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Loans And Allowance For Loan Losses - Loan Portfolio Credit Exposure (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year $ 7,049,731 $ 9,402,827
Term loans amortized cost basis by origination, before current fiscal year 8,851,511 6,558,797
Term loans amortized cost basis by origination, two years before current fiscal year 5,710,982 4,899,572
Term loans amortized cost basis by origination, three years before current fiscal year 3,604,052 3,085,986
Term loans amortized cost basis by origination, four years before current fiscal year 2,412,071 2,559,570
Term loans amortized cost basis by origination, prior 5,209,357 4,742,507
Total $ 43,716,353 $ 39,311,958
Allowance for loan and lease losses, number of past due days 120 days 120 days
Allowance for loan and lease losses, number of past due days threshold for charge-off 181 days 181 days
Maximum    
Financing Receivable, Credit Quality Indicator [Line Items]    
Allowance for loan and lease losses, percent of loan amount   50.00%
Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 10,323,287 $ 7,867,710
Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 555,362 194,989
Commercial And Industrial    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 2,855,387 4,200,393
Term loans amortized cost basis by origination, before current fiscal year 3,639,332 2,696,735
Term loans amortized cost basis by origination, two years before current fiscal year 2,286,853 2,112,628
Term loans amortized cost basis by origination, three years before current fiscal year 1,762,363 1,549,445
Term loans amortized cost basis by origination, four years before current fiscal year 1,281,244 1,184,980
Term loans amortized cost basis by origination, prior 2,252,438 2,122,625
Total 22,066,656 19,622,924
Commercial And Industrial | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 7,942,578 5,713,276
Commercial And Industrial | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 46,461 42,842
Commercial And Industrial | Commercial, financial, and agricultural    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 1,294,696 2,416,022
Term loans amortized cost basis by origination, before current fiscal year 1,943,422 1,398,694
Term loans amortized cost basis by origination, two years before current fiscal year 1,060,864 981,693
Term loans amortized cost basis by origination, three years before current fiscal year 831,510 637,246
Term loans amortized cost basis by origination, four years before current fiscal year 560,122 451,760
Term loans amortized cost basis by origination, prior 1,061,683 944,049
Total 13,874,416 12,147,858
Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 7,075,658 5,275,552
Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 46,461 42,842
Commercial And Industrial | Owner-occupied    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 1,560,691 1,784,371
Term loans amortized cost basis by origination, before current fiscal year 1,695,910 1,298,041
Term loans amortized cost basis by origination, two years before current fiscal year 1,225,989 1,130,935
Term loans amortized cost basis by origination, three years before current fiscal year 930,853 912,199
Term loans amortized cost basis by origination, four years before current fiscal year 721,122 733,220
Term loans amortized cost basis by origination, prior 1,190,755 1,178,576
Total 8,192,240 7,475,066
Commercial And Industrial | Owner-occupied | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 866,920 437,724
Commercial And Industrial | Owner-occupied | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial Real Estate    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 3,050,240 3,271,317
Term loans amortized cost basis by origination, before current fiscal year 3,488,664 1,591,162
Term loans amortized cost basis by origination, two years before current fiscal year 1,600,213 2,079,334
Term loans amortized cost basis by origination, three years before current fiscal year 1,311,330 1,256,576
Term loans amortized cost basis by origination, four years before current fiscal year 910,001 888,314
Term loans amortized cost basis by origination, prior 1,674,752 1,494,335
Total 12,650,313 11,015,111
Commercial Real Estate | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 615,113 434,073
Commercial Real Estate | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial Real Estate | Investment properties    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 2,680,012 2,831,606
Term loans amortized cost basis by origination, before current fiscal year 3,248,674 1,463,829
Term loans amortized cost basis by origination, two years before current fiscal year 1,532,406 1,946,374
Term loans amortized cost basis by origination, three years before current fiscal year 1,237,232 1,140,792
Term loans amortized cost basis by origination, four years before current fiscal year 833,422 800,794
Term loans amortized cost basis by origination, prior 1,550,043 1,385,671
Total 11,644,047 9,902,776
Commercial Real Estate | Investment properties | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 562,258 333,710
Commercial Real Estate | Investment properties | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial Real Estate | 1-4 family properties    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 249,728 297,273
Term loans amortized cost basis by origination, before current fiscal year 155,610 83,183
Term loans amortized cost basis by origination, two years before current fiscal year 44,859 53,146
Term loans amortized cost basis by origination, three years before current fiscal year 33,987 47,247
Term loans amortized cost basis by origination, four years before current fiscal year 27,889 49,546
Term loans amortized cost basis by origination, prior 57,083 59,441
Total 616,933 645,469
