | 16,817 | 14,362
Financing Receivable, Originated, Year Five | 12,618 | 4,741
Financing Receivable, Originated, More Than Five Years | 9,757 | 8,195
Financing Receivable, Revolving | 2,820,342 | 2,625,721
Financing Receivable, Revolving, Converted to Term Loan | 9,900 | 0
Total | 3,197,667 | 3,006,884
Commercial [Member] | Healthcare [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 140,071 | 570,635
Financing Receivable, Originated, Year Two | 581,679 | 589,193
Financing Receivable, Originated, Year Three | 549,379 | 559,276
Financing Receivable, Originated, Year Four | 557,169 | 506,083
Financing Receivable, Originated, Year Five | 490,451 | 330,231
Financing Receivable, Originated, More Than Five Years | 954,699 | 698,828
Financing Receivable, Revolving | 168,260 | 160,668
Financing Receivable, Revolving, Converted to Term Loan | 24 | 26
Total | 3,441,732 | 3,414,940
Commercial [Member] | Services [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 54,992 | 696,626
Financing Receivable, Originated, Year Two | 634,931 | 405,992
Financing Receivable, Originated, Year Three | 368,549 | 295,371
Financing Receivable, Originated, Year Four | 272,045 | 287,001
Financing Receivable, Originated, Year Five | 257,921 | 244,397
Financing Receivable, Originated, More Than Five Years | 952,629 | 799,961
Financing Receivable, Revolving | 809,679 | 637,278
Financing Receivable, Revolving, Converted to Term Loan | 749 | 567
Total | 3,351,495 | 3,367,193
Commercial [Member] | General business [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 209,407 | 584,921
Financing Receivable, Originated, Year Two | 547,992 | 215,625
Financing Receivable, Originated, Year Three | 223,066 | 270,718
Financing Receivable, Originated, Year Four | 252,484 | 187,562
Financing Receivable, Originated, Year Five | 175,621 | 181,917
Financing Receivable, Originated, More Than Five Years | 368,778 | 218,556
Financing Receivable, Revolving | 1,112,954 | 1,055,846
Financing Receivable, Revolving, Converted to Term Loan | 1,993 | 2,303
Total | 2,892,295 | 2,717,448
Commercial real estate [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 279,254 | 717,400
Financing Receivable, Originated, Year Two | 921,473 | 711,231
Financing Receivable, Originated, Year Three | 695,399 | 879,359
Financing Receivable, Originated, Year Four | 834,058 | 423,127
Financing Receivable, Originated, Year Five | 412,134 | 294,436
Financing Receivable, Originated, More Than Five Years | 850,833 | 687,894
Financing Receivable, Revolving | 107,780 | 117,847
Financing Receivable, Revolving, Converted to Term Loan | 25 | 31
Total | 4,100,956 | 3,831,325
Paycheck Protection Program [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 237,357
Financing Receivable, Originated, Year Two | 113,697 | 38,984
Financing Receivable, Originated, Year Three | 23,668 | 0
Financing Receivable, Originated, Year Four | 0 | 0
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 0 | 0
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 137,365 | 276,341
Loans to individuals [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 118,637 | 607,910
Financing Receivable, Originated, Year Two | 616,044 | 646,331
Financing Receivable, Originated, Year Three | 613,921 | 284,047
Financing Receivable, Originated, Year Four | 263,830 | 161,425
Financing Receivable, Originated, Year Five | 146,623 | 194,929
Financing Receivable, Originated, More Than Five Years | 834,473 | 711,519
Financing Receivable, Revolving | 936,031 | 962,235
Financing Receivable, Revolving, Converted to Term Loan | 23,360 | 23,153
Total | 3,552,919 | 3,591,549
Loans to individuals [Member] | Residential mortgage [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 77,848 | 387,706
Financing Receivable, Originated, Year Two | 394,629 | 454,346
Financing Receivable, Originated, Year Three | 430,536 | 84,540
Financing Receivable, Originated, Year Four | 71,273 | 62,358
Financing Receivable, Originated, Year Five | 51,011 | 68,925
Financing Receivable, Originated, More Than Five Years | 352,616 | 318,373
Financing Receivable, Revolving | 322,831 | 323,497
Financing Receivable, Revolving, Converted to Term Loan | 22,762 | 22,425
