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Loans and Allowances for Credit Losses, Credit Quality Indicators (Details) - USD ($) $ in Thousands | Sep. 30, 2022 | Dec. 31, 2021
--- | --- | ---
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | $ 3,395,423 | $ 3,678,190
Financing Receivable, Originated, Year Two | 3,387,863 | 2,680,781
Financing Receivable, Originated, Year Three | 2,252,921 | 2,305,870
Financing Receivable, Originated, Year Four | 1,886,189 | 1,579,560
Financing Receivable, Originated, Year Five | 1,202,794 | 1,250,651
Financing Receivable, Originated, More Than Five Years | 3,306,339 | 3,124,953
Financing Receivable, Revolving | 6,322,156 | 5,559,595
Financing Receivable, Revolving, Converted to Term Loan | 36,772 | 26,080
Total | 21,790,457 | 20,205,680
Commercial [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 2,079,890 | 2,115,523
Financing Receivable, Originated, Year Two | 1,642,910 | 1,284,235
Financing Receivable, Originated, Year Three | 1,054,262 | 1,142,464
Financing Receivable, Originated, Year Four | 908,859 | 995,008
Financing Receivable, Originated, Year Five | 788,996 | 761,286
Financing Receivable, Originated, More Than Five Years | 1,867,693 | 1,725,540
Financing Receivable, Revolving | 5,252,741 | 4,479,513
Financing Receivable, Revolving, Converted to Term Loan | 12,335 | 2,896
Total | 13,607,686 | 12,506,465
Commercial [Member] | Energy [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 165,547 | 263,341
Financing Receivable, Originated, Year Two | 87,788 | 73,425
Financing Receivable, Originated, Year Three | 31,140 | 17,099
Financing Receivable, Originated, Year Four | 14,555 | 14,362
Financing Receivable, Originated, Year Five | 6,635 | 4,741
Financing Receivable, Originated, More Than Five Years | 6,071 | 8,195
Financing Receivable, Revolving | 3,050,327 | 2,625,721
Financing Receivable, Revolving, Converted to Term Loan | 9,525 | 0
Total | 3,371,588 | 3,006,884
Commercial [Member] | Healthcare [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 734,327 | 570,635
Financing Receivable, Originated, Year Two | 603,595 | 589,193
Financing Receivable, Originated, Year Three | 515,393 | 559,276
Financing Receivable, Originated, Year Four | 489,417 | 506,083
Financing Receivable, Originated, Year Five | 470,642 | 330,231
Financing Receivable, Originated, More Than Five Years | 783,897 | 698,828
Financing Receivable, Revolving | 229,330 | 160,668
Financing Receivable, Revolving, Converted to Term Loan | 22 | 26
Total | 3,826,623 | 3,414,940
Commercial [Member] | Services [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 600,687 | 696,626
Financing Receivable, Originated, Year Two | 515,341 | 405,992
Financing Receivable, Originated, Year Three | 300,785 | 295,371
Financing Receivable, Originated, Year Four | 202,643 | 287,001
Financing Receivable, Originated, Year Five | 162,517 | 244,397
Financing Receivable, Originated, More Than Five Years | 761,169 | 799,961
Financing Receivable, Revolving | 736,946 | 637,278
Financing Receivable, Revolving, Converted to Term Loan | 837 | 567
Total | 3,280,925 | 3,367,193
Commercial [Member] | General business [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 579,329 | 584,921
Financing Receivable, Originated, Year Two | 436,186 | 215,625
Financing Receivable, Originated, Year Three | 206,944 | 270,718
Financing Receivable, Originated, Year Four | 202,244 | 187,562
Financing Receivable, Originated, Year Five | 149,202 | 181,917
Financing Receivable, Originated, More Than Five Years | 316,556 | 218,556
Financing Receivable, Revolving | 1,236,138 | 1,055,846
Financing Receivable, Revolving, Converted to Term Loan | 1,951 | 2,303
Total | 3,128,550 | 2,717,448
Commercial real estate [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 854,039 | 717,400
Financing Receivable, Originated, Year Two | 1,146,736 | 711,231
Financing Receivable, Originated, Year Three | 616,509 | 879,359
Financing Receivable, Originated, Year Four | 725,150 | 423,127
Financing Receivable, Originated, Year Five | 276,614 | 294,436
Financing Receivable, Originated, More Than Five Years | 716,695 | 687,894
Financing Receivable, Revolving | 138,168 | 117,847
Financing Receivable, Revolving, Converted to Term Loan | 0 | 31
Total | 4,473,911 | 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 | 9,042 | 38,984
Financing Receivable, Originated, Year Three | 11,191 | 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 | 20,233 | 276,341
Loans to individuals [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 461,494 | 607,910
Financing Receivable, Originated, Year Two | 589,175 | 646,331
Financing Receivable, Originated, Year Three | 570,959 | 284,047
Financing Receivable, Originated, Year Four | 252,180 | 161,425
