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Loans and Allowances for Credit Losses, Credit Quality Indicators (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | $ 3,678,190 | $ 4,855,463
Financing Receivable, Originated, Year 2 | 2,680,781 | 3,161,473
Financing Receivable, Originated, Year 3 | 2,305,870 | 2,651,833
Financing Receivable, Originated, Year 4 | 1,579,560 | 1,788,880
Financing Receivable, Originated, Year 5 | 1,250,651 | 1,356,476
Financing Receivable, Originated, More Than Five Years | 3,124,953 | 3,054,469
Financing Receivable, Revolving | 5,559,595 | 6,108,767
Financing Receivable, Revolving, Converted to Term Loan | 26,080 | 30,159
Total | 20,205,680 | 23,007,520
Commercial [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 2,115,523 | 1,657,760
Financing Receivable, Originated, Year 2 | 1,284,235 | 1,557,142
Financing Receivable, Originated, Year 3 | 1,142,464 | 1,461,282
Financing Receivable, Originated, Year 4 | 995,008 | 1,013,619
Financing Receivable, Originated, Year 5 | 761,286 | 747,318
Financing Receivable, Originated, More Than Five Years | 1,725,540 | 1,603,533
Financing Receivable, Revolving | 4,479,513 | 5,033,683
Financing Receivable, Revolving, Converted to Term Loan | 2,896 | 3,198
Total | 12,506,465 | 13,077,535
Commercial [Member] | Energy [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 263,341 | 157,690
Financing Receivable, Originated, Year 2 | 73,425 | 55,833
Financing Receivable, Originated, Year 3 | 17,099 | 90,799
Financing Receivable, Originated, Year 4 | 14,362 | 7,178
Financing Receivable, Originated, Year 5 | 4,741 | 13,815
Financing Receivable, Originated, More Than Five Years | 8,195 | 29,020
Financing Receivable, Revolving | 2,625,721 | 3,114,859
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 3,006,884 | 3,469,194
Commercial [Member] | Healthcare [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 570,635 | 536,745
Financing Receivable, Originated, Year 2 | 589,193 | 642,739
Financing Receivable, Originated, Year 3 | 559,276 | 639,676
Financing Receivable, Originated, Year 4 | 506,083 | 423,763
Financing Receivable, Originated, Year 5 | 330,231 | 234,531
Financing Receivable, Originated, More Than Five Years | 698,828 | 680,890
Financing Receivable, Revolving | 160,668 | 147,646
Financing Receivable, Revolving, Converted to Term Loan | 26 | 0
Total | 3,414,940 | 3,305,990
Commercial [Member] | Services [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 696,626 | 540,265
Financing Receivable, Originated, Year 2 | 405,992 | 452,269
Financing Receivable, Originated, Year 3 | 295,371 | 399,264
Financing Receivable, Originated, Year 4 | 287,001 | 326,282
Financing Receivable, Originated, Year 5 | 244,397 | 381,902
Financing Receivable, Originated, More Than Five Years | 799,961 | 700,028
Financing Receivable, Revolving | 637,278 | 707,891
Financing Receivable, Revolving, Converted to Term Loan | 567 | 682
Total | 3,367,193 | 3,508,583
Commercial [Member] | General business [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 584,921 | 423,060
Financing Receivable, Originated, Year 2 | 215,625 | 406,301
Financing Receivable, Originated, Year 3 | 270,718 | 331,543
Financing Receivable, Originated, Year 4 | 187,562 | 256,396
Financing Receivable, Originated, Year 5 | 181,917 | 117,070
Financing Receivable, Originated, More Than Five Years | 218,556 | 193,595
Financing Receivable, Revolving | 1,055,846 | 1,063,287
Financing Receivable, Revolving, Converted to Term Loan | 2,303 | 2,516
Total | 2,717,448 | 2,793,768
Commercial real estate [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 717,400 | 725,577
Financing Receivable, Originated, Year 2 | 711,231 | 1,219,638
Financing Receivable, Originated, Year 3 | 879,359 | 954,485
