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Allowance for Credit Losses - By Loan Class (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Balance at the beginning of the period | $ 156,537 | $ 157,069 | $ 125,972
Losses charged to allowance | (16,359) | (36,608) | (10,184)
Recoveries credited to allowance | 3,904 | 4,274 | 6,705
Net losses charged to allowance | (12,455) | (32,334) | (3,479)
Provision (credit) charged to operations | 15,092 | 31,802 | 34,576
Balance at the end of the period | 159,174 | 156,537 | 157,069
Commercial, financial and agricultural | Commercial |  |  |
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Charge-down due to customer filing bankruptcy | 25,600 |  |
Commercial, financial and agricultural | Domestic | Commercial |  |  |
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Balance at the beginning of the period | 29,853 | 35,550 | 26,728
Losses charged to allowance | (7,673) | (34,149) | (9,664)
Recoveries credited to allowance | 3,539 | 4,079 | 5,433
Net losses charged to allowance | (4,134) | (30,070) | (4,231)
Provision (credit) charged to operations | 2,210 | 24,373 | 13,053
Balance at the end of the period | 27,929 | 29,853 | 35,550
Commercial real estate | Domestic | Commercial real estate construction development |  |  |
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Balance at the beginning of the period | 60,639 | 55,291 | 44,684
Losses charged to allowance | (8,122) | (2,228) |
Recoveries credited to allowance |  |  | 837
Net losses charged to allowance | (8,122) | (2,228) | 837
Provision (credit) charged to operations | (3,610) | 7,576 | 9,770
Balance at the end of the period | 48,907 | 60,639 | 55,291
Commercial real estate | Domestic | Commercial real estate: farmland & commercial |  |  |
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Balance at the beginning of the period | 43,990 | 42,703 | 36,474
Recoveries credited to allowance | 183 | 20 | 143
Net losses charged to allowance | 183 | 20 | 143
Provision (credit) charged to operations | 2,240 | 1,267 | 6,086
Balance at the end of the period | 46,413 | 43,990 | 42,703
Commercial real estate | Domestic | Commercial Real Estate Multifamily Receivable [Member] |  |  |
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Balance at the beginning of the period | 4,869 | 5,088 | 3,794
Provision (credit) charged to operations | 9,844 | (219) | 1,294
Balance at the end of the period | 14,713 | 4,869 | 5,088
Real estate - mortgage | Domestic | Residential First Lien |  |  |
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Balance at the beginning of the period | 5,528 | 5,812 | 4,759
Losses charged to allowance | (104) | (46) | (43)
Recoveries credited to allowance | 27 | 38 | 16
Net losses charged to allowance | (77) | (8) | