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Loans and Allowances for Credit Losses, Credit Quality Indicators (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024 | Dec. 31, 2024
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | $ 3,459,668 |  | $ 3,459,668 |  |  | $ 3,279,975 |
Financing Receivable, Originated, Year Two | 3,027,042 |  | 3,027,042 |  |  | 2,873,863 |
Financing Receivable, Originated, Year Three | 2,601,810 |  | 2,601,810 |  |  | 4,270,179 |
Financing Receivable, Originated, Year Four | 3,745,167 |  | 3,745,167 |  |  | 2,359,227 |
Financing Receivable, Originated, Year Five | 2,062,017 |  | 2,062,017 |  |  | 1,369,849 |
Financing Receivable, Originated, More Than Five Years | 3,575,601 |  | 3,575,601 |  |  | 2,993,779 |
Financing Receivable, Revolving | 6,364,346 |  | 6,364,346 |  |  | 6,938,929 |
Financing Receivable, Revolving, Converted to Term Loan | 29,543 |  | 29,543 |  |  | 28,923 |
Loans | 24,865,194 |  | 24,865,194 |  |  | 24,114,724 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 4,348 | $ 2,496 | 7,952 |  | $ 17,496 |  |
Commercial [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 1,900,068 |  | 1,900,068 |  |  | 2,067,074 |
Financing Receivable, Originated, Year Two | 1,543,671 |  | 1,543,671 |  |  | 1,866,895 |
Financing Receivable, Originated, Year Three | 1,573,854 |  | 1,573,854 |  |  | 1,751,617 |
Financing Receivable, Originated, Year Four | 1,423,018 |  | 1,423,018 |  |  | 1,095,279 |
Financing Receivable, Originated, Year Five | 912,677 |  | 912,677 |  |  | 709,743 |
Financing Receivable, Originated, More Than Five Years | 1,841,048 |  | 1,841,048 |  |  | 1,653,117 |
Financing Receivable, Revolving | 5,316,702 |  | 5,316,702 |  |  | 5,883,625 |
Financing Receivable, Revolving, Converted to Term Loan | 1,902 |  | 1,902 |  |  | 2,786 |
Loans | 14,512,940 |  | 14,512,940 |  |  | 15,030,136 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 3,157 | 856 | 4,277 |  | 11,487 |  |
Commercial [Member] | Healthcare [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 633,845 |  | 633,845 |  |  | 539,305 |
Financing Receivable Year One Originated Current Fiscal Year Writeoff |  |  |  |  |  | 0 |
Financing Receivable, Originated, Year Two | 501,857 |  | 501,857 |  |  | 597,283 |
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff |  |  |  |  |  | 0 |
Financing Receivable, Originated, Year Three | 523,869 |  | 523,869 |  |  | 966,286 |
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff |  |  |  |  |  | 0 |
Financing Receivable, Originated, Year Four | 773,255 |  | 773,255 |  |  | 497,918 |
Financing Receivable, Originated, Year Four |  |  |  |  |  | 0 |
Financing Receivable, Originated, Year Five | 457,872 |  | 457,872 |  |  | 395,743 |
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff |  |  |  |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 798,955 |  | 798,955 |  |  | 719,305 |
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff |  |  |  |  |  | 7,240 |
Financing Receivable, Revolving | 188,879 |  | 188,879 |  |  | 251,683 |
Financing Receivable Revolving Writeoff |  |  |  |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 11 |  | 11 |  |  | 10 |
Financing Receivable Revolving Converted to Term Writeoff |  |  |  |  |  | 0 |
Loans | 3,878,543 |  | 3,878,543 |  |  | 3,967,533 |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  |  |  |  | 7,240 |
Commercial [Member] | Services [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 426,945 |  | 426,945 |  |  | 629,978 |
Financing Receivable Year One Originated Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Two | 498,969 |  | 498,969 |  |  | 629,968 |
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Three | 574,346 |  | 574,346 |  |  | 431,168 |
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Four | 394,828 |  | 394,828 |  |  | 406,506 |
Financing Receivable, Originated, Year Four |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 294,043 |  | 294,043 |  |  | 188,541 |