Financing Receivable, Originated, Year 4 | 423,127 | 506,146
Financing Receivable, Originated, Year 5 | 294,436 | 325,092
Financing Receivable, Originated, More Than Five Years | 687,894 | 744,404
Financing Receivable, Revolving | 117,847 | 223,158
Financing Receivable, Revolving, Converted to Term Loan | 31 | 38
Total | 3,831,325 | 4,698,538
Paycheck Protection Program |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 237,357 | 1,682,310
Financing Receivable, Originated, Year 2 | 38,984 | 0
Financing Receivable, Originated, Year 3 | 0 | 0
Financing Receivable, Originated, Year 4 | 0 | 0
Financing Receivable, Originated, Year 5 | 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 | 276,341 | 1,682,310
Loans to individuals [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 607,910 | 789,816
Financing Receivable, Originated, Year 2 | 646,331 | 384,693
Financing Receivable, Originated, Year 3 | 284,047 | 236,066
Financing Receivable, Originated, Year 4 | 161,425 | 269,115
Financing Receivable, Originated, Year 5 | 194,929 | 284,066
Financing Receivable, Originated, More Than Five Years | 711,519 | 706,532
Financing Receivable, Revolving | 962,235 | 851,926
Financing Receivable, Revolving, Converted to Term Loan | 23,153 | 26,923
Total | 3,591,549 | 3,549,137
Loans to individuals [Member] | Residential mortgage [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 387,706 | 565,006
Financing Receivable, Originated, Year 2 | 454,346 | 149,947
Financing Receivable, Originated, Year 3 | 84,540 | 124,678
Financing Receivable, Originated, Year 4 | 62,358 | 125,714
Financing Receivable, Originated, Year 5 | 68,925 | 160,870
Financing Receivable, Originated, More Than Five Years | 318,373 | 371,059
Financing Receivable, Revolving | 323,497 | 340,316
Financing Receivable, Revolving, Converted to Term Loan | 22,425 | 25,413
Total | 1,722,170 | 1,863,003
Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 699 | 4,859
Financing Receivable, Originated, Year 2 | 11,380 | 33,880
Financing Receivable, Originated, Year 3 | 21,909 | 35,009
Financing Receivable, Originated, Year 4 | 28,791 | 43,099
Financing Receivable, Originated, Year 5 | 33,377 | 58,573
Financing Receivable, Originated, More Than Five Years | 258,017 | 233,267
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 354,173 | 408,687
Loans to individuals [Member] | Personal [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 219,505 | 219,951
Financing Receivable, Originated, Year 2 | 180,605 | 200,866
Financing Receivable, Originated, Year 3 | 177,598 | 76,379
Financing Receivable, Originated, Year 4 | 70,276 | 100,302
Financing Receivable, Originated, Year 5 | 92,627 | 64,623
Financing Receivable, Originated, More Than Five Years | 135,129 | 102,206
Financing Receivable, Revolving | 638,738 | 511,610
Financing Receivable, Revolving, Converted to Term Loan | 728 | 1,510
Total | 1,515,206 | 1,277,447
Performing [Member] | Commercial [Member] | Energy [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 252,133 | 112,614
Financing Receivable, Originated, Year 2 | 29,556 | 51,863
Financing Receivable, Originated, Year 3 | 15,914 | 89,346
Financing Receivable, Originated, Year 4 | 13,548 | 7,178
Financing Receivable, Originated, Year 5 | 4,741 | 1,148
Financing Receivable, Originated, More Than Five Years | 6,765 | 7,956
Financing Receivable, Revolving | 2,540,525 | 2,548,663
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 2,863,182 | 2,818,768
Performing [Member] | Commercial [Member] | Energy [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 558 | 0
Financing Receivable, Originated, Year 2 | 771 | 0
Financing Receivable, Originated, Year 3 | 0 | 0
Financing Receivable, Originated, Year 4 | 0 | 0
