v3.26.1
Loans and Allowance for Credit Losses - Recorded Investment and Unpaid Principal Balance for Impaired Loans with Associated Allowance (Detail) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance $ 81,640   $ 81,640   $ 91,756
Financing Receivable, Nonaccrual Unpaid Principal Balance 102,049   102,049   118,901
Financing Receivable, Nonaccrual Related Allowance 10,314   10,314   9,836
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 28,686 $ 44,871      
Nonperforming Financing Receivable, Average Recorded Investment 84,880 75,922 87,713 $ 69,757  
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 56,194 31,051      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 476 68      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, Interest Income, Cash Basis Method 476 68 523 455  
With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 51,561   51,561   53,656
Financing Receivable, Nonaccrual Unpaid Principal Balance 70,826   70,826   70,621
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     64,571 41,202  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     523 455  
With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 30,079   30,079   38,100
Financing Receivable, Nonaccrual Unpaid Principal Balance 31,223   31,223   48,280
Financing Receivable, Nonaccrual Related Allowance 10,314   10,314   9,836
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     23,142 28,555  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Commercial, financial, agricultural and other [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 15,812 32,311      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 25,396 6,906      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Commercial, financial, agricultural and other [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 23,411   23,411   22,422
Financing Receivable, Nonaccrual Unpaid Principal Balance 33,450   33,450   31,583
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     29,524 8,647  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     12 78  
Commercial, financial, agricultural and other [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 17,271   17,271   24,196
Financing Receivable, Nonaccrual Unpaid Principal Balance 18,077   18,077   34,249
Financing Receivable, Nonaccrual Related Allowance 8,122   8,122   6,959
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     13,743 18,899  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Construction | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   1,475
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   1,475
Construction | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   0
Financing Receivable, Nonaccrual Related Allowance 0   0   0
Residential real estate [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 1,988 2,941      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 12,933 9,359      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 39 23      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Residential real estate [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 13,357   13,357   11,874
Financing Receivable, Nonaccrual Unpaid Principal Balance 14,934   14,934   13,678
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     12,134 9,599  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     66 42  
Residential real estate [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 1,972   1,972   1,145
Financing Receivable, Nonaccrual Unpaid Principal Balance 2,308   2,308   1,160
Financing Receivable, Nonaccrual Related Allowance 107   107   162
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     2,006 2,789  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Commercial Real Estate [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 10,886 9,084      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 17,857 13,021      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 436 44      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Commercial Real Estate [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 14,786   14,786   17,853
Financing Receivable, Nonaccrual Unpaid Principal Balance 22,426   22,426   23,807
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     22,404 21,013  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     444 228  
Commercial Real Estate [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 10,836   10,836   12,759
Financing Receivable, Nonaccrual Unpaid Principal Balance 10,838   10,838   12,871
Financing Receivable, Nonaccrual Related Allowance 2,085   2,085   2,715
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     7,393 6,600  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Loans to individuals [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 0 0      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 8 254      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 1 1      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Loans to individuals [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 7   7   32
Financing Receivable, Nonaccrual Unpaid Principal Balance 16   16   78
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     17 262  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     1 1  
Loans to individuals [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   0
Financing Receivable, Nonaccrual Related Allowance 0   0   0
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     0 0  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Real estate construction [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 0 535      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 0 1,511      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Real estate construction [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     492 1,681  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     0 106  
Real estate construction [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     0 267  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Time and Demand Loans | Commercial, financial, agricultural and other [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 15,273 32,210      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 23,492 6,153      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Time and Demand Loans | Commercial, financial, agricultural and other [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 21,534   21,534   21,092
Financing Receivable, Nonaccrual Unpaid Principal Balance 31,573   31,573   30,253
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     27,628 7,851  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     12 78  
Time and Demand Loans | Commercial, financial, agricultural and other [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 16,470   16,470   24,196
Financing Receivable, Nonaccrual Unpaid Principal Balance 17,276   17,276   34,249
Financing Receivable, Nonaccrual Related Allowance 7,716   7,716   6,959
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     13,474 18,848  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Senior Lien | Residential real estate [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 859 1,343      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 9,146 6,556      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 37 10      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Senior Lien | Residential real estate [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 9,608   9,608   7,219
Financing Receivable, Nonaccrual Unpaid Principal Balance 10,577   10,577   8,148
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     8,480 6,759  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     64 29  
Senior Lien | Residential real estate [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 851   851   1,145
Financing Receivable, Nonaccrual Unpaid Principal Balance 884   884   1,160
Financing Receivable, Nonaccrual Related Allowance 92   92   162
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     868 1,191  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Junior Lien | Residential real estate [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 1,129 1,598      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 3,787 2,803      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 2 13      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Junior Lien | Residential real estate [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 3,749   3,749   4,655
Financing Receivable, Nonaccrual Unpaid Principal Balance 4,357   4,357   5,530
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     3,654 2,840  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     2 13  
Junior Lien | Residential real estate [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 1,121   1,121   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 1,424   1,424   0