Financing Receivable, Originated, Year Five | 137,184 | 194,929
Financing Receivable, Originated, More Than Five Years | 721,951 | 711,519
Financing Receivable, Revolving | 931,247 | 962,235
Financing Receivable, Revolving, Converted to Term Loan | 24,437 | 23,153
Total | 3,688,627 | 3,591,549
Loans to individuals [Member] | Residential mortgage [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 280,356 | 387,706
Financing Receivable, Originated, Year Two | 377,726 | 454,346
Financing Receivable, Originated, Year Three | 405,027 | 84,540
Financing Receivable, Originated, Year Four | 68,297 | 62,358
Financing Receivable, Originated, Year Five | 44,550 | 68,925
Financing Receivable, Originated, More Than Five Years | 299,035 | 318,373
Financing Receivable, Revolving | 352,765 | 323,497
Financing Receivable, Revolving, Converted to Term Loan | 24,080 | 22,425
Total | 1,851,836 | 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 | 2,235 | 11,380
Financing Receivable, Originated, Year Three | 9,175 | 21,909
Financing Receivable, Originated, Year Four | 13,462 | 28,791
Financing Receivable, Originated, Year Five | 21,482 | 33,377
Financing Receivable, Originated, More Than Five Years | 216,112 | 258,017
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 262,466 | 354,173
Loans to individuals [Member] | Personal [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 181,138 | 219,505
Financing Receivable, Originated, Year Two | 209,214 | 180,605
Financing Receivable, Originated, Year Three | 156,757 | 177,598
Financing Receivable, Originated, Year Four | 170,421 | 70,276
Financing Receivable, Originated, Year Five | 71,152 | 92,627
Financing Receivable, Originated, More Than Five Years | 206,804 | 135,129
Financing Receivable, Revolving | 578,482 | 638,738
Financing Receivable, Revolving, Converted to Term Loan | 357 | 728
Total | 1,574,325 | 1,515,206
Performing [Member] | Commercial [Member] | Energy [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 165,547 | 252,133
Financing Receivable, Originated, Year Two | 87,788 | 29,556
Financing Receivable, Originated, Year Three | 31,140 | 15,914
Financing Receivable, Originated, Year Four | 13,509 | 13,548
Financing Receivable, Originated, Year Five | 6,153 | 4,741
Financing Receivable, Originated, More Than Five Years | 5,091 | 6,765
Financing Receivable, Revolving | 3,023,546 | 2,540,525
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 3,332,774 | 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 |  | 558
Financing Receivable, Originated, Year Two |  | 771
Financing Receivable, Originated, Year Three |  | 0
Financing Receivable, Originated, Year Four |  | 0
Financing Receivable, Originated, Year Five |  | 0
Financing Receivable, Originated, More Than Five Years |  | 0
Financing Receivable, Revolving |  | 750
Financing Receivable, Revolving, Converted to Term Loan |  | 0
Total |  | 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 | 1,046 | 814
Financing Receivable, Originated, Year Five | 482 | 0
Financing Receivable, Originated, More Than Five Years | 688 | 716
Financing Receivable, Revolving | 22,909 | 74,556
Financing Receivable, Revolving, Converted to Term Loan | 9,525 | 0
Total | 34,650 | 110,532
Performing [Member] | Commercial [Member] | Healthcare [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 734,327 | 563,800
Financing Receivable, Originated, Year Two | 603,595 | 589,193
Financing Receivable, Originated, Year Three | 515,393 | 516,558
Financing Receivable, Originated, Year Four | 462,765 | 498,998
Financing Receivable, Originated, Year Five | 464,154 | 319,096
Financing Receivable, Originated, More Than Five Years | 748,312 | 688,136
Financing Receivable, Revolving | 229,326 | 160,154
Financing Receivable, Revolving, Converted to Term Loan | 22 | 26
Total | 3,757,894 | 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 | 0 | 0
Financing Receivable, Originated, Year Three | 0 | 15,583
Financing Receivable, Originated, Year Four | 0 | 0
Financing Receivable, Originated, Year Five | 0 | 11,135
Financing Receivable, Originated, More Than Five Years | 20,452 | 0
Financing Receivable, Revolving | 4 | 5
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 20,456 | 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 | 0 | 543
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 6,835 | 1,981
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 6,835 | 29,659
Performing [Member] | Commercial [Member] | Services [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 600,374 | 696,149
Financing Receivable, Originated, Year Two | 512,773 | 405,057
Financing Receivable, Originated, Year Three | 300,490 | 289,375
Financing Receivable, Originated, Year Four | 199,238 | 275,010