Financing Receivable, Originated, Year 5 | 0 | 0
Financing Receivable, Originated, More Than Five Years | 0 | 0
Financing Receivable, Revolving | 750 | 202,590
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 2,079 | 202,590
Performing [Member] | Commercial [Member] | Energy [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 10,650 | 24,000
Financing Receivable, Originated, Year 2 | 22,611 | 1,363
Financing Receivable, Originated, Year 3 | 1,185 | 1,453
Financing Receivable, Originated, Year 4 | 814 | 0
Financing Receivable, Originated, Year 5 | 0 | 12,667
Financing Receivable, Originated, More Than Five Years | 716 | 0
Financing Receivable, Revolving | 74,556 | 283,294
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 110,532 | 322,777
Performing [Member] | Commercial [Member] | Healthcare [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 563,800 | 536,745
Financing Receivable, Originated, Year 2 | 589,193 | 615,221
Financing Receivable, Originated, Year 3 | 516,558 | 638,302
Financing Receivable, Originated, Year 4 | 498,998 | 422,834
Financing Receivable, Originated, Year 5 | 319,096 | 234,399
Financing Receivable, Originated, More Than Five Years | 688,136 | 658,286
Financing Receivable, Revolving | 160,154 | 147,132
Financing Receivable, Revolving, Converted to Term Loan | 26 | 0
Total | 3,335,961 | 3,252,919
Performing [Member] | Commercial [Member] | Healthcare [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 6,835 | 0
Financing Receivable, Originated, Year 2 | 0 | 27,500
Financing Receivable, Originated, Year 3 | 15,583 | 0
Financing Receivable, Originated, Year 4 | 0 | 0
Financing Receivable, Originated, Year 5 | 11,135 | 0
Financing Receivable, Originated, More Than Five Years | 0 | 8,282
Financing Receivable, Revolving | 5 | 5
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 33,558 | 35,787
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 2 | 0 | 0
Financing Receivable, Originated, Year 3 | 27,135 | 1,191
Financing Receivable, Originated, Year 4 | 543 | 929
Financing Receivable, Originated, Year 5 | 0 | 132
Financing Receivable, Originated, More Than Five Years | 1,981 | 11,387
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 29,659 | 13,639
Performing [Member] | Commercial [Member] | Services [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 696,149 | 534,853
Financing Receivable, Originated, Year 2 | 405,057 | 436,384
Financing Receivable, Originated, Year 3 | 289,375 | 372,867
Financing Receivable, Originated, Year 4 | 275,010 | 307,374
Financing Receivable, Originated, Year 5 | 225,404 | 373,785
Financing Receivable, Originated, More Than Five Years | 795,029 | 683,936
Financing Receivable, Revolving | 607,958 | 665,491
Financing Receivable, Revolving, Converted to Term Loan | 375 | 682
Total | 3,294,357 | 3,375,372
Performing [Member] | Commercial [Member] | Services [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 434 | 150
Financing Receivable, Originated, Year 2 | 405 | 9,057
Financing Receivable, Originated, Year 3 | 1,830 | 389
Financing Receivable, Originated, Year 4 | 1,047 | 291
Financing Receivable, Originated, Year 5 | 3,290 | 2,038
Financing Receivable, Originated, More Than Five Years | 47 | 2,000
Financing Receivable, Revolving | 17,210 | 3,063
Financing Receivable, Revolving, Converted to Term Loan | 192 | 0
Total | 24,455 | 16,988
Performing [Member] | Commercial [Member] | Services [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 43 | 429
Financing Receivable, Originated, Year 2 | 530 | 6,380
Financing Receivable, Originated, Year 3 | 4,166 | 26,008
Financing Receivable, Originated, Year 4 | 10,714 | 6,027
Financing Receivable, Originated, Year 5 | 1,785 | 5,030
Financing Receivable, Originated, More Than Five Years | 2,366 | 7,954