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 22 |
Financing Receivable, Originated, More Than Five Years | 674,672 |  | 674,672 |  |  | 590,321 |
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 80 |
Financing Receivable, Revolving | 846,677 |  | 846,677 |  |  | 765,942 |
Financing Receivable Revolving Writeoff |  |  | 3,242 |  |  | 9 |
Financing Receivable, Revolving, Converted to Term Loan | 163 |  | 163 |  |  | 779 |
Financing Receivable Revolving Converted to Term Writeoff |  |  | 21 |  |  | 0 |
Loans | 3,710,643 |  | 3,710,643 |  |  | 3,643,203 |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | 3,263 |  |  | 111 |
Commercial [Member] | Energy [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 125,265 |  | 125,265 |  |  | 148,972 |
Financing Receivable Year One Originated Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Two | 70,851 |  | 70,851 |  |  | 46,094 |
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Three | 46,400 |  | 46,400 |  |  | 39,050 |
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Four | 10,977 |  | 10,977 |  |  | 2,621 |
Financing Receivable, Originated, Year Four |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 2,383 |  | 2,383 |  |  | 6,488 |
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 21,266 |  | 21,266 |  |  | 17,038 |
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Revolving | 2,404,370 |  | 2,404,370 |  |  | 2,994,461 |
Financing Receivable Revolving Writeoff |  |  | 94 |  |  | 226 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Financing Receivable Revolving Converted to Term Writeoff |  |  | 0 |  |  | 0 |
Loans | 2,681,512 |  | 2,681,512 |  |  | 3,254,724 |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | 94 |  |  | 226 |
Commercial [Member] | General business [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 714,013 |  | 714,013 |  |  | 748,819 |
Financing Receivable Year One Originated Current Fiscal Year Writeoff |  |  | 8 |  |  | 0 |
Financing Receivable, Originated, Year Two | 471,994 |  | 471,994 |  |  | 593,550 |
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 27 |
Financing Receivable, Originated, Year Three | 429,239 |  | 429,239 |  |  | 315,113 |
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff |  |  | 132 |  |  | 1,465 |
Financing Receivable, Originated, Year Four | 243,958 |  | 243,958 |  |  | 188,234 |
Financing Receivable, Originated, Year Four |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 158,379 |  | 158,379 |  |  | 118,971 |
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 346,155 |  | 346,155 |  |  | 326,453 |
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 166 |
Financing Receivable, Revolving | 1,876,776 |  | 1,876,776 |  |  | 1,871,539 |
Financing Receivable Revolving Writeoff |  |  | 751 |  |  | 2,425 |
Financing Receivable, Revolving, Converted to Term Loan | 1,728 |  | 1,728 |  |  | 1,997 |
Financing Receivable Revolving Converted to Term Writeoff |  |  | 29 |  |  | 103 |
Loans | 4,242,242 |  | 4,242,242 |  |  | 4,164,676 |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | 920 |  |  | 4,186 |
Commercial real estate [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 738,423 |  | 738,423 |  |  | 436,206 |
Financing Receivable Year One Originated Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Two | 815,757 |  | 815,757 |  |  | 512,927 |
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Three | 531,581 |  | 531,581 |  |  | 2,056,446 |
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Four | 1,903,968 |  | 1,903,968 |  |  | 825,292 |
Financing Receivable, Originated, Year Four |  |  | 126 |  |  | 0 |
Financing Receivable, Originated, Year Five | 754,989 |  | 754,989 |  |  | 233,619 |
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 903,514 |  | 903,514 |  |  | 852,655 |
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 1,455 |
Financing Receivable, Revolving | 104,375 |  | 104,375 |  |  | 141,307 |