Financing Receivable, Originated, Year Five | 161,527 | 225,404
Financing Receivable, Originated, More Than Five Years | 754,204 | 795,029
Financing Receivable, Revolving | 689,197 | 607,958
Financing Receivable, Revolving, Converted to Term Loan | 683 | 375
Total | 3,218,486 | 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 | 313 | 434
Financing Receivable, Originated, Year Two | 396 | 405
Financing Receivable, Originated, Year Three | 295 | 1,830
Financing Receivable, Originated, Year Four | 769 | 1,047
Financing Receivable, Originated, Year Five | 940 | 3,290
Financing Receivable, Originated, More Than Five Years | 39 | 47
Financing Receivable, Revolving | 999 | 17,210
Financing Receivable, Revolving, Converted to Term Loan | 0 | 192
Total | 3,751 | 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 | 0 | 530
Financing Receivable, Originated, Year Three | 0 | 4,166
Financing Receivable, Originated, Year Four | 2,636 | 10,714
Financing Receivable, Originated, Year Five | 50 | 1,785
Financing Receivable, Originated, More Than Five Years | 2,867 | 2,366
Financing Receivable, Revolving | 25,666 | 11,607
Financing Receivable, Revolving, Converted to Term Loan | 154 | 0
Total | 31,373 | 31,211
Performing [Member] | Commercial [Member] | General business [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 579,329 | 584,438
Financing Receivable, Originated, Year Two | 433,284 | 211,892
Financing Receivable, Originated, Year Three | 205,796 | 264,462
Financing Receivable, Originated, Year Four | 197,961 | 177,384
Financing Receivable, Originated, Year Five | 143,995 | 168,977
Financing Receivable, Originated, More Than Five Years | 306,131 | 215,014
Financing Receivable, Revolving | 1,227,059 | 1,047,420
Financing Receivable, Revolving, Converted to Term Loan | 1,883 | 2,284
Total | 3,095,438 | 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 | 878 | 223
Financing Receivable, Originated, Year Three | 0 | 60
Financing Receivable, Originated, Year Four | 0 | 1,435
Financing Receivable, Originated, Year Five | 1,889 | 3,842
Financing Receivable, Originated, More Than Five Years | 1,153 | 0
Financing Receivable, Revolving | 8,314 | 5,875
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 12,234 | 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 | 2,024 | 1,066
Financing Receivable, Originated, Year Three | 75 | 1,634
Financing Receivable, Originated, Year Four | 4,269 | 7,697
Financing Receivable, Originated, Year Five | 2,365 | 8,336
Financing Receivable, Originated, More Than Five Years | 9,265 | 3,024
Financing Receivable, Revolving | 88 | 1,821
Financing Receivable, Revolving, Converted to Term Loan | 39 | 0
Total | 18,125 | 23,843
Performing [Member] | Commercial real estate [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 854,039 | 717,400
Financing Receivable, Originated, Year Two | 1,146,736 | 711,231
Financing Receivable, Originated, Year Three | 616,509 | 871,283
Financing Receivable, Originated, Year Four | 717,579 | 403,115
Financing Receivable, Originated, Year Five | 276,614 | 279,058
Financing Receivable, Originated, More Than Five Years | 686,543 | 664,684
Financing Receivable, Revolving | 138,168 | 117,847
Financing Receivable, Revolving, Converted to Term Loan | 0 | 31
Total | 4,436,188 | 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 | 26,652 | 9,244
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 26,652 | 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 | 0 | 4,480
Financing Receivable, Originated, More Than Five Years | 3,100 | 7,780
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 3,100 | 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 | 9,042 | 38,984
Financing Receivable, Originated, Year Three | 11,191 | 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 | 20,233 | 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 | 280,323 | 386,092
Financing Receivable, Originated, Year Two | 376,110 | 452,537
Financing Receivable, Originated, Year Three | 402,088 | 84,001
Financing Receivable, Originated, Year Four | 67,906 | 60,390
Financing Receivable, Originated, Year Five | 42,603 | 68,150
Financing Receivable, Originated, More Than Five Years | 278,129 | 295,632
Financing Receivable, Revolving | 350,036 | 320,638
Financing Receivable, Revolving, Converted to Term Loan | 23,185 | 21,463
Total | 1,820,380 | 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 | 59 | 0
Financing Receivable, Originated, Year Three | 189 | 156
Financing Receivable, Originated, Year Four | 16 | 0
Financing Receivable, Originated, Year Five | 11 | 19
Financing Receivable, Originated, More Than Five Years | 261 | 411
Financing Receivable, Revolving | 629 | 282
Financing Receivable, Revolving, Converted to Term Loan | 37 | 159