Financing Receivable, Revolving | 11,607 | 38,797
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 31,211 | 90,625
Performing [Member] | Commercial [Member] | General business [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 584,438 | 419,756
Financing Receivable, Originated, Year 2 | 211,892 | 394,985
Financing Receivable, Originated, Year 3 | 264,462 | 310,273
Financing Receivable, Originated, Year 4 | 177,384 | 236,222
Financing Receivable, Originated, Year 5 | 168,977 | 103,987
Financing Receivable, Originated, More Than Five Years | 215,014 | 186,600
Financing Receivable, Revolving | 1,047,420 | 1,055,878
Financing Receivable, Revolving, Converted to Term Loan | 2,284 | 2,316
Total | 2,671,871 | 2,710,017
Performing [Member] | Commercial [Member] | General business [Member] | Special Mention [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 218 | 197
Financing Receivable, Originated, Year 2 | 223 | 4,519
Financing Receivable, Originated, Year 3 | 60 | 9,713
Financing Receivable, Originated, Year 4 | 1,435 | 7,803
Financing Receivable, Originated, Year 5 | 3,842 | 2,511
Financing Receivable, Originated, More Than Five Years | 0 | 3,159
Financing Receivable, Revolving | 5,875 | 2,483
Financing Receivable, Revolving, Converted to Term Loan | 0 | 19
Total | 11,653 | 30,404
Performing [Member] | Commercial [Member] | General business [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 265 | 1,432
Financing Receivable, Originated, Year 2 | 1,066 | 3,069
Financing Receivable, Originated, Year 3 | 1,634 | 6,694
Financing Receivable, Originated, Year 4 | 7,697 | 10,935
Financing Receivable, Originated, Year 5 | 8,336 | 10,042
Financing Receivable, Originated, More Than Five Years | 3,024 | 3,729
Financing Receivable, Revolving | 1,821 | 4,449
Financing Receivable, Revolving, Converted to Term Loan | 0 | 140
Total | 23,843 | 40,490
Performing [Member] | Commercial real estate [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 717,400 | 725,577
Financing Receivable, Originated, Year 2 | 711,231 | 1,211,338
Financing Receivable, Originated, Year 3 | 871,283 | 954,226
Financing Receivable, Originated, Year 4 | 403,115 | 489,193
Financing Receivable, Originated, Year 5 | 279,058 | 314,899
Financing Receivable, Originated, More Than Five Years | 664,684 | 722,475
Financing Receivable, Revolving | 117,847 | 223,131
Financing Receivable, Revolving, Converted to Term Loan | 31 | 38
Total | 3,764,649 | 4,640,877
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 2 | 0 | 0
Financing Receivable, Originated, Year 3 | 0 | 259
Financing Receivable, Originated, Year 4 | 6,660 | 12,311
Financing Receivable, Originated, Year 5 | 10,898 | 2,725
Financing Receivable, Originated, More Than Five Years | 9,244 | 5,831
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 26,802 | 21,126
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 2 | 0 | 0
Financing Receivable, Originated, Year 3 | 0 | 0
Financing Receivable, Originated, Year 4 | 13,352 | 4,410
Financing Receivable, Originated, Year 5 | 4,480 | 0
Financing Receivable, Originated, More Than Five Years | 7,780 | 4,852
Financing Receivable, Revolving | 0 | 27
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 25,612 | 9,289
Performing [Member] | Paycheck Protection Program | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 237,357 | 1,682,310
Financing Receivable, Originated, Year 2 | 38,984 | 0
Financing Receivable, Originated, Year 3 | 0 | 0
Financing Receivable, Originated, Year 4 | 0 | 0
Financing Receivable, Originated, Year 5 | 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 | 276,341 | 1,682,310
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 386,092 | 564,325
Financing Receivable, Originated, Year 2 | 452,537 | 149,832