Commercial Real Estate | 1-4 family properties | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 47,777 55,633
Commercial Real Estate | 1-4 family properties | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Commercial Real Estate | Land and development    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 120,500 142,438
Term loans amortized cost basis by origination, before current fiscal year 84,380 44,150
Term loans amortized cost basis by origination, two years before current fiscal year 22,948 79,814
Term loans amortized cost basis by origination, three years before current fiscal year 40,111 68,537
Term loans amortized cost basis by origination, four years before current fiscal year 48,690 37,974
Term loans amortized cost basis by origination, prior 67,626 49,223
Total 389,333 466,866
Commercial Real Estate | Land and development | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 5,078 44,730
Commercial Real Estate | Land and development | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Consumer    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 1,144,104 1,931,117
Term loans amortized cost basis by origination, before current fiscal year 1,723,515 2,270,900
Term loans amortized cost basis by origination, two years before current fiscal year 1,823,916 707,610
Term loans amortized cost basis by origination, three years before current fiscal year 530,359 279,965
Term loans amortized cost basis by origination, four years before current fiscal year 220,826 486,276
Term loans amortized cost basis by origination, prior 1,282,167 1,125,547
Total 8,999,384 8,673,923
Consumer | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 1,765,596 1,720,361
Consumer | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 508,901 152,147
Consumer | Consumer mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 858,642 1,276,030
Term loans amortized cost basis by origination, before current fiscal year 1,195,104 1,560,413
Term loans amortized cost basis by origination, two years before current fiscal year 1,364,584 578,415
Term loans amortized cost basis by origination, three years before current fiscal year 467,887 228,664
Term loans amortized cost basis by origination, four years before current fiscal year 189,001 398,209
Term loans amortized cost basis by origination, prior 1,139,082 1,027,012
Total 5,214,443 5,068,998
Consumer | Consumer mortgages | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 143 255
Consumer | Consumer mortgages | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Consumer | Home equity    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 1,757,038 1,361,419
Consumer | Home equity | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 1,248,137 1,209,272
Consumer | Home equity | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 508,901 152,147
Consumer | Credit cards    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 203,612 204,172
Consumer | Credit cards | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 203,612 204,172
Consumer | Credit cards | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Consumer | Other consumer loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 285,462 655,087
Term loans amortized cost basis by origination, before current fiscal year 528,411 710,487
Term loans amortized cost basis by origination, two years before current fiscal year 459,332 129,195
Term loans amortized cost basis by origination, three years before current fiscal year 62,472 51,301
Term loans amortized cost basis by origination, four years before current fiscal year 31,825 88,067
Term loans amortized cost basis by origination, prior 143,085 98,535
Total 1,824,291 2,039,334
Consumer | Other consumer loans | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 313,704 306,662
Consumer | Other consumer loans | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Pass | Commercial And Industrial | Commercial, financial, and agricultural    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 1,276,814 2,396,717
Term loans amortized cost basis by origination, before current fiscal year 1,911,353 1,332,549
Term loans amortized cost basis by origination, two years before current fiscal year 1,009,230 922,396
Term loans amortized cost basis by origination, three years before current fiscal year 782,100 607,918
Term loans amortized cost basis by origination, four years before current fiscal year 536,001 433,045
Term loans amortized cost basis by origination, prior 1,037,488 903,995
Total 13,458,804 11,791,410
Pass | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 6,862,070 5,151,981
Pass | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 43,748 42,809
Pass | Commercial And Industrial | Owner-occupied    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 1,537,016 1,776,086
Term loans amortized cost basis by origination, before current fiscal year 1,675,524 1,276,797
Term loans amortized cost basis by origination, two years before current fiscal year 1,137,889 1,117,825
Term loans amortized cost basis by origination, three years before current fiscal year 909,525 858,721
Term loans amortized cost basis by origination, four years before current fiscal year 664,734 708,942
Term loans amortized cost basis by origination, prior 1,103,500 1,116,766
Total 7,895,108 7,292,861
Pass | Commercial And Industrial | Owner-occupied | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 866,920 437,724
Pass | Commercial And Industrial | Owner-occupied | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Pass | Commercial Real Estate | Investment properties    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 2,671,660 2,823,978
Term loans amortized cost basis by origination, before current fiscal year 3,245,669 1,463,503
Term loans amortized cost basis by origination, two years before current fiscal year 1,532,230 1,905,534