Total | 1,202 | 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 | 17 | 0
Financing Receivable, Originated, Year Five | 0 | 127
Financing Receivable, Originated, More Than Five Years | 81 | 41
Financing Receivable, Revolving | 51 | 400
Financing Receivable, Revolving, Converted to Term Loan | 39 | 0
Total | 188 | 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 | 2,235 | 11,380
Financing Receivable, Originated, Year Three | 8,876 | 20,650
Financing Receivable, Originated, Year Four | 11,995 | 27,970
Financing Receivable, Originated, Year Five | 18,851 | 32,742
Financing Receivable, Originated, More Than Five Years | 203,552 | 246,871
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 245,509 | 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 | 181,102 | 218,960
Financing Receivable, Originated, Year Two | 208,625 | 180,577
Financing Receivable, Originated, Year Three | 156,718 | 177,389
Financing Receivable, Originated, Year Four | 170,232 | 70,249
Financing Receivable, Originated, Year Five | 71,133 | 92,592
Financing Receivable, Originated, More Than Five Years | 206,780 | 135,041
Financing Receivable, Revolving | 578,456 | 638,713
Financing Receivable, Revolving, Converted to Term Loan | 357 | 728
Total | 1,573,403 | 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 | 26 | 0
Financing Receivable, Originated, Year Two | 129 | 9
Financing Receivable, Originated, Year Three | 25 | 34
Financing Receivable, Originated, Year Four | 6 | 3
Financing Receivable, Originated, Year Five | 12 | 0
Financing Receivable, Originated, More Than Five Years | 4 | 47
Financing Receivable, Revolving | 1 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 203 | 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 | 423 | 5
Financing Receivable, Originated, Year Three | 0 | 165
Financing Receivable, Originated, Year Four | 160 | 0
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 0 | 1
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 583 | 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 | 0 | 0
Financing Receivable, Originated, Year Four | 0 | 0
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 292 | 714
Financing Receivable, Revolving | 3,872 | 9,890
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 4,164 | 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 | 26,652 | 6,542
Financing Receivable, Originated, Year Five | 6,488 | 0
Financing Receivable, Originated, More Than Five Years | 8,298 | 8,711
Financing Receivable, Revolving | 0 | 509
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 41,438 | 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 | 2,172 | 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 | 4,059 | 2,519
Financing Receivable, Revolving | 21,084 | 503
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 27,315 | 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 | 1,073 | 4,562
Financing Receivable, Originated, Year Four | 14 | 1,046
Financing Receivable, Originated, Year Five | 953 | 762
Financing Receivable, Originated, More Than Five Years | 7 | 518
Financing Receivable, Revolving | 677 | 730
Financing Receivable, Revolving, Converted to Term Loan | 29 | 19
Total | 2,753 | 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 | 7,571 | 0
Financing Receivable, Originated, Year Five | 0 | 0
Financing Receivable, Originated, More Than Five Years | 400 | 6,186
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 7,971 | 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 | 33 | 1,516
Financing Receivable, Originated, Year Two | 1,557 | 1,809
Financing Receivable, Originated, Year Three | 2,750 | 383
Financing Receivable, Originated, Year Four | 358 | 1,968
Financing Receivable, Originated, Year Five | 1,936 | 629
Financing Receivable, Originated, More Than Five Years | 20,564 | 22,289
Financing Receivable, Revolving | 2,049 | 2,177
Financing Receivable, Revolving, Converted to Term Loan | 819 | 803
Total | 30,066 | 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 | 299 | 1,259
Financing Receivable, Originated, Year Four | 1,467 | 821
Financing Receivable, Originated, Year Five | 2,631 | 635
Financing Receivable, Originated, More Than Five Years | 12,560 | 11,146
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 16,957 | 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 | 10 | 110
Financing Receivable, Originated, Year Two | 37 | 14
Financing Receivable, Originated, Year Three | 14 | 10
Financing Receivable, Originated, Year Four | 23 | 24
Financing Receivable, Originated, Year Five | 7 | 35
Financing Receivable, Originated, More Than Five Years | 20 | 40
Financing Receivable, Revolving | 25 | 25
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | $ 136 | $ 258

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