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Allowance for Credit Losses (By Loan Class) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period | $ 110,374 | $ 109,059 | $ 60,278
Losses charged to allowance | (9,479) | (9,024) | (9,574)
Recoveries credited to allowance | 3,426 | 2,384 | 2,629
Net (losses) recoveries charged to allowance | (6,053) | (6,640) | (6,945)
Credit loss expense | 21,651 | 7,955 | 45,379
Balance at the end of the period | 125,972 | 110,374 | 109,059
ASU 2016-13 |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period |  |  | 10,347
Commercial, financial and agricultural | Domestic | Commercial. |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period | 23,178 | 21,908 | 11,145
Losses charged to allowance | (9,050) | (8,083) | (8,936)
Recoveries credited to allowance | 2,894 | 1,943 | 2,191
Net (losses) recoveries charged to allowance | (6,156) | (6,140) | (6,745)
Credit loss expense | 9,706 | 7,410 | 13,261
Balance at the end of the period | 26,728 | 23,178 | 21,908
Commercial, financial and agricultural | Domestic | Commercial. | ASU 2016-13 |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period |  |  | 4,247
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period | 35,654 | 30,000 | 16,533
Losses charged to allowance | (16) | (364) | (55)
Recoveries credited to allowance | 27 | 171 | 117
Net (losses) recoveries charged to allowance | 11 | (193) | 62
Credit loss expense | 809 | 5,847 | 17,697
Balance at the end of the period | 36,474 | 35,654 | 30,000
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial | ASU 2016-13 |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period |  |  | (4,292)
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period | 3,291 | 5,051 | 1,786
Credit loss expense | 503 | (1,760) | 3,620
Balance at the end of the period | 3,794 | 3,291 | 5,051
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily | ASU 2016-13 |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period |  |  | (355)
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period | 35,390 | 37,612 | 18,152
Losses charged to allowance | (2) | (2) | (19)
Recoveries credited to allowance | 123 |  | 35
Net (losses) recoveries charged to allowance | 121 | (2) | 16
Credit loss expense | 9,173 | (2,220) | 6,053
Balance at the end of the period | 44,684 | 35,390 | 37,612
Obligations of states and political subdivisions | Domestic | Commercial Real Estate: other construction and land development | ASU 2016-13 |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period |  |  | 13,391
Real estate - mortgage | Domestic | Residential: first lien |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period | 4,073 | 3,874 | 3,762
Losses charged to allowance | (160) | (373) | (160)
Recoveries credited to allowance | 240 | 60 | 21
Net (losses) recoveries charged to allowance | 80 | (313) | (139)
Credit loss expense | 606 | 512 | 1,831
Balance at the end of the period | 4,759 | 4,073 | 3,874
Real estate - mortgage | Domestic | Residential: first lien | ASU 2016-13 |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period |  |  | (1,580)
Real estate - mortgage | Domestic | Residential Junior Lien |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period | 7,754 | 9,570 | 7,535
Losses charged to allowance | (28) | (25) | (124)
Recoveries credited to allowance | 104 | 164 | 186
Net (losses) recoveries charged to allowance | 76 | 139 | 62
Credit loss expense | 454 | (1,955) | 2,402
Balance at the end of the period | 8,284 | 7,754 | 9,570
Real estate - mortgage | Domestic | Residential Junior Lien | ASU 2016-13 |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period |  |  | (429)
Consumer | Domestic |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period | 272 | 291 | 542
Losses charged to allowance | (223) | (176) | (280)
Recoveries credited to allowance | 38 | 46 | 69
Net (losses) recoveries charged to allowance | (185) | (130) | (211)
Credit loss expense | 194 | 111 | 185
Balance at the end of the period | 281 | 272 | 291
Consumer | Domestic | ASU 2016-13 |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period |  |  | (225)
Foreign. | Foreign |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period | 762 | 753 | 823
Losses charged to allowance |  | (1) |
Recoveries credited to allowance |  |  | 10
Net (losses) recoveries charged to allowance |  | (1) | 10
Credit loss expense | 206 | 10 | 330
Balance at the end of the period | $ 968 | $ 762 | 753
Foreign. | Foreign | ASU 2016-13 |  |  |
Financing Receivable, Allowance for Credit Loss [Roll Forward] |  |  |
Balance at the beginning of the period |  |  | $ (410)

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- Definition Amount, after recovery, of writeoff of financing receivable, charged against allowance for credit loss. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -URI https://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 55 -Paragraph 79 -URI https://asc.fasb.org/extlink&oid=124267575&loc=SL82922352-210448 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-K (SK) -Number 229 -Section 1405 -Paragraph (a) -Subparagraph (4) + Details
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