Financing Receivable, Nonaccrual Related Allowance 15   15   0
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     1,138 1,598  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Multifamily | Commercial Real Estate [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 10,886 0      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 10 0      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Multifamily | Commercial Real Estate [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 10   10   10
Financing Receivable, Nonaccrual Unpaid Principal Balance 12   12   12
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     10 177  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     0 0  
Multifamily | Commercial Real Estate [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 10,836   10,836   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 10,838   10,838   0
Financing Receivable, Nonaccrual Related Allowance 2,085   2,085   0
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     7,393 0  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Nonowner Occupied Commercial Real Estate | Commercial Real Estate [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 0 3,184      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 7,208 334      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 390 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonowner Occupied Commercial Real Estate | Commercial Real Estate [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 6,389   6,389   8,799
Financing Receivable, Nonaccrual Unpaid Principal Balance 11,993   11,993   12,879
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     9,737 14,096  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     391 184  
Nonowner Occupied Commercial Real Estate | Commercial Real Estate [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   5,357
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   5,357
Financing Receivable, Nonaccrual Related Allowance 0   0   2,280
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     0 2,920  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Owner Occupied Commercial Real Estate | Commercial Real Estate [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 0 5,900      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 10,639 12,687      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 46 44      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Owner Occupied Commercial Real Estate | Commercial Real Estate [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 8,387   8,387   9,044
Financing Receivable, Nonaccrual Unpaid Principal Balance 10,421   10,421   10,916
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     12,657 6,740  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     53 44  
Owner Occupied Commercial Real Estate | Commercial Real Estate [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   7,402
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   7,514
Financing Receivable, Nonaccrual Related Allowance 0   0   435
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     0 3,680  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Automobiles | Loans to individuals [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 0 0      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 6 246      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 1 1      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Automobiles | Loans to individuals [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 5   5   30
Financing Receivable, Nonaccrual Unpaid Principal Balance 14   14   62
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     11 223  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     1 1  
Automobiles | Loans to individuals [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   0
Financing Receivable, Nonaccrual Related Allowance 0   0   0
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     0 0  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Other Consumer Loans | Loans to individuals [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 0 0      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 2 8      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Other Consumer Loans | Loans to individuals [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 2   2   2
Financing Receivable, Nonaccrual Unpaid Principal Balance 2   2   16
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     6 39  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     0 0  
Other Consumer Loans | Loans to individuals [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   0
Financing Receivable, Nonaccrual Related Allowance 0   0   0
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     0 0  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Construction Residential | Construction | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   0
Construction Residential | Construction | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   0
Financing Receivable, Nonaccrual Related Allowance 0   0   0
Construction Residential | Real estate construction [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 0 355      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 0 0      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Construction Residential | Real estate construction [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     0 0  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     0 0  
Construction Residential | Real estate construction [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     0 177  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Construction Other | Construction | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   1,475
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   1,475
Construction Other | Construction | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   0
Financing Receivable, Nonaccrual Related Allowance 0   0   0
Construction Other | Real estate construction [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 0 180      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 0 1,511      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Construction Other | Real estate construction [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     492 1,681  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     0 106  
Construction Other | Real estate construction [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     0 90  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Time and Demand Loans Other | Commercial, financial, agricultural and other [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 0 0      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 0 0      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 0      
Time and Demand Loans Other | Commercial, financial, agricultural and other [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   0
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     0 0  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     0 0  
Time and Demand Loans Other | Commercial, financial, agricultural and other [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 0   0   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 0   0   0
Financing Receivable, Nonaccrual Related Allowance 0   0   0
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     0 0  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     0 0  
Equipment Finance | Commercial, financial, agricultural and other [Member]          
Financing Receivable, Impaired [Line Items]          
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment 539 101      
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment 1,904 753      
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method 0 0      
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method 0 $ 0      
Equipment Finance | Commercial, financial, agricultural and other [Member] | With No Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 1,877   1,877   1,330
Financing Receivable, Nonaccrual Unpaid Principal Balance 1,877   1,877   1,330
Nonperforming Financing Receivable With No Related Allowance Average Recorded Investment     1,896 796  
Nonperforming Financing Receivable, with No Related Allowance, Interest Income, Cash Basis Method     0 0  
Equipment Finance | Commercial, financial, agricultural and other [Member] | With a Related Allowance          
Financing Receivable, Impaired [Line Items]          
Unpaid principal balance 801   801   0
Financing Receivable, Nonaccrual Unpaid Principal Balance 801   801   0
Financing Receivable, Nonaccrual Related Allowance $ 406   406   $ 0
Nonperforming Financing Receivable, with A Related Allowance, Average Recorded Investment     269 51  
Nonperforming Financing Receivable, with Related Allowance, Interest Income, Cash Basis Method     $ 0 $ 0