Financing Receivable, Originated, Year 3 | 84,001 | 120,875
Financing Receivable, Originated, Year 4 | 60,390 | 124,930
Financing Receivable, Originated, Year 5 | 68,150 | 158,801
Financing Receivable, Originated, More Than Five Years | 295,632 | 348,292
Financing Receivable, Revolving | 320,638 | 335,259
Financing Receivable, Revolving, Converted to Term Loan | 21,463 | 24,553
Total | 1,688,903 | 1,826,867
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 | 33
Financing Receivable, Originated, Year 2 | 0 | 11
Financing Receivable, Originated, Year 3 | 156 | 2,094
Financing Receivable, Originated, Year 4 | 0 | 0
Financing Receivable, Originated, Year 5 | 19 | 59
Financing Receivable, Originated, More Than Five Years | 411 | 318
Financing Receivable, Revolving | 282 | 950
Financing Receivable, Revolving, Converted to Term Loan | 159 | 10
Total | 1,027 | 3,475
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 | 98 | 0
Financing Receivable, Originated, Year 2 | 0 | 0
Financing Receivable, Originated, Year 3 | 0 | 51
Financing Receivable, Originated, Year 4 | 0 | 0
Financing Receivable, Originated, Year 5 | 127 | 0
Financing Receivable, Originated, More Than Five Years | 41 | 34
Financing Receivable, Revolving | 400 | 272
Financing Receivable, Revolving, Converted to Term Loan | 0 | 76
Total | 666 | 433
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 699 | 4,859
Financing Receivable, Originated, Year 2 | 11,380 | 33,880
Financing Receivable, Originated, Year 3 | 20,650 | 34,464
Financing Receivable, Originated, Year 4 | 27,970 | 43,099
Financing Receivable, Originated, Year 5 | 32,742 | 58,264
Financing Receivable, Originated, More Than Five Years | 246,871 | 226,380
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 340,312 | 400,946
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Pass [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 218,960 | 219,873
Financing Receivable, Originated, Year 2 | 180,577 | 200,580
Financing Receivable, Originated, Year 3 | 177,389 | 76,246
Financing Receivable, Originated, Year 4 | 70,249 | 100,229
Financing Receivable, Originated, Year 5 | 92,592 | 64,104
Financing Receivable, Originated, More Than Five Years | 135,041 | 102,126
Financing Receivable, Revolving | 638,713 | 510,571
Financing Receivable, Revolving, Converted to Term Loan | 728 | 1,510
Total | 1,514,249 | 1,275,239
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 | 39
Financing Receivable, Originated, Year 2 | 9 | 55
Financing Receivable, Originated, Year 3 | 34 | 66
Financing Receivable, Originated, Year 4 | 3 | 0
Financing Receivable, Originated, Year 5 | 0 | 469
Financing Receivable, Originated, More Than Five Years | 47 | 31
Financing Receivable, Revolving | 0 | 965
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 93 | 1,625
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Accruing Substandard [Member] |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 435 | 11
Financing Receivable, Originated, Year 2 | 5 | 214
Financing Receivable, Originated, Year 3 | 165 | 10
Financing Receivable, Originated, Year 4 | 0 | 0
Financing Receivable, Originated, Year 5 | 0 | 0
Financing Receivable, Originated, More Than Five Years | 1 | 0
Financing Receivable, Revolving | 0 | 29
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 606 | 264
Nonaccrual [Member] | Commercial [Member] | Energy [Member] | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 21,076
Financing Receivable, Originated, Year 2 | 20,487 | 2,607
Financing Receivable, Originated, Year 3 | 0 | 0
Financing Receivable, Originated, Year 4 | 0 | 0
Financing Receivable, Originated, Year 5 | 0 | 0
Financing Receivable, Originated, More Than Five Years | 714 | 21,064
Financing Receivable, Revolving | 9,890 | 80,312
