XML 50 R41.htm IDEA: XBRL DOCUMENT v3.23.1
Loans and Allowances for Credit Losses, Credit Quality Indicators (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One $ 840,927   $ 4,453,665
Financing Receivable, Originated, Year Two 4,425,700   3,294,886
Financing Receivable, Originated, Year Three 3,248,207   2,107,063
Financing Receivable, Originated, Year Four 2,020,125   1,734,561
Financing Receivable, Originated, Year Five 1,680,558   1,157,972
Financing Receivable, Originated, More Than Five Years 3,868,349   2,992,242
Financing Receivable, Revolving 6,641,089   6,790,248
Financing Receivable, Revolving, Converted to Term Loan 25,098   26,513
Total 22,750,053   22,557,150
Financing Receivable, Allowance for Credit Loss, Writeoff 3,667 $ 7,805  
Commercial [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 698,796   2,655,782
Financing Receivable, Originated, Year Two 2,455,188   1,566,129
Financing Receivable, Originated, Year Three 1,494,936   994,261
Financing Receivable, Originated, Year Four 930,690   838,006
Financing Receivable, Originated, Year Five 775,049   779,311
Financing Receivable, Originated, More Than Five Years 2,279,853   1,657,429
Financing Receivable, Revolving 5,580,003   5,718,433
Financing Receivable, Revolving, Converted to Term Loan 2,834   3,148
Total 14,217,349   14,212,499
Financing Receivable, Allowance for Credit Loss, Writeoff 12 6,081  
Commercial [Member] | Energy [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 12,973   157,745
Financing Receivable Year One Originated Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Two 146,448   76,951
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Three 66,052   30,284
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Four 8,865   13,447
Financing Receivable Year Four Originated Three Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Five 11,959   6,377
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, More Than Five Years 12,595   5,822
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Revolving 3,139,165   3,134,164
Financing Receivable Revolving Writeoff 0    
Financing Receivable, Revolving, Converted to Term Loan 0   0
Financing Receivable Revolving Converted to Term Writeoff 0    
Total 3,398,057   3,424,790
Financing Receivable, Allowance for Credit Loss, Writeoff 0    
Commercial [Member] | Healthcare [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 175,703   932,097
Financing Receivable Year One Originated Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Two 876,440   604,886
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Three 615,847   476,854
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Four 482,182   450,755
Financing Receivable Year Four Originated Three Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Five 436,197   471,362
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, More Than Five Years 1,091,901   659,507
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Revolving 221,052   249,536
Financing Receivable Revolving Writeoff 0    
Financing Receivable, Revolving, Converted to Term Loan 19   20
Financing Receivable Revolving Converted to Term Writeoff 0    
Total 3,899,341   3,845,017
Financing Receivable, Allowance for Credit Loss, Writeoff 0    
Commercial [Member] | Services [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 216,237   822,287
Financing Receivable Year One Originated Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Two 778,794   507,219
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Three 477,545   287,523
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Four 275,660   196,711
Financing Receivable Year Four Originated Three Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Five 174,808   157,673
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, More Than Five Years 810,360   702,823
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Revolving 829,708   756,524
Financing Receivable Revolving Writeoff 5    
Financing Receivable, Revolving, Converted to Term Loan 590   761
Financing Receivable Revolving Converted to Term Writeoff 0    
Total 3,563,702   3,431,521
Financing Receivable, Allowance for Credit Loss, Writeoff 5    
Commercial [Member] | General business [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 293,883   743,653
Financing Receivable Year One Originated Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Two 653,506   377,073
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Three 335,492   199,600
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Four 163,983   177,093
Financing Receivable Year Four Originated Three Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Five 152,085   143,899
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, More Than Five Years 364,997   289,277
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff 3    
Financing Receivable, Revolving 1,390,078   1,578,209
Financing Receivable Revolving Writeoff 0    
Financing Receivable, Revolving, Converted to Term Loan 2,225   2,367
Financing Receivable Revolving Converted to Term Writeoff 4    
Total 3,356,249   3,511,171
Financing Receivable, Allowance for Credit Loss, Writeoff 7    
Commercial real estate [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 46,900   1,188,483
Financing Receivable Year One Originated Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Two 1,383,300   1,158,002
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Three 1,187,644   552,616
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Four 540,129   648,561
Financing Receivable Year Four Originated Three Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Five 651,970   247,625
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, More Than Five Years 857,310   649,874