Total | 1,723,506 | 1,722,170
Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 699
Financing Receivable, Originated, Year Two | 1,080 | 11,380
Financing Receivable, Originated, Year Three | 11,379 | 21,909
Financing Receivable, Originated, Year Four | 17,859 | 28,791
Financing Receivable, Originated, Year Five | 25,226 | 33,377
Financing Receivable, Originated, More Than Five Years | 267,037 | 258,017
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 322,581 | 354,173
Loans to individuals [Member] | Personal [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 40,789 | 219,505
Financing Receivable, Originated, Year Two | 220,335 | 180,605
Financing Receivable, Originated, Year Three | 172,006 | 177,598
Financing Receivable, Originated, Year Four | 174,698 | 70,276
Financing Receivable, Originated, Year Five | 70,386 | 92,627
Financing Receivable, Originated, More Than Five Years | 214,820 | 135,129
Financing Receivable, Revolving | 613,200 | 638,738
Financing Receivable, Revolving, Converted to Term Loan | 598 | 728
Total | 1,506,832 | 1,515,206
Performing [Member] | Commercial [Member] | Energy [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 102,694 | 252,133
Financing Receivable, Originated, Year Two | 156,167 | 29,556
Financing Receivable, Originated, Year Three | 48,775 | 15,914
Financing Receivable, Originated, Year Four | 15,678 | 13,548
Financing Receivable, Originated, Year Five | 11,925 | 4,741
Financing Receivable, Originated, More Than Five Years | 8,450 | 6,765
Financing Receivable, Revolving | 2,753,419 | 2,540,525
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 3,097,108 | 2,863,182
Performing [Member] | Commercial [Member] | Energy [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 558
Financing Receivable, Originated, Year Two | 551 | 771
Financing Receivable, Originated, Year Three | 642 | 0
Financing Receivable, Originated, Year Four | 0 | 0
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 0 | 0
Financing Receivable, Revolving | 1,090 | 750
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 2,283 | 2,079
Performing [Member] | Commercial [Member] | Energy [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 10,650
Financing Receivable, Originated, Year Two | 0 | 22,611
Financing Receivable, Originated, Year Three | 0 | 1,185
Financing Receivable, Originated, Year Four | 1,139 | 814
Financing Receivable, Originated, Year Five | 693 | 0
Financing Receivable, Originated, More Than Five Years | 705 | 716
Financing Receivable, Revolving | 60,863 | 74,556
Financing Receivable, Revolving, Converted to Term Loan | 9,900 | 0
Total | 73,300 | 110,532
Performing [Member] | Commercial [Member] | Healthcare [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 140,071 | 563,800
Financing Receivable, Originated, Year Two | 574,892 | 589,193
Financing Receivable, Originated, Year Three | 549,379 | 516,558
Financing Receivable, Originated, Year Four | 514,779 | 498,998
Financing Receivable, Originated, Year Five | 483,909 | 319,096
Financing Receivable, Originated, More Than Five Years | 933,344 | 688,136
Financing Receivable, Revolving | 168,255 | 160,154
Financing Receivable, Revolving, Converted to Term Loan | 24 | 26
Total | 3,364,653 | 3,335,961
Performing [Member] | Commercial [Member] | Healthcare [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 6,835
Financing Receivable, Originated, Year Two | 6,787 | 0
Financing Receivable, Originated, Year Three | 0 | 15,583
Financing Receivable, Originated, Year Four | 15,417 | 0
Financing Receivable, Originated, Year Five | 0 | 11,135
Financing Receivable, Originated, More Than Five Years | 5,712 | 0
Financing Receivable, Revolving | 5 | 5
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 27,921 | 33,558
Performing [Member] | Commercial [Member] | Healthcare [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 0 | 0
Financing Receivable, Originated, Year Three | 0 | 27,135
Financing Receivable, Originated, Year Four | 26,973 | 543
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 7,109 | 1,981
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 34,082 | 29,659