Financing Receivable Revolving Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Financing Receivable Revolving Converted to Term Writeoff |  |  | 0 |  |  | 0 |
Loans | 5,752,607 |  | 5,752,607 |  |  | 5,058,452 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 0 | 0 | 126 |  | 1,455 | 1,455 |
Loans to individuals [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 821,177 |  | 821,177 |  |  | 776,695 |
Financing Receivable, Originated, Year Two | 667,614 |  | 667,614 |  |  | 494,041 |
Financing Receivable, Originated, Year Three | 496,375 |  | 496,375 |  |  | 462,116 |
Financing Receivable, Originated, Year Four | 418,181 |  | 418,181 |  |  | 438,656 |
Financing Receivable, Originated, Year Five | 394,351 |  | 394,351 |  |  | 426,487 |
Financing Receivable, Originated, More Than Five Years | 831,039 |  | 831,039 |  |  | 488,007 |
Financing Receivable, Revolving | 943,269 |  | 943,269 |  |  | 913,997 |
Financing Receivable, Revolving, Converted to Term Loan | 27,641 |  | 27,641 |  |  | 26,137 |
Loans | 4,599,647 |  | 4,599,647 |  |  | 4,026,136 |
Financing Receivable, Allowance for Credit Loss, Writeoff | 1,191 | $ 1,640 | 3,549 |  | $ 4,554 |  |
Loans to individuals [Member] | Residential mortgage [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 446,494 |  | 446,494 |  |  | 530,431 |
Financing Receivable Year One Originated Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Two | 432,258 |  | 432,258 |  |  | 340,112 |
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 43 |
Financing Receivable, Originated, Year Three | 285,602 |  | 285,602 |  |  | 288,166 |
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff |  |  | 48 |  |  | 0 |
Financing Receivable, Originated, Year Four | 261,585 |  | 261,585 |  |  | 319,676 |
Financing Receivable, Originated, Year Four |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 289,058 |  | 289,058 |  |  | 315,397 |
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff |  |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 487,533 |  | 487,533 |  |  | 217,829 |
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff |  |  | 56 |  |  | 18 |
Financing Receivable, Revolving | 446,539 |  | 446,539 |  |  | 401,829 |
Financing Receivable Revolving Writeoff |  |  | 178 |  |  | 10 |
Financing Receivable, Revolving, Converted to Term Loan | 27,297 |  | 27,297 |  |  | 23,518 |
Financing Receivable Revolving Converted to Term Writeoff |  |  | 0 |  |  | 0 |
Loans | 2,676,366 |  | 2,676,366 |  |  | 2,436,958 |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | 282 |  |  | 71 |
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 |  | 0 |  |  | 462 |
Financing Receivable, Originated, Year Two | 2,504 |  | 2,504 |  |  | 4,337 |
Financing Receivable, Originated, Year Three | 7,145 |  | 7,145 |  |  | 6,618 |
Financing Receivable, Originated, Year Four | 8,339 |  | 8,339 |  |  | 2,432 |
Financing Receivable, Originated, Year Five | 3,512 |  | 3,512 |  |  | 3,786 |
Financing Receivable, Originated, More Than Five Years | 130,142 |  | 130,142 |  |  | 119,014 |
Financing Receivable, Revolving | 0 |  | 0 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 151,642 |  | 151,642 |  |  | 136,649 |
Loans to individuals [Member] | Personal [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 374,683 |  | 374,683 |  |  | 245,802 |
Financing Receivable Year One Originated Current Fiscal Year Writeoff |  |  | 3,130 | [1] |  | 5,269 | [2]
Financing Receivable, Originated, Year Two | 232,852 |  | 232,852 |  |  | 149,592 |
Financing Receivable Year Two Originated Fiscal Year Before Current Fiscal Year Writeoff |  |  | 66 | [1] |  | 69 | [2]
Financing Receivable, Originated, Year Three | 203,628 |  | 203,628 |  |  | 167,332 |
Financing Receivable Year Three Originated Two Years Before Current Fiscal Year Writeoff |  |  | 22 | [1] |  | 101 | [2]
Financing Receivable, Originated, Year Four | 148,257 |  | 148,257 |  |  | 116,548 |
Financing Receivable, Originated, Year Four |  |  | 19 | [1] |  | 52 | [2]
Financing Receivable, Originated, Year Five | 101,781 |  | 101,781 |  |  | 107,304 |