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff 2,208    
Financing Receivable, Revolving 148,063   161,616
Financing Receivable Revolving Writeoff 0    
Financing Receivable, Revolving, Converted to Term Loan 0   0
Financing Receivable Revolving Converted to Term Writeoff 0    
Total 4,815,316   4,606,777
Financing Receivable, Allowance for Credit Loss, Writeoff 2,208 191  
Loans to individuals [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 95,231   609,400
Financing Receivable, Originated, Year Two 587,212   570,755
Financing Receivable, Originated, Year Three 565,627   560,186
Financing Receivable, Originated, Year Four 549,306   247,994
Financing Receivable, Originated, Year Five 253,539   131,036
Financing Receivable, Originated, More Than Five Years 731,186   684,939
Financing Receivable, Revolving 913,023   910,199
Financing Receivable, Revolving, Converted to Term Loan 22,264   23,365
Total 3,717,388   3,737,874
Financing Receivable, Allowance for Credit Loss, Writeoff 1,447 $ 1,533  
Loans to individuals [Member] | Residential mortgage [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 71,000   354,529
Financing Receivable Year One Originated Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Two 349,949   374,927
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Three 372,782   395,948
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Four 385,114   63,504
Financing Receivable Year Four Originated Three Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Five 62,058   42,571
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, More Than Five Years 306,740   281,290
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff 4    
Financing Receivable, Revolving 356,412   354,986
Financing Receivable Revolving Writeoff 0    
Financing Receivable, Revolving, Converted to Term Loan 21,972   23,029
Financing Receivable Revolving Converted to Term Writeoff 1    
Total 1,926,027   1,890,784
Financing Receivable, Allowance for Credit Loss, Writeoff 5    
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   289
Financing Receivable, Originated, Year Two 1,021   2,254
Financing Receivable, Originated, Year Three 2,321   9,299
Financing Receivable, Originated, Year Four 7,620   12,182
Financing Receivable, Originated, Year Five 9,968   19,563
Financing Receivable, Originated, More Than Five Years 203,823   202,353
Financing Receivable, Revolving 0   0
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 224,753   245,940
Loans to individuals [Member] | Personal [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 24,231   254,582
Financing Receivable Year One Originated Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Two 236,242   193,574
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Three 190,524   154,939
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Four 156,572   172,308
Financing Receivable Year Four Originated Three Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, Year Five 181,513   68,902
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff 0    
Financing Receivable, Originated, More Than Five Years 220,623   201,296
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff 1,437    
Financing Receivable, Revolving 556,611   555,213
Financing Receivable Revolving Writeoff 1    
Financing Receivable, Revolving, Converted to Term Loan 292   336
Financing Receivable Revolving Converted to Term Writeoff 4    
Total 1,566,608   1,601,150
Financing Receivable, Allowance for Credit Loss, Writeoff 1,442    
Performing [Member] | Commercial [Member] | Energy [Member] | Pass [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 12,973   157,745
Financing Receivable, Originated, Year Two 146,448   76,951
Financing Receivable, Originated, Year Three 66,052   30,284
Financing Receivable, Originated, Year Four 8,865   12,783
Financing Receivable, Originated, Year Five 11,301   5,992
Financing Receivable, Originated, More Than Five Years 11,408   4,980
Financing Receivable, Revolving 3,119,103   3,104,906
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 3,376,150   3,393,641
Performing [Member] | Commercial [Member] | Energy [Member] | Special Mention [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One     0
Financing Receivable, Originated, Year Two     0
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     0
Financing Receivable, Revolving, Converted to Term Loan     0
Total     0
Performing [Member] | Commercial [Member] | Energy [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   664
Financing Receivable, Originated, Year Five 658   385
Financing Receivable, Originated, More Than Five Years 1,060   683
Financing Receivable, Revolving 20,062   28,018
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 21,780   29,750
Performing [Member] | Commercial [Member] | Healthcare [Member] | Pass [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 175,703   932,097
Financing Receivable, Originated, Year Two 876,440   604,886
Financing Receivable, Originated, Year Three 615,643   476,854
Financing Receivable, Originated, Year Four 479,575   404,204
Financing Receivable, Originated, Year Five 386,837   464,989
Financing Receivable, Originated, More Than Five Years 1,027,229   618,163
Financing Receivable, Revolving 220,992   245,898
Financing Receivable, Revolving, Converted to Term Loan 19   20
Total 3,782,438   3,747,111
Performing [Member] | Commercial [Member] | Healthcare [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 204   0
Financing Receivable, Originated, Year Four 429   20,071
Financing Receivable, Originated, Year Five 21,767   0
Financing Receivable, Originated, More Than Five Years 45,663   18,859
Financing Receivable, Revolving 60   4
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 68,123   38,934