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 31,091 | 125,059
Nonaccrual [Member] | Commercial [Member] | Healthcare [Member] | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year 2 | 0 | 18
Financing Receivable, Originated, Year 3 | 0 | 183
Financing Receivable, Originated, Year 4 | 6,542 | 0
Financing Receivable, Originated, Year 5 | 0 | 0
Financing Receivable, Originated, More Than Five Years | 8,711 | 2,935
Financing Receivable, Revolving | 509 | 509
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 15,762 | 3,645
Nonaccrual [Member] | Commercial [Member] | Services [Member] | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 4,833
Financing Receivable, Originated, Year 2 | 0 | 448
Financing Receivable, Originated, Year 3 | 0 | 0
Financing Receivable, Originated, Year 4 | 230 | 12,590
Financing Receivable, Originated, Year 5 | 13,918 | 1,049
Financing Receivable, Originated, More Than Five Years | 2,519 | 6,138
Financing Receivable, Revolving | 503 | 540
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 17,170 | 25,598
Nonaccrual [Member] | Commercial [Member] | General business [Member] | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 1,675
Financing Receivable, Originated, Year 2 | 2,444 | 3,728
Financing Receivable, Originated, Year 3 | 4,562 | 4,863
Financing Receivable, Originated, Year 4 | 1,046 | 1,436
Financing Receivable, Originated, Year 5 | 762 | 530
Financing Receivable, Originated, More Than Five Years | 518 | 107
Financing Receivable, Revolving | 730 | 477
Financing Receivable, Revolving, Converted to Term Loan | 19 | 41
Total | 10,081 | 12,857
Nonaccrual [Member] | Commercial real estate [Member] | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year 2 | 0 | 8,300
Financing Receivable, Originated, Year 3 | 8,076 | 0
Financing Receivable, Originated, Year 4 | 0 | 232
Financing Receivable, Originated, Year 5 | 0 | 7,468
Financing Receivable, Originated, More Than Five Years | 6,186 | 11,246
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 14,262 | 27,246
Nonaccrual [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 1,516 | 648
Financing Receivable, Originated, Year 2 | 1,809 | 104
Financing Receivable, Originated, Year 3 | 383 | 1,658
Financing Receivable, Originated, Year 4 | 1,968 | 784
Financing Receivable, Originated, Year 5 | 629 | 2,010
Financing Receivable, Originated, More Than Five Years | 22,289 | 22,415
Financing Receivable, Revolving | 2,177 | 3,835
Financing Receivable, Revolving, Converted to Term Loan | 803 | 774
Total | 31,574 | 32,228
Nonaccrual [Member] | Loans to individuals [Member] | Residential mortgage [Member] | US Government Agency Insured Loans | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 0 | 0
Financing Receivable, Originated, Year 2 | 0 | 0
Financing Receivable, Originated, Year 3 | 1,259 | 545
Financing Receivable, Originated, Year 4 | 821 | 0
Financing Receivable, Originated, Year 5 | 635 | 309
Financing Receivable, Originated, More Than Five Years | 11,146 | 6,887
Financing Receivable, Revolving | 0 | 0
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | 13,861 | 7,741
Nonaccrual [Member] | Loans to individuals [Member] | Personal [Member] | Nonaccrual |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |
Financing Receivable, Originated, Year One | 110 | 28
Financing Receivable, Originated, Year 2 | 14 | 17
Financing Receivable, Originated, Year 3 | 10 | 57
Financing Receivable, Originated, Year 4 | 24 | 73
Financing Receivable, Originated, Year 5 | 35 | 50
Financing Receivable, Originated, More Than Five Years | 40 | 49
Financing Receivable, Revolving | 25 | 45
Financing Receivable, Revolving, Converted to Term Loan | 0 | 0
Total | $ 258 | $ 319

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