Financing Receivable Year Five Originated Four Years Before Current Fiscal Year Writeoff |  |  | 0 | [1] |  | 9 | [2]
Financing Receivable, Originated, More Than Five Years | 213,364 |  | 213,364 |  |  | 151,164 |
Financing Receivable Originated More than Five Years Before Current Fiscal Year Writeoff |  |  | 5 | [1] |  | 0 | [2]
Financing Receivable, Revolving | 496,730 |  | 496,730 |  |  | 512,168 |
Financing Receivable Revolving Writeoff |  |  | 25 | [1] |  | 26 | [2]
Financing Receivable, Revolving, Converted to Term Loan | 344 |  | 344 |  |  | 2,619 |
Financing Receivable Revolving Converted to Term Writeoff |  |  | 0 | [1] |  | 20 | [2]
Loans | 1,771,639 |  | 1,771,639 |  |  | 1,452,529 |
Financing Receivable, Allowance for Credit Loss, Writeoff |  |  | 3,267 | [1] |  | 5,546 | [2]
Performing [Member] | Commercial [Member] | Healthcare [Member] | Pass [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 633,845 |  | 633,845 |  |  | 539,305 |
Financing Receivable, Originated, Year Two | 492,224 |  | 492,224 |  |  | 544,103 |
Financing Receivable, Originated, Year Three | 471,134 |  | 471,134 |  |  | 896,042 |
Financing Receivable, Originated, Year Four | 725,177 |  | 725,177 |  |  | 481,816 |
Financing Receivable, Originated, Year Five | 452,204 |  | 452,204 |  |  | 344,609 |
Financing Receivable, Originated, More Than Five Years | 701,112 |  | 701,112 |  |  | 644,441 |
Financing Receivable, Revolving | 182,468 |  | 182,468 |  |  | 249,793 |
Financing Receivable, Revolving, Converted to Term Loan | 11 |  | 11 |  |  | 10 |
Loans | 3,658,175 |  | 3,658,175 |  |  | 3,700,119 |
Performing [Member] | Commercial [Member] | Healthcare [Member] | Special Mention [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Two | 0 |  | 0 |  |  | 15,000 |
Financing Receivable, Originated, Year Three | 0 |  | 0 |  |  | 64,895 |
Financing Receivable, Originated, Year Four | 43,817 |  | 43,817 |  |  | 110 |
Financing Receivable, Originated, Year Five | 99 |  | 99 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 0 |  | 0 |  |  | 32,555 |
Financing Receivable, Revolving | 215 |  | 215 |  |  | 255 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 44,131 |  | 44,131 |  |  | 112,815 |
Performing [Member] | Commercial [Member] | Healthcare [Member] | Accruing Substandard [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Two | 9,633 |  | 9,633 |  |  | 38,180 |
Financing Receivable, Originated, Year Three | 37,655 |  | 37,655 |  |  | 5,253 |
Financing Receivable, Originated, Year Four | 4,178 |  | 4,178 |  |  | 15,529 |
Financing Receivable, Originated, Year Five | 5,192 |  | 5,192 |  |  | 51,134 |
Financing Receivable, Originated, More Than Five Years | 89,055 |  | 89,055 |  |  | 29,151 |
Financing Receivable, Revolving | 6,017 |  | 6,017 |  |  | 1,635 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 151,730 |  | 151,730 |  |  | 140,882 |
Performing [Member] | Commercial [Member] | Services [Member] | Pass [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 421,853 |  | 421,853 |  |  | 629,978 |
Financing Receivable, Originated, Year Two | 497,289 |  | 497,289 |  |  | 625,969 |
Financing Receivable, Originated, Year Three | 563,115 |  | 563,115 |  |  | 422,015 |
Financing Receivable, Originated, Year Four | 390,330 |  | 390,330 |  |  | 404,949 |
Financing Receivable, Originated, Year Five | 291,597 |  | 291,597 |  |  | 187,324 |
Financing Receivable, Originated, More Than Five Years | 650,606 |  | 650,606 |  |  | 570,775 |
Financing Receivable, Revolving | 838,852 |  | 838,852 |  |  | 745,853 |
Financing Receivable, Revolving, Converted to Term Loan | 163 |  | 163 |  |  | 379 |
Loans | 3,653,805 |  | 3,653,805 |  |  | 3,587,242 |
Performing [Member] | Commercial [Member] | Services [Member] | Special Mention [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 57 |  | 57 |  |  | 0 |
Financing Receivable, Originated, Year Two | 1,425 |  | 1,425 |  |  | 3,324 |
Financing Receivable, Originated, Year Three | 389 |  | 389 |  |  | 123 |