Term loans amortized cost basis by origination, three years before current fiscal year 1,220,974 1,019,765
Term loans amortized cost basis by origination, four years before current fiscal year 775,747 738,036
Term loans amortized cost basis by origination, prior 1,543,724 1,317,634
Total 11,531,122 9,547,147
Pass | Commercial Real Estate | Investment properties | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 541,118 278,697
Pass | Commercial Real Estate | Investment properties | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Pass | Commercial Real Estate | 1-4 family properties    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 248,418 295,082
Term loans amortized cost basis by origination, before current fiscal year 154,181 82,976
Term loans amortized cost basis by origination, two years before current fiscal year 44,032 51,939
Term loans amortized cost basis by origination, three years before current fiscal year 33,246 43,025
Term loans amortized cost basis by origination, four years before current fiscal year 27,053 49,057
Term loans amortized cost basis by origination, prior 55,543 57,025
Total 610,205 634,692
Pass | Commercial Real Estate | 1-4 family properties | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 47,732 55,588
Pass | Commercial Real Estate | 1-4 family properties | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Pass | Commercial Real Estate | Land and development    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 119,801 141,614
Term loans amortized cost basis by origination, before current fiscal year 84,055 42,201
Term loans amortized cost basis by origination, two years before current fiscal year 21,984 77,868
Term loans amortized cost basis by origination, three years before current fiscal year 39,484 34,058
Term loans amortized cost basis by origination, four years before current fiscal year 18,600 37,167
Term loans amortized cost basis by origination, prior 64,854 44,989
Total 353,856 422,627
Pass | Commercial Real Estate | Land and development | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 5,078 44,730
Pass | Commercial Real Estate | Land and development | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Pass | Consumer | Consumer mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 857,489 1,274,999
Term loans amortized cost basis by origination, before current fiscal year 1,188,652 1,556,733
Term loans amortized cost basis by origination, two years before current fiscal year 1,356,065 572,467
Term loans amortized cost basis by origination, three years before current fiscal year 458,441 216,277
Term loans amortized cost basis by origination, four years before current fiscal year 182,834 392,492
Term loans amortized cost basis by origination, prior 1,118,686 1,001,771
Total 5,162,310 5,014,994
Pass | Consumer | Consumer mortgages | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 143 255
Pass | Consumer | Consumer mortgages | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Pass | Consumer | Home equity    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 1,745,473 1,346,191
Pass | Consumer | Home equity | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 1,241,201 1,199,556
Pass | Consumer | Home equity | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 504,272 146,635
Pass | Consumer | Credit cards    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 201,898 203,161
Pass | Consumer | Credit cards | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 201,898 203,161
Pass | Consumer | Credit cards | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Pass | Consumer | Other consumer loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 284,045 654,419
Term loans amortized cost basis by origination, before current fiscal year 524,601 708,937
Term loans amortized cost basis by origination, two years before current fiscal year 457,684 127,131
Term loans amortized cost basis by origination, three years before current fiscal year 61,760 49,993
Term loans amortized cost basis by origination, four years before current fiscal year 31,662 86,175
Term loans amortized cost basis by origination, prior 142,189 97,765
Total 1,815,506 2,030,920
Pass | Consumer | Other consumer loans | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 313,565 306,500
Pass | Consumer | Other consumer loans | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Special Mention | Commercial And Industrial | Commercial, financial, and agricultural    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 4,131 2,731
Term loans amortized cost basis by origination, before current fiscal year 14,289 15,166
Term loans amortized cost basis by origination, two years before current fiscal year 12,691 17,571
Term loans amortized cost basis by origination, three years before current fiscal year 6,637 10,433
Term loans amortized cost basis by origination, four years before current fiscal year 5,716 2,242
Term loans amortized cost basis by origination, prior 2,777 2,489
Total 129,840 122,628
Special Mention | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 81,889 71,996
Special Mention | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 1,710 0
Special Mention | Commercial And Industrial | Owner-occupied    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 4,238 702
Term loans amortized cost basis by origination, before current fiscal year 6,760 19,950
Term loans amortized cost basis by origination, two years before current fiscal year 24,175 4,724
Term loans amortized cost basis by origination, three years before current fiscal year 13,913 10,202
Term loans amortized cost basis by origination, four years before current fiscal year 5,024 18,109
Term loans amortized cost basis by origination, prior 69,500 36,481
Total 123,610 90,168