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   0
Financing Receivable, Originated, Year Four 2,178   0
Financing Receivable, Originated, Year Five 1,456   0
Financing Receivable, Originated, More Than Five Years 7,899   14,304
Financing Receivable, Revolving 0   3,634
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 11,533   17,938
Performing [Member] | Commercial [Member] | Services [Member] | Pass [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 216,237   821,785
Financing Receivable, Originated, Year Two 759,320   496,510
Financing Receivable, Originated, Year Three 470,813   286,085
Financing Receivable, Originated, Year Four 275,065   193,481
Financing Receivable, Originated, Year Five 171,904   156,736
Financing Receivable, Originated, More Than Five Years 805,240   696,300
Financing Receivable, Revolving 799,522   722,371
Financing Receivable, Revolving, Converted to Term Loan 506   639
Total 3,498,607   3,373,907
Performing [Member] | Commercial [Member] | Services [Member] | Special Mention [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 0   502
Financing Receivable, Originated, Year Two 19,077   5,139
Financing Receivable, Originated, Year Three 1,365   989
Financing Receivable, Originated, Year Four 219   771
Financing Receivable, Originated, Year Five 672   894
Financing Receivable, Originated, More Than Five Years 2,521   1,345
Financing Receivable, Revolving 6,246   8,668
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 30,100   18,308
Performing [Member] | Commercial [Member] | Services [Member] | Accruing Substandard [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 0   0
Financing Receivable, Originated, Year Two 397   0
Financing Receivable, Originated, Year Three 86   0
Financing Receivable, Originated, Year Four 0   2,459
Financing Receivable, Originated, Year Five 2,232   43
Financing Receivable, Originated, More Than Five Years 2,599   2,789
Financing Receivable, Revolving 21,499   17,665
Financing Receivable, Revolving, Converted to Term Loan 84   122
Total 26,897   23,078
Performing [Member] | Commercial [Member] | General business [Member] | Pass [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 288,367   725,894
Financing Receivable, Originated, Year Two 607,548   361,839
Financing Receivable, Originated, Year Three 320,451   198,274
Financing Receivable, Originated, Year Four 162,810   172,878
Financing Receivable, Originated, Year Five 147,988   139,140
Financing Receivable, Originated, More Than Five Years 355,227   283,694
Financing Receivable, Revolving 1,336,404   1,570,536
Financing Receivable, Revolving, Converted to Term Loan 2,193   2,329
Total 3,220,988   3,454,584
Performing [Member] | Commercial [Member] | General business [Member] | Special Mention [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 0   17,759
Financing Receivable, Originated, Year Two 7,515   13,065
Financing Receivable, Originated, Year Three 8,200   208
Financing Receivable, Originated, Year Four 87   71
Financing Receivable, Originated, Year Five 70   7
Financing Receivable, Originated, More Than Five Years 1,762   2,291
Financing Receivable, Revolving 31,903   7,094
Financing Receivable, Revolving, Converted to Term Loan 25   26
Total 49,562   40,521
Performing [Member] | Commercial [Member] | General business [Member] | Accruing Substandard [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 5,516   0
Financing Receivable, Originated, Year Two 38,443   2,169
Financing Receivable, Originated, Year Three 6,841   66
Financing Receivable, Originated, Year Four 56   4,130
Financing Receivable, Originated, Year Five 4,013   4,680
Financing Receivable, Originated, More Than Five Years 7,940   3,287
Financing Receivable, Revolving 13,929   94
Financing Receivable, Revolving, Converted to Term Loan 0   4
Total 76,738   14,430
Performing [Member] | Commercial real estate [Member] | Pass [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 46,900   1,188,483
Financing Receivable, Originated, Year Two 1,383,300   1,158,002
Financing Receivable, Originated, Year Three 1,187,644   552,616
Financing Receivable, Originated, Year Four 540,129   641,102
Financing Receivable, Originated, Year Five 644,511   247,625
Financing Receivable, Originated, More Than Five Years 832,101   633,304
Financing Receivable, Revolving 148,063   161,616
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 4,782,648   4,582,748
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   0
Financing Receivable, Originated, Year Five 0   0
Financing Receivable, Originated, More Than Five Years 11,000   0
Financing Receivable, Revolving 0   0
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 11,000   0
Performing [Member] | Commercial real estate [Member] | Accruing Substandard [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One     0
Financing Receivable, Originated, Year Two     0
Financing Receivable, Originated, Year Three     0
Financing Receivable, Originated, Year Four     7,459
Financing Receivable, Originated, Year Five     0
Financing Receivable, Originated, More Than Five Years     0
Financing Receivable, Revolving     0
Financing Receivable, Revolving, Converted to Term Loan     0
Total     7,459
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Pass [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 71,000   354,497
Financing Receivable, Originated, Year Two 348,697   373,190
Financing Receivable, Originated, Year Three 371,044   393,002
Financing Receivable, Originated, Year Four 380,908   63,142
Financing Receivable, Originated, Year Five 61,409   40,525
Financing Receivable, Originated, More Than Five Years 285,877   260,625
Financing Receivable, Revolving 351,428   352,126
Financing Receivable, Revolving, Converted to Term Loan 21,242   22,176