Financing Receivable, Originated, Year Four | 2,179 |  | 2,179 |  |  | 1,537 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 15,991 |  | 15,991 |  |  | 11,796 |
Financing Receivable, Revolving | 1,356 |  | 1,356 |  |  | 17,923 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 21,397 |  | 21,397 |  |  | 34,703 |
Performing [Member] | Commercial [Member] | Services [Member] | Accruing Substandard [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 4,621 |  | 4,621 |  |  | 0 |
Financing Receivable, Originated, Year Two | 226 |  | 226 |  |  | 675 |
Financing Receivable, Originated, Year Three | 10,800 |  | 10,800 |  |  | 9,030 |
Financing Receivable, Originated, Year Four | 1,440 |  | 1,440 |  |  | 20 |
Financing Receivable, Originated, Year Five | 2,263 |  | 2,263 |  |  | 1,217 |
Financing Receivable, Originated, More Than Five Years | 7,929 |  | 7,929 |  |  | 7,750 |
Financing Receivable, Revolving | 515 |  | 515 |  |  | 1,399 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 400 |
Loans | 27,794 |  | 27,794 |  |  | 20,491 |
Performing [Member] | Commercial [Member] | Energy [Member] | Pass [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 125,265 |  | 125,265 |  |  | 148,972 |
Financing Receivable, Originated, Year Two | 70,851 |  | 70,851 |  |  | 46,094 |
Financing Receivable, Originated, Year Three | 46,400 |  | 46,400 |  |  | 39,050 |
Financing Receivable, Originated, Year Four | 10,977 |  | 10,977 |  |  | 2,621 |
Financing Receivable, Originated, Year Five | 2,383 |  | 2,383 |  |  | 6,488 |
Financing Receivable, Originated, More Than Five Years | 21,235 |  | 21,235 |  |  | 16,989 |
Financing Receivable, Revolving | 2,382,659 |  | 2,382,659 |  |  | 2,985,161 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 2,659,770 |  | 2,659,770 |  |  | 3,245,375 |
Performing [Member] | Commercial [Member] | Energy [Member] | Accruing Substandard [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Two | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Three | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Four | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 0 |  | 0 |  |  | 0 |
Financing Receivable, Revolving | 21,711 |  | 21,711 |  |  | 9,300 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 21,711 |  | 21,711 |  |  | 9,300 |
Performing [Member] | Commercial [Member] | General business [Member] | Pass [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 709,654 |  | 709,654 |  |  | 740,440 |
Financing Receivable, Originated, Year Two | 464,843 |  | 464,843 |  |  | 571,897 |
Financing Receivable, Originated, Year Three | 420,590 |  | 420,590 |  |  | 267,528 |
Financing Receivable, Originated, Year Four | 207,485 |  | 207,485 |  |  | 176,468 |
Financing Receivable, Originated, Year Five | 156,634 |  | 156,634 |  |  | 117,755 |
Financing Receivable, Originated, More Than Five Years | 334,999 |  | 334,999 |  |  | 319,986 |
Financing Receivable, Revolving | 1,826,400 |  | 1,826,400 |  |  | 1,862,643 |
Financing Receivable, Revolving, Converted to Term Loan | 1,643 |  | 1,643 |  |  | 1,938 |
Loans | 4,122,248 |  | 4,122,248 |  |  | 4,058,655 |
Performing [Member] | Commercial [Member] | General business [Member] | Special Mention [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 3,488 |  | 3,488 |  |  | 4,399 |
Financing Receivable, Originated, Year Two | 1,745 |  | 1,745 |  |  | 5,749 |
Financing Receivable, Originated, Year Three | 1,152 |  | 1,152 |  |  | 4,285 |
Financing Receivable, Originated, Year Four | 2,368 |  | 2,368 |  |  | 7,002 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 224 |
Financing Receivable, Originated, More Than Five Years | 551 |  | 551 |  |  | 1,736 |
Financing Receivable, Revolving | 43,252 |  | 43,252 |  |  | 3,037 |
Financing Receivable, Revolving, Converted to Term Loan | 48 |  | 48 |  |  | 0 |
Loans | 52,604 |  | 52,604 |  |  | 26,432 |
Performing [Member] | Commercial [Member] | General business [Member] | Accruing Substandard [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 871 |  | 871 |  |  | 3,980 |