Special Mention | Commercial And Industrial | Owner-occupied | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Special Mention | Commercial And Industrial | Owner-occupied | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Special Mention | Commercial Real Estate | Investment properties    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 2,379 6,163
Term loans amortized cost basis by origination, before current fiscal year 1,550 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 32,290
Term loans amortized cost basis by origination, three years before current fiscal year 14,570 63,900
Term loans amortized cost basis by origination, four years before current fiscal year 5,908 59,194
Term loans amortized cost basis by origination, prior 2,388 44,532
Total 26,941 239,738
Special Mention | Commercial Real Estate | Investment properties | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 146 33,659
Special Mention | Commercial Real Estate | Investment properties | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Special Mention | Commercial Real Estate | 1-4 family properties    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 1 192
Term loans amortized cost basis by origination, before current fiscal year 0 207
Term loans amortized cost basis by origination, two years before current fiscal year 752 641
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 297 239
Total 1,050 1,279
Special Mention | Commercial Real Estate | 1-4 family properties | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Special Mention | Commercial Real Estate | 1-4 family properties | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Special Mention | Commercial Real Estate | Land and development    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 800
Term loans amortized cost basis by origination, two years before current fiscal year 744 1,900
Term loans amortized cost basis by origination, three years before current fiscal year 0 31,458
Term loans amortized cost basis by origination, four years before current fiscal year 29,618 0
Term loans amortized cost basis by origination, prior 1,118 1,179
Total 31,480 35,337
Special Mention | Commercial Real Estate | Land and development | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Special Mention | Commercial Real Estate | Land and development | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Commercial And Industrial | Commercial, financial, and agricultural    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 13,751 16,105
Term loans amortized cost basis by origination, before current fiscal year 17,780 50,979
Term loans amortized cost basis by origination, two years before current fiscal year 38,943 40,125
Term loans amortized cost basis by origination, three years before current fiscal year 42,773 10,383
Term loans amortized cost basis by origination, four years before current fiscal year 18,405 16,473
Term loans amortized cost basis by origination, prior 21,418 37,565
Total 285,495 223,105
Substandard | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 131,422 51,442
Substandard | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 1,003 33
Substandard | Commercial And Industrial | Owner-occupied    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 19,437 7,312
Term loans amortized cost basis by origination, before current fiscal year 13,381 1,294
Term loans amortized cost basis by origination, two years before current fiscal year 63,925 8,386
Term loans amortized cost basis by origination, three years before current fiscal year 7,415 43,276
Term loans amortized cost basis by origination, four years before current fiscal year 51,364 6,169
Term loans amortized cost basis by origination, prior 17,755 25,329
Total 173,277 91,766
Substandard | Commercial And Industrial | Owner-occupied | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Commercial And Industrial | Owner-occupied | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Commercial Real Estate | Investment properties    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 5,973 1,465
Term loans amortized cost basis by origination, before current fiscal year 1,455 326
Term loans amortized cost basis by origination, two years before current fiscal year 176 8,550
Term loans amortized cost basis by origination, three years before current fiscal year 1,688 57,127
Term loans amortized cost basis by origination, four years before current fiscal year 51,767 3,564
Term loans amortized cost basis by origination, prior 3,931 23,505
Total 85,984 115,891
Substandard | Commercial Real Estate | Investment properties | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 20,994 21,354
Substandard | Commercial Real Estate | Investment properties | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Commercial Real Estate | 1-4 family properties    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 1,309 1,999
Term loans amortized cost basis by origination, before current fiscal year 1,429 0
Term loans amortized cost basis by origination, two years before current fiscal year 75 566
Term loans amortized cost basis by origination, three years before current fiscal year 741 4,222
Term loans amortized cost basis by origination, four years before current fiscal year 836 489
Term loans amortized cost basis by origination, prior 1,243 2,177
Total 5,678 9,498
Substandard | Commercial Real Estate | 1-4 family properties | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 45 45
Substandard | Commercial Real Estate | 1-4 family properties | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Commercial Real Estate | Land and development    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 699 824
Term loans amortized cost basis by origination, before current fiscal year 325 1,149
Term loans amortized cost basis by origination, two years before current fiscal year 220 46
Term loans amortized cost basis by origination, three years before current fiscal year 627 3,021