Total 1,891,605   1,859,283
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 68   81
Financing Receivable, Originated, Year Three 0   42
Financing Receivable, Originated, Year Four 1,355   0
Financing Receivable, Originated, Year Five 0   142
Financing Receivable, Originated, More Than Five Years 309   388
Financing Receivable, Revolving 2,843   527
Financing Receivable, Revolving, Converted to Term Loan 0   87
Total 4,575   1,267
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   0
Financing Receivable, Originated, Year Two 0   0
Financing Receivable, Originated, Year Three 0   187
Financing Receivable, Originated, Year Four 0   0
Financing Receivable, Originated, Year Five 0   0
Financing Receivable, Originated, More Than Five Years 7   138
Financing Receivable, Revolving 147   117
Financing Receivable, Revolving, Converted to Term Loan 0   1
Total 154   443
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   289
Financing Receivable, Originated, Year Two 1,021   2,254
Financing Receivable, Originated, Year Three 2,321   9,000
Financing Receivable, Originated, Year Four 7,321   10,722
Financing Receivable, Originated, Year Five 8,963   17,244
Financing Receivable, Originated, More Than Five Years 190,825   191,426
Financing Receivable, Revolving 0   0
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 210,451   230,935
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Pass [Member]      
Financing Receivable, Credit Quality Indicator Line Items [Abstract]      
Financing Receivable, Originated, Year One 24,231   254,497
Financing Receivable, Originated, Year Two 236,041   193,095
Financing Receivable, Originated, Year Three 190,370   154,887
Financing Receivable, Originated, Year Four 156,515   172,114
Financing Receivable, Originated, Year Five 181,332   68,871
Financing Receivable, Originated, More Than Five Years 220,604   201,278
Financing Receivable, Revolving 550,478   549,187
Financing Receivable, Revolving, Converted to Term Loan 253   332
Total 1,559,824   1,594,261
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   47
Financing Receivable, Originated, Year Two 115   28
Financing Receivable, Originated, Year Three 109   40
Financing Receivable, Originated, Year Four 47   12
Financing Receivable, Originated, Year Five 2   17
Financing Receivable, Originated, More Than Five Years 0   0
Financing Receivable, Revolving 6,055   6,003
Financing Receivable, Revolving, Converted to Term Loan 39   4
Total 6,367   6,151
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   0
Financing Receivable, Originated, Year Two 17   444
Financing Receivable, Originated, Year Three 40   0
Financing Receivable, Originated, Year Four 0   160
Financing Receivable, Originated, Year Five 160   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 217   604
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   0
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 127   159
Financing Receivable, Revolving 0   1,240
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 127   1,399
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   26,480
Financing Receivable, Originated, Year Five 26,137   6,373
Financing Receivable, Originated, More Than Five Years 11,110   8,181
Financing Receivable, Revolving 0   0
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 37,247   41,034
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   5,570
Financing Receivable, Originated, Year Three 5,281   449
Financing Receivable, Originated, Year Four 376   0
Financing Receivable, Originated, Year Five 0   0
Financing Receivable, Originated, More Than Five Years 0   2,389
Financing Receivable, Revolving 2,441   7,820
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 8,098   16,228
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   0
Financing Receivable, Originated, Year Three 0   1,052
Financing Receivable, Originated, Year Four 1,030   14
Financing Receivable, Originated, Year Five 14   72
Financing Receivable, Originated, More Than Five Years 68   5
Financing Receivable, Revolving 7,842   485
Financing Receivable, Revolving, Converted to Term Loan 7   8
Total 8,961   1,636
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   0
Financing Receivable, Originated, Year Four 0   0
Financing Receivable, Originated, Year Five 7,459   0
Financing Receivable, Originated, More Than Five Years 14,209   16,570
Financing Receivable, Revolving 0   0
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 21,668   16,570
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 0   32
Financing Receivable, Originated, Year Two 1,184   1,656
Financing Receivable, Originated, Year Three 1,738   2,717
Financing Receivable, Originated, Year Four 2,851   362
Financing Receivable, Originated, Year Five 649   1,904
Financing Receivable, Originated, More Than Five Years 20,547   20,139
Financing Receivable, Revolving 1,994   2,216
Financing Receivable, Revolving, Converted to Term Loan 730   765
Total 29,693   29,791
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   299
Financing Receivable, Originated, Year Four 299   1,460
Financing Receivable, Originated, Year Five 1,005   2,319
Financing Receivable, Originated, More Than Five Years 12,998   10,927
Financing Receivable, Revolving 0   0
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total 14,302   15,005
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   38
Financing Receivable, Originated, Year Two 69   7
Financing Receivable, Originated, Year Three 5   12
Financing Receivable, Originated, Year Four 10   22
Financing Receivable, Originated, Year Five 19   14
Financing Receivable, Originated, More Than Five Years 19   18
Financing Receivable, Revolving 78   23
Financing Receivable, Revolving, Converted to Term Loan 0   0
Total $ 200   $ 134