Performing [Member] | Commercial [Member] | Services [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 54,992 | 696,149
Financing Receivable, Originated, Year Two | 634,506 | 405,057
Financing Receivable, Originated, Year Three | 361,724 | 289,375
Financing Receivable, Originated, Year Four | 266,054 | 275,010
Financing Receivable, Originated, Year Five | 246,336 | 225,404
Financing Receivable, Originated, More Than Five Years | 933,399 | 795,029
Financing Receivable, Revolving | 779,824 | 607,958
Financing Receivable, Revolving, Converted to Term Loan | 567 | 375
Total | 3,277,402 | 3,294,357
Performing [Member] | Commercial [Member] | Services [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 434
Financing Receivable, Originated, Year Two | 415 | 405
Financing Receivable, Originated, Year Three | 6,326 | 1,830
Financing Receivable, Originated, Year Four | 1,989 | 1,047
Financing Receivable, Originated, Year Five | 1,006 | 3,290
Financing Receivable, Originated, More Than Five Years | 95 | 47
Financing Receivable, Revolving | 22,419 | 17,210
Financing Receivable, Revolving, Converted to Term Loan | 182 | 192
Total | 32,432 | 24,455
Performing [Member] | Commercial [Member] | Services [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 43
Financing Receivable, Originated, Year Two | 10 | 530
Financing Receivable, Originated, Year Three | 499 | 4,166
Financing Receivable, Originated, Year Four | 4,002 | 10,714
Financing Receivable, Originated, Year Five | 10,579 | 1,785
Financing Receivable, Originated, More Than Five Years | 2,990 | 2,366
Financing Receivable, Revolving | 7,046 | 11,607
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 25,126 | 31,211
Performing [Member] | Commercial [Member] | General business [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 209,407 | 584,438
Financing Receivable, Originated, Year Two | 547,777 | 211,892
Financing Receivable, Originated, Year Three | 220,861 | 264,462
Financing Receivable, Originated, Year Four | 250,546 | 177,384
Financing Receivable, Originated, Year Five | 167,570 | 168,977
Financing Receivable, Originated, More Than Five Years | 356,548 | 215,014
Financing Receivable, Revolving | 1,102,054 | 1,047,420
Financing Receivable, Revolving, Converted to Term Loan | 1,981 | 2,284
Total | 2,856,744 | 2,671,871
Performing [Member] | Commercial [Member] | General business [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 218
Financing Receivable, Originated, Year Two | 0 | 223
Financing Receivable, Originated, Year Three | 137 | 60
Financing Receivable, Originated, Year Four | 0 | 1,435
Financing Receivable, Originated, Year Five | 1,374 | 3,842
Financing Receivable, Originated, More Than Five Years | 2,975 | 0
Financing Receivable, Revolving | 8,100 | 5,875
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 12,586 | 11,653
Performing [Member] | Commercial [Member] | General business [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 265
Financing Receivable, Originated, Year Two | 215 | 1,066
Financing Receivable, Originated, Year Three | 957 | 1,634
Financing Receivable, Originated, Year Four | 1,139 | 7,697
Financing Receivable, Originated, Year Five | 5,673 | 8,336
Financing Receivable, Originated, More Than Five Years | 9,231 | 3,024
Financing Receivable, Revolving | 2,000 | 1,821
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 19,215 | 23,843
Performing [Member] | Commercial real estate [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 279,254 | 717,400
Financing Receivable, Originated, Year Two | 921,473 | 711,231
Financing Receivable, Originated, Year Three | 695,399 | 871,283
Financing Receivable, Originated, Year Four | 826,150 | 403,115
Financing Receivable, Originated, Year Five | 398,633 | 279,058
Financing Receivable, Originated, More Than Five Years | 820,481 | 664,684
Financing Receivable, Revolving | 107,780 | 117,847
Financing Receivable, Revolving, Converted to Term Loan | 25 | 31
Total | 4,049,195 | 3,764,649
Performing [Member] | Commercial real estate [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 0 | 0
Financing Receivable, Originated, Year Three | 0 | 0
Financing Receivable, Originated, Year Four | 0 | 6,660