Term loans amortized cost basis by origination, four years before current fiscal year 472 807
Term loans amortized cost basis by origination, prior 1,654 3,055
Total 3,997 8,902
Substandard | Commercial Real Estate | Land and development | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Commercial Real Estate | Land and development | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Consumer | Consumer mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 1,153 1,031
Term loans amortized cost basis by origination, before current fiscal year 6,452 3,680
Term loans amortized cost basis by origination, two years before current fiscal year 8,519 5,943
Term loans amortized cost basis by origination, three years before current fiscal year 9,442 12,387
Term loans amortized cost basis by origination, four years before current fiscal year 6,167 5,717
Term loans amortized cost basis by origination, prior 19,662 25,025
Total 51,395 53,783
Substandard | Consumer | Consumer mortgages | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Consumer | Consumer mortgages | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Consumer | Home equity    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 11,046 14,430
Substandard | Consumer | Home equity | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 6,534 9,058
Substandard | Consumer | Home equity | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 4,512 5,372
Substandard | Consumer | Credit cards    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 617 348
Substandard | Consumer | Credit cards | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 617 348
Substandard | Consumer | Credit cards | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Substandard | Consumer | Other consumer loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 1,417 668
Term loans amortized cost basis by origination, before current fiscal year 3,810 1,550
Term loans amortized cost basis by origination, two years before current fiscal year 1,648 2,064
Term loans amortized cost basis by origination, three years before current fiscal year 712 1,308
Term loans amortized cost basis by origination, four years before current fiscal year 163 1,892
Term loans amortized cost basis by origination, prior 888 750
Total 8,777 8,394
Substandard | Consumer | Other consumer loans | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 139 162
Substandard | Consumer | Other consumer loans | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Doubtful | Commercial And Industrial | Commercial, financial, and agricultural    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year   469
Term loans amortized cost basis by origination, before current fiscal year   0
Term loans amortized cost basis by origination, two years before current fiscal year   1,601
Term loans amortized cost basis by origination, three years before current fiscal year   8,512
Term loans amortized cost basis by origination, four years before current fiscal year   0
Term loans amortized cost basis by origination, prior   0
Total   10,630
Doubtful | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total   48
Doubtful | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total   0
Loss | Commercial And Industrial | Commercial, financial, and agricultural    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 277 85
Loss | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 277 85
Loss | Commercial And Industrial | Commercial, financial, and agricultural | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Loss | Commercial And Industrial | Owner-occupied    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 271
Term loans amortized cost basis by origination, before current fiscal year 245 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 245 271
Loss | Commercial And Industrial | Owner-occupied | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Loss | Commercial And Industrial | Owner-occupied | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Loss | Consumer | Consumer mortgages    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 5
Term loans amortized cost basis by origination, three years before current fiscal year 4 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 734 216
Total 738 221
Loss | Consumer | Consumer mortgages | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Loss | Consumer | Consumer mortgages | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Loss | Consumer | Home equity    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 519 798
Loss | Consumer | Home equity | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 402 658
Loss | Consumer | Home equity | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 117 140
Loss | Consumer | Credit cards    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 0 0
Total 1,097 663
Loss | Consumer | Credit cards | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 1,097 663
Loss | Consumer | Credit cards | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Loss | Consumer | Other consumer loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Term loans amortized cost basis by origination, current fiscal year 0 0
Term loans amortized cost basis by origination, before current fiscal year 0 0
Term loans amortized cost basis by origination, two years before current fiscal year 0 0
Term loans amortized cost basis by origination, three years before current fiscal year 0 0
Term loans amortized cost basis by origination, four years before current fiscal year 0 0
Term loans amortized cost basis by origination, prior 8 20
Total 8 20
Loss | Consumer | Other consumer loans | Revolving Loans Amortized Cost Basis    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total 0 0
Loss | Consumer | Other consumer loans | Revolving Loans Converted to Term Loans    
Financing Receivable, Credit Quality Indicator [Line Items]    
Total $ 0 $ 0