Financing Receivable, Originated, Year Two | 5,406 |  | 5,406 |  |  | 15,872 |
Financing Receivable, Originated, Year Three | 7,497 |  | 7,497 |  |  | 43,300 |
Financing Receivable, Originated, Year Four | 34,105 |  | 34,105 |  |  | 4,764 |
Financing Receivable, Originated, Year Five | 1,745 |  | 1,745 |  |  | 992 |
Financing Receivable, Originated, More Than Five Years | 10,557 |  | 10,557 |  |  | 4,708 |
Financing Receivable, Revolving | 7,124 |  | 7,124 |  |  | 5,859 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 67,305 |  | 67,305 |  |  | 79,475 |
Performing [Member] | Commercial real estate [Member] | Pass [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 738,423 |  | 738,423 |  |  | 436,206 |
Financing Receivable, Originated, Year Two | 815,271 |  | 815,271 |  |  | 512,614 |
Financing Receivable, Originated, Year Three | 531,581 |  | 531,581 |  |  | 2,004,558 |
Financing Receivable, Originated, Year Four | 1,898,991 |  | 1,898,991 |  |  | 793,161 |
Financing Receivable, Originated, Year Five | 725,665 |  | 725,665 |  |  | 233,619 |
Financing Receivable, Originated, More Than Five Years | 859,915 |  | 859,915 |  |  | 810,497 |
Financing Receivable, Revolving | 104,375 |  | 104,375 |  |  | 141,307 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 5,674,221 |  | 5,674,221 |  |  | 4,931,962 |
Performing [Member] | Commercial real estate [Member] | Special Mention [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Two | 0 |  | 0 |  |  | 313 |
Financing Receivable, Originated, Year Three | 0 |  | 0 |  |  | 14,907 |
Financing Receivable, Originated, Year Four | 0 |  | 0 |  |  | 32,131 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 3,129 |  | 3,129 |  |  | 0 |
Financing Receivable, Revolving | 0 |  | 0 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 3,129 |  | 3,129 |  |  | 47,351 |
Performing [Member] | Commercial real estate [Member] | Accruing Substandard [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Two | 486 |  | 486 |  |  | 0 |
Financing Receivable, Originated, Year Three | 0 |  | 0 |  |  | 36,981 |
Financing Receivable, Originated, Year Four | 4,977 |  | 4,977 |  |  | 0 |
Financing Receivable, Originated, Year Five | 29,324 |  | 29,324 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 33,661 |  | 33,661 |  |  | 32,253 |
Financing Receivable, Revolving | 0 |  | 0 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 68,448 |  | 68,448 |  |  | 69,234 |
Performing [Member] | Loans to individuals [Member] | Residential mortgage [Member] | Pass [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 446,478 |  | 446,478 |  |  | 530,186 |
Financing Receivable, Originated, Year Two | 431,184 |  | 431,184 |  |  | 338,187 |
Financing Receivable, Originated, Year Three | 283,185 |  | 283,185 |  |  | 286,865 |
Financing Receivable, Originated, Year Four | 259,320 |  | 259,320 |  |  | 318,935 |
Financing Receivable, Originated, Year Five | 287,695 |  | 287,695 |  |  | 314,814 |
Financing Receivable, Originated, More Than Five Years | 472,200 |  | 472,200 |  |  | 210,251 |
Financing Receivable, Revolving | 440,835 |  | 440,835 |  |  | 395,943 |
Financing Receivable, Revolving, Converted to Term Loan | 25,256 |  | 25,256 |  |  | 22,929 |
Loans | 2,646,153 |  | 2,646,153 |  |  | 2,418,110 |
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 |  |  | 0 |
Financing Receivable, Originated, Year Two | 211 |  | 211 |  |  | 167 |
Financing Receivable, Originated, Year Three | 55 |  | 55 |  |  | 148 |
Financing Receivable, Originated, Year Four | 212 |  | 212 |  |  | 219 |
Financing Receivable, Originated, Year Five | 87 |  | 87 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 5,579 |  | 5,579 |  |  | 113 |
Financing Receivable, Revolving | 1,059 |  | 1,059 |  |  | 1,767 |
Financing Receivable, Revolving, Converted to Term Loan | 1,233 |  | 1,233 |  |  | 0 |
Loans | 8,436 |  | 8,436 |  |  | 2,414 |