Financing Receivable, Originated, Year Five | 0 | 10,898
Financing Receivable, Originated, More Than Five Years | 18,942 | 9,244
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 18,942 | 26,802
Performing [Member] | Commercial real estate [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 0 | 0
Financing Receivable, Originated, Year Three | 0 | 0
Financing Receivable, Originated, Year Four | 0 | 13,352
Financing Receivable, Originated, Year Five | 13,501 | 4,480
Financing Receivable, Originated, More Than Five Years | 3,329 | 7,780
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 16,830 | 25,612
Performing [Member] | Paycheck Protection Program [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 237,357
Financing Receivable, Originated, Year Two | 113,697 | 38,984
Financing Receivable, Originated, Year Three | 23,668 | 0
Financing Receivable, Originated, Year Four | 0 | 0
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 0 | 0
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 137,365 | 276,341
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 77,813 | 386,092
Financing Receivable, Originated, Year Two | 393,077 | 452,537
Financing Receivable, Originated, Year Three | 427,965 | 84,001
Financing Receivable, Originated, Year Four | 70,900 | 60,390
Financing Receivable, Originated, Year Five | 48,809 | 68,150
Financing Receivable, Originated, More Than Five Years | 330,626 | 295,632
Financing Receivable, Revolving | 320,350 | 320,638
Financing Receivable, Revolving, Converted to Term Loan | 21,887 | 21,463
Total | 1,691,427 | 1,688,903
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 35 | 0
Financing Receivable, Originated, Year Three | 0 | 156
Financing Receivable, Originated, Year Four | 17 | 0
Financing Receivable, Originated, Year Five | 145 | 19
Financing Receivable, Originated, More Than Five Years | 284 | 411
Financing Receivable, Revolving | 552 | 282
Financing Receivable, Revolving, Converted to Term Loan | 210 | 159
Total | 1,243 | 1,027
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 98
Financing Receivable, Originated, Year Two | 0 | 0
Financing Receivable, Originated, Year Three | 0 | 0
Financing Receivable, Originated, Year Four | 0 | 0
Financing Receivable, Originated, Year Five | 0 | 127
Financing Receivable, Originated, More Than Five Years | 53 | 41
Financing Receivable, Revolving | 26 | 400
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 79 | 666
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 699
Financing Receivable, Originated, Year Two | 1,080 | 11,380
Financing Receivable, Originated, Year Three | 11,379 | 20,650
Financing Receivable, Originated, Year Four | 15,778 | 27,970
Financing Receivable, Originated, Year Five | 23,480 | 32,742
Financing Receivable, Originated, More Than Five Years | 253,872 | 246,871
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 305,589 | 340,312
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 40,789 | 218,960
Financing Receivable, Originated, Year Two | 219,748 | 180,577
Financing Receivable, Originated, Year Three | 171,964 | 177,389
Financing Receivable, Originated, Year Four | 174,523 | 70,249
Financing Receivable, Originated, Year Five | 70,349 | 92,592
Financing Receivable, Originated, More Than Five Years | 214,736 | 135,041
Financing Receivable, Revolving | 613,114 | 638,713
Financing Receivable, Revolving, Converted to Term Loan | 598 | 728
Total | 1,505,821 | 1,514,249
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 49 | 9
Financing Receivable, Originated, Year Three | 23 | 34
Financing Receivable, Originated, Year Four | 0 | 3
Financing Receivable, Originated, Year Five | 15 | 0
Financing Receivable, Originated, More Than Five Years | 42 | 47
Financing Receivable, Revolving | 15 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 144 | 93
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 435
Financing Receivable, Originated, Year Two | 524 | 5
Financing Receivable, Originated, Year Three | 0 | 165
Financing Receivable, Originated, Year Four | 165 | 0
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 0 | 1
Financing Receivable, Revolving | 7 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 696 | 606
