v3.26.1
Loans and Allowance for Credit Losses - Credit Risk Profile by Creditworthiness (Detail) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss $ 9,467,229 $ 9,508,039
Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,151,708 1,226,054
Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 12,135 11,408
Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,605,497 1,631,019
Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 762,669 729,266
Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 636,826 594,790
Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,690,230 1,834,016
Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 756,718 753,303
Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,390,894 1,387,195
Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8,819 9,496
Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 57,523 61,179
Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 784,754 693,265
Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 122,790 114,262
Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 456,253 415,536
Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 30,413 47,250
Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,071,387 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 1,151,708 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 12,135 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 784,754 693,265
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 122,790 114,262
Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 486,666 462,786
Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,368,166 2,360,285
Residential real estate [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,605,497 1,631,019
Residential real estate [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 762,669 729,266
Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 3,083,774 3,182,109
Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 636,826 594,790
Commercial Real Estate [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,690,230 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 756,718 753,303
Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,457,236 1,457,870
Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,390,894 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 8,819 9,496
Loans to individuals [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 57,523 61,179
Real estate construction [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 486,666 462,786
Real estate construction [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 456,253 415,536
Real estate construction [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 30,413 47,250
Pass [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 9,180,732 9,240,875
Pass [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,034,354 1,112,673
Pass [Member] | Commercial Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 12,135 11,408
Pass [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,592,791 1,618,090
Pass [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 757,799 724,611
Pass [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 613,807 575,330
Pass [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,623,800 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 707,595 701,374
Pass [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,390,887 1,387,163
Pass [Member] | Consumer Credit Cards    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 8,819 9,496
Pass [Member] | Other Consumer Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 57,521 61,177
Pass [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 772,315 686,636
Pass [Member] | Time and Demand Loans Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 122,790 114,260
Pass [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 455,706 413,466
Pass [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 30,413 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 1,941,594 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 1,034,354 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 12,135 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 772,315 686,636
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 122,790 114,260
Pass [Member] | Construction    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 486,119 460,716
Pass [Member] | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,350,590 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 1,592,791 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 757,799 724,611
Pass [Member] | Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,945,202 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 613,807 575,330
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 1,623,800 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 707,595 701,374
Pass [Member] | Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 1,457,227 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 1,390,887 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 8,819 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 57,521 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 455,706 413,466
Pass [Member] | Real estate construction [Member] | Construction Residential    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 30,413 47,250
Special Mention [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 138,090 127,786
Special Mention [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 61,798 49,765
Special Mention [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,098 4,402
Special Mention [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 11,800 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 34,844 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 23,038 20,536
Special Mention [Member] | Equipment Finance    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 4,085 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 427  
Special Mention [Member] | Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 65,883 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 61,798 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 4,085 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 427 463
Special Mention [Member] | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 2,098 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 2,098 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 69,682 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 11,800 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 34,844 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 23,038 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 427 463
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 148,407 138,486
Substandard [Member] | Time and Demand Loans    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 55,556 62,724
Substandard [Member] | Senior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 10,608 8,527
Substandard [Member] | Junior Lien    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 4,870 4,655
Substandard [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 11,219 11,742
Substandard [Member] | Nonowner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 31,586 15,147
Substandard [Member] | Owner Occupied Commercial Real Estate    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 26,085 31,393
Substandard [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 7 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 8,354 2,657
Substandard [Member] | Construction Other    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 120 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 63,910 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 55,556 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 8,354 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 120 1,607
Substandard [Member] | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 15,478 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 10,608 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 4,870 4,655
Substandard [Member] | Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 68,890 58,282
Substandard [Member] | Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 11,219 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 31,586 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 26,085 31,393
Substandard [Member] | Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 9 34
Substandard [Member] | Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 7 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 120 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 286,497 267,164
Criticized [Member] | Commercial, financial, agricultural and other [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 129,793 120,012
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 117,354 113,381
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 12,439 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 547 2,070
Criticized [Member] | Residential real estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 17,576 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 12,706 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 4,870 4,655
Criticized [Member] | Commercial Real Estate [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 138,572 127,464
Criticized [Member] | Commercial Real Estate [Member] | Multifamily    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 23,019 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 66,430 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 49,123 51,929
Criticized [Member] | Loans to individuals [Member]    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 9 34
Criticized [Member] | Loans to individuals [Member] | Automobiles    
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Financing Receivable, before Allowance for Credit Loss 7 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 547 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