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 |  |  | 0 |
Financing Receivable, Originated, Year Two | 169 |  | 169 |  |  | 0 |
Financing Receivable, Originated, Year Three | 84 |  | 84 |  |  | 163 |
Financing Receivable, Originated, Year Four | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 86 |  | 86 |  |  | 45 |
Financing Receivable, Revolving | 183 |  | 183 |  |  | 898 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 67 |
Loans | 522 |  | 522 |  |  | 1,173 |
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 |  | 0 |  |  | 462 |
Financing Receivable, Originated, Year Two | 2,504 |  | 2,504 |  |  | 4,337 |
Financing Receivable, Originated, Year Three | 7,145 |  | 7,145 |  |  | 6,618 |
Financing Receivable, Originated, Year Four | 8,339 |  | 8,339 |  |  | 2,432 |
Financing Receivable, Originated, Year Five | 3,512 |  | 3,512 |  |  | 3,506 |
Financing Receivable, Originated, More Than Five Years | 122,794 |  | 122,794 |  |  | 112,491 |
Financing Receivable, Revolving | 0 |  | 0 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 144,294 |  | 144,294 |  |  | 129,846 |
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Pass [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 367,936 |  | 367,936 |  |  | 245,737 |
Financing Receivable, Originated, Year Two | 232,742 |  | 232,742 |  |  | 149,572 |
Financing Receivable, Originated, Year Three | 198,942 |  | 198,942 |  |  | 167,272 |
Financing Receivable, Originated, Year Four | 148,235 |  | 148,235 |  |  | 115,710 |
Financing Receivable, Originated, Year Five | 101,747 |  | 101,747 |  |  | 107,291 |
Financing Receivable, Originated, More Than Five Years | 213,229 |  | 213,229 |  |  | 151,030 |
Financing Receivable, Revolving | 482,518 |  | 482,518 |  |  | 510,147 |
Financing Receivable, Revolving, Converted to Term Loan | 344 |  | 344 |  |  | 2,619 |
Loans | 1,745,693 |  | 1,745,693 |  |  | 1,449,378 |
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Special Mention [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 37 |  | 37 |  |  | 18 |
Financing Receivable, Originated, Year Two | 48 |  | 48 |  |  | 17 |
Financing Receivable, Originated, Year Three | 50 |  | 50 |  |  | 30 |
Financing Receivable, Originated, Year Four | 10 |  | 10 |  |  | 825 |
Financing Receivable, Originated, Year Five | 20 |  | 20 |  |  | 8 |
Financing Receivable, Originated, More Than Five Years | 5 |  | 5 |  |  | 0 |
Financing Receivable, Revolving | 1,212 |  | 1,212 |  |  | 8 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 1,382 |  | 1,382 |  |  | 906 |
Performing [Member] | Loans to individuals [Member] | Personal [Member] | Accruing Substandard [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 6,703 |  | 6,703 |  |  | 16 |
Financing Receivable, Originated, Year Two | 21 |  | 21 |  |  | 0 |
Financing Receivable, Originated, Year Three | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Four | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 1 |
Financing Receivable, Originated, More Than Five Years | 128 |  | 128 |  |  | 129 |
Financing Receivable, Revolving | 13,000 |  | 13,000 |  |  | 1,990 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 19,852 |  | 19,852 |  |  | 2,136 |
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 |  |  | 0 |
Financing Receivable, Originated, Year Two | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Three | 15,080 |  | 15,080 |  |  | 96 |
Financing Receivable, Originated, Year Four | 83 |  | 83 |  |  | 463 |
Financing Receivable, Originated, Year Five | 377 |  | 377 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 8,788 |  | 8,788 |  |  | 13,158 |
Financing Receivable, Revolving | 179 |  | 179 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 24,507 |  | 24,507 |  |  | 13,717 |
Nonperforming Financial Instruments [Member] | Commercial [Member] | Services [Member] | Nonaccrual [Member] |  |  |  |  |  |  |
Financing Receivable, Credit Quality Indicator Line Items [Abstract] |  |  |  |  |  |  |
