v3.26.1
Loans and Allowance for Credit Losses - Credit Risk Profile by Creditworthiness (Detail) - USD ($)
$ in Thousands
Mar. 31, 2026
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss $ 9,433,825 $ 9,508,039
Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,196,447 1,226,054
Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 11,919 11,408
Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,613,180 1,631,019
Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 738,421 729,266
Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 606,179 594,790
Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,776,985 1,834,016
Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 765,603 753,303
Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,367,360 1,387,195
Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8,886 9,496
Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 59,080 61,179
Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 746,723 693,265
Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 106,805 114,262
Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 404,394 415,536
Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 31,843 47,250
Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,061,894 2,044,989
Commercial, financial, agricultural and other [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,196,447 1,226,054
Commercial, financial, agricultural and other [Member] | Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 11,919 11,408
Commercial, financial, agricultural and other [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 746,723 693,265
Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 106,805 114,262
Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 436,237 462,786
Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,351,601 2,360,285
Residential real estate [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,613,180 1,631,019
Residential real estate [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 738,421 729,266
Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 3,148,767 3,182,109
Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 606,179 594,790
Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,776,985 1,834,016
Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 765,603 753,303
Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,435,326 1,457,870
Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,367,360 1,387,195
Loans to individuals [Member] | Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8,886 9,496
Loans to individuals [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 59,080 61,179
Real estate construction [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 436,237 462,786
Real estate construction [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 404,394 415,536
Real estate construction [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 31,843 47,250
Pass [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 9,149,197 9,240,875
Pass [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,087,361 1,112,673
Pass [Member] | Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 11,919 11,408
Pass [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,599,297 1,618,090
Pass [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 733,719 724,611
Pass [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 586,725 575,330
Pass [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,697,902 1,777,941
Pass [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 716,876 701,374
Pass [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,367,352 1,387,163
Pass [Member] | Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8,886 9,496
Pass [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 59,078 61,177
Pass [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 737,612 686,636
Pass [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 106,805 114,260
Pass [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 403,822 413,466
Pass [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 31,843 47,250
Pass [Member] | Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,943,697 1,924,977
Pass [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,087,361 1,112,673
Pass [Member] | Commercial, financial, agricultural and other [Member] | Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 11,919 11,408
Pass [Member] | Commercial, financial, agricultural and other [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 737,612 686,636
Pass [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 106,805 114,260
Pass [Member] | Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 435,665 460,716
Pass [Member] | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,333,016 2,342,701
Pass [Member] | Residential real estate [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,599,297 1,618,090
Pass [Member] | Residential real estate [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 733,719 724,611
Pass [Member] | Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 3,001,503 3,054,645
Pass [Member] | Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 586,725 575,330
Pass [Member] | Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,697,902 1,777,941
Pass [Member] | Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 716,876 701,374
Pass [Member] | Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,435,316 1,457,836
Pass [Member] | Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,367,352 1,387,163
Pass [Member] | Loans to individuals [Member] | Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8,886 9,496
Pass [Member] | Loans to individuals [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 59,078 61,177
Pass [Member] | Real estate construction [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 403,822 413,466
Pass [Member] | Real estate construction [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 31,843 47,250
Special Mention [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 147,731 127,786
Special Mention [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 56,921 49,765
Special Mention [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 5,197 4,402
Special Mention [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 7,369 7,718
Special Mention [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 52,196 40,928
Special Mention [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 22,131 20,536
Special Mention [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 3,472 3,972
Special Mention [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss   2
Special Mention [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 445  
Special Mention [Member] | Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 60,393 53,739
Special Mention [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 56,921 49,765
Special Mention [Member] | Commercial, financial, agricultural and other [Member] | Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Special Mention [Member] | Commercial, financial, agricultural and other [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 3,472 3,972
Special Mention [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 2
Special Mention [Member] | Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 445 463
Special Mention [Member] | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 5,197 4,402
Special Mention [Member] | Residential real estate [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 5,197 4,402
Special Mention [Member] | Residential real estate [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Special Mention [Member] | Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 81,696 69,182
Special Mention [Member] | Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 7,369 7,718
Special Mention [Member] | Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 52,196 40,928
Special Mention [Member] | Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 22,131 20,536
Special Mention [Member] | Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Special Mention [Member] | Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Special Mention [Member] | Loans to individuals [Member] | Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Special Mention [Member] | Loans to individuals [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Special Mention [Member] | Real estate construction [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 445 463
Special Mention [Member] | Real estate construction [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Substandard [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 136,897 138,486
Substandard [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 52,165 62,724
Substandard [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8,686 8,527
Substandard [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 4,702 4,655
Substandard [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 12,085 11,742
Substandard [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 26,887 15,147
Substandard [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 26,596 31,393
Substandard [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8 32
Substandard [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2 2
Substandard [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 5,639 2,657
Substandard [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 127 1,607
Substandard [Member] | Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 57,804 65,381
Substandard [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 52,165 62,724
Substandard [Member] | Commercial, financial, agricultural and other [Member] | Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Substandard [Member] | Commercial, financial, agricultural and other [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 5,639 2,657
Substandard [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Substandard [Member] | Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 127 1,607
Substandard [Member] | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 13,388 13,182
Substandard [Member] | Residential real estate [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8,686 8,527
Substandard [Member] | Residential real estate [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 4,702 4,655
Substandard [Member] | Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 65,568 58,282
Substandard [Member] | Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 12,085 11,742
Substandard [Member] | Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 26,887 15,147
Substandard [Member] | Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 26,596 31,393
Substandard [Member] | Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 10 34
Substandard [Member] | Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8 32
Substandard [Member] | Loans to individuals [Member] | Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Substandard [Member] | Loans to individuals [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2 2
Substandard [Member] | Real estate construction [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 127 1,607
Substandard [Member] | Real estate construction [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 892
Doubtful [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss   892
Doubtful [Member] | Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 892
Doubtful [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 892
Doubtful [Member] | Commercial, financial, agricultural and other [Member] | Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Commercial, financial, agricultural and other [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Residential real estate [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Residential real estate [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Loans to individuals [Member] | Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Loans to individuals [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Real estate construction [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Doubtful [Member] | Real estate construction [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Commercial, financial, agricultural and other [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Commercial, financial, agricultural and other [Member] | Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Commercial, financial, agricultural and other [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Residential real estate [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Residential real estate [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Loans to individuals [Member] | Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Loans to individuals [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Real estate construction [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Unlikely to be Collected Financing Receivable | Real estate construction [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Criticized [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 284,628 267,164
Criticized [Member] | Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 118,197 120,012
Criticized [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 109,086 113,381
Criticized [Member] | Commercial, financial, agricultural and other [Member] | Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Criticized [Member] | Commercial, financial, agricultural and other [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 9,111 6,629
Criticized [Member] | Commercial, financial, agricultural and other [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 2
Criticized [Member] | Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 572 2,070
Criticized [Member] | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 18,585 17,584
Criticized [Member] | Residential real estate [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 13,883 12,929
Criticized [Member] | Residential real estate [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 4,702 4,655
Criticized [Member] | Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 147,264 127,464
Criticized [Member] | Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 19,454 19,460
Criticized [Member] | Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 79,083 56,075
Criticized [Member] | Commercial Real Estate [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 48,727 51,929
Criticized [Member] | Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 10 34
Criticized [Member] | Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8 32
Criticized [Member] | Loans to individuals [Member] | Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 0 0
Criticized [Member] | Loans to individuals [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2 2
Criticized [Member] | Real estate construction [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 572 2,070
Criticized [Member] | Real estate construction [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss $ 0 $ 0