Nonperforming Financial Instruments [Member] | Commercial [Member] | Energy [Member] | Nonaccrual [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 0 | 20,487
Financing Receivable, Originated, Year Three | 19,404 | 0
Financing Receivable, Originated, Year Four | 0 | 0
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 602 | 714
Financing Receivable, Revolving | 4,970 | 9,890
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 24,976 | 31,091
Nonperforming Financial Instruments [Member] | Commercial [Member] | Healthcare [Member] | Nonaccrual [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 0 | 0
Financing Receivable, Originated, Year Three | 0 | 0
Financing Receivable, Originated, Year Four | 0 | 6,542
Financing Receivable, Originated, Year Five | 6,542 | 0
Financing Receivable, Originated, More Than Five Years | 8,534 | 8,711
Financing Receivable, Revolving | 0 | 509
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 15,076 | 15,762
Nonperforming Financial Instruments [Member] | Commercial [Member] | Services [Member] | Nonaccrual [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 0 | 0
Financing Receivable, Originated, Year Three | 0 | 0
Financing Receivable, Originated, Year Four | 0 | 230
Financing Receivable, Originated, Year Five | 0 | 13,918
Financing Receivable, Originated, More Than Five Years | 16,145 | 2,519
Financing Receivable, Revolving | 390 | 503
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 16,535 | 17,170
Nonperforming Financial Instruments [Member] | Commercial [Member] | General business [Member] | Nonaccrual [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 0 | 2,444
Financing Receivable, Originated, Year Three | 1,111 | 4,562
Financing Receivable, Originated, Year Four | 799 | 1,046
Financing Receivable, Originated, Year Five | 1,004 | 762
Financing Receivable, Originated, More Than Five Years | 24 | 518
Financing Receivable, Revolving | 800 | 730
Financing Receivable, Revolving, Converted to Term Loan | 12 | 19
Total | 3,750 | 10,081
Nonperforming Financial Instruments [Member] | Commercial real estate [Member] | Nonaccrual [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 0 | 0
Financing Receivable, Originated, Year Three | 0 | 8,076
Financing Receivable, Originated, Year Four | 7,908 | 0
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 8,081 | 6,186
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 15,989 | 14,262
Nonperforming Financial Instruments [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Nonaccrual [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 35 | 1,516
Financing Receivable, Originated, Year Two | 1,517 | 1,809
Financing Receivable, Originated, Year Three | 2,571 | 383
Financing Receivable, Originated, Year Four | 356 | 1,968
Financing Receivable, Originated, Year Five | 2,057 | 629
Financing Receivable, Originated, More Than Five Years | 21,653 | 22,289
Financing Receivable, Revolving | 1,903 | 2,177
Financing Receivable, Revolving, Converted to Term Loan | 665 | 803
Total | 30,757 | 31,574
Nonperforming Financial Instruments [Member] | Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans [Member] | Nonaccrual [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year Two | 0 | 0
Financing Receivable, Originated, Year Three | 0 | 1,259
Financing Receivable, Originated, Year Four | 2,081 | 821
Financing Receivable, Originated, Year Five | 1,746 | 635
Financing Receivable, Originated, More Than Five Years | 13,165 | 11,146
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 16,992 | 13,861
Nonperforming Financial Instruments [Member] | Loans to individuals [Member] | Personal [Member] | Nonaccrual [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 110
Financing Receivable, Originated, Year Two | 14 | 14
Financing Receivable, Originated, Year Three | 19 | 10
Financing Receivable, Originated, Year Four | 10 | 24
Financing Receivable, Originated, Year Five | 22 | 35
Financing Receivable, Originated, More Than Five Years | 42 | 40
Financing Receivable, Revolving | 64 | 25
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | $ 171 | $ 258

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