Financing Receivable, Originated, Year One | 414 |  | 414 |  |  | 0 |
Financing Receivable, Originated, Year Two | 29 |  | 29 |  |  | 0 |
Financing Receivable, Originated, Year Three | 42 |  | 42 |  |  | 0 |
Financing Receivable, Originated, Year Four | 879 |  | 879 |  |  | 0 |
Financing Receivable, Originated, Year Five | 183 |  | 183 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 146 |  | 146 |  |  | 0 |
Financing Receivable, Revolving | 5,954 |  | 5,954 |  |  | 767 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 7,647 |  | 7,647 |  |  | 767 |
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 |  |  | 0 |
Financing Receivable, Originated, Year Two | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Three | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Four | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 31 |  | 31 |  |  | 49 |
Financing Receivable, Revolving | 0 |  | 0 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 31 |  | 31 |  |  | 49 |
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 |  |  | 0 |
Financing Receivable, Originated, Year Two | 0 |  | 0 |  |  | 32 |
Financing Receivable, Originated, Year Three | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Four | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 48 |  | 48 |  |  | 23 |
Financing Receivable, Revolving | 0 |  | 0 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 37 |  | 37 |  |  | 59 |
Loans | 85 |  | 85 |  |  | 114 |
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 |  |  | 0 |
Financing Receivable, Originated, Year Two | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Three | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Four | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, More Than Five Years | 6,809 |  | 6,809 |  |  | 9,905 |
Financing Receivable, Revolving | 0 |  | 0 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 6,809 |  | 6,809 |  |  | 9,905 |
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 | 16 |  | 16 |  |  | 245 |
Financing Receivable, Originated, Year Two | 694 |  | 694 |  |  | 1,758 |
Financing Receivable, Originated, Year Three | 2,278 |  | 2,278 |  |  | 990 |
Financing Receivable, Originated, Year Four | 2,053 |  | 2,053 |  |  | 522 |
Financing Receivable, Originated, Year Five | 1,276 |  | 1,276 |  |  | 583 |
Financing Receivable, Originated, More Than Five Years | 9,668 |  | 9,668 |  |  | 7,420 |
Financing Receivable, Revolving | 4,462 |  | 4,462 |  |  | 3,221 |
Financing Receivable, Revolving, Converted to Term Loan | 808 |  | 808 |  |  | 522 |
Loans | 21,255 |  | 21,255 |  |  | 15,261 |
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 |  |  | 0 |
Financing Receivable, Originated, Year Two | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Three | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Four | 0 |  | 0 |  |  | 0 |
Financing Receivable, Originated, Year Five | 0 |  | 0 |  |  | 280 |
Financing Receivable, Originated, More Than Five Years | 7,348 |  | 7,348 |  |  | 6,523 |
Financing Receivable, Revolving | 0 |  | 0 |  |  | 0 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | 7,348 |  | 7,348 |  |  | 6,803 |
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 | 7 |  | 7 |  |  | 31 |
Financing Receivable, Originated, Year Two | 41 |  | 41 |  |  | 3 |
Financing Receivable, Originated, Year Three | 4,636 |  | 4,636 |  |  | 30 |
Financing Receivable, Originated, Year Four | 12 |  | 12 |  |  | 13 |
Financing Receivable, Originated, Year Five | 14 |  | 14 |  |  | 4 |
Financing Receivable, Originated, More Than Five Years | 2 |  | 2 |  |  | 5 |
Financing Receivable, Revolving | 0 |  | 0 |  |  | 23 |
Financing Receivable, Revolving, Converted to Term Loan | 0 |  | 0 |  |  | 0 |
Loans | $ 4,712 |  | $ 4,712 |  |  | $ 109 |
[1] | Includes charge-offs on deposit overdrafts, which are generally charged off at 60 days past due.
[2] | Includes charge-offs on deposit overdrafts, which are generally charged off at 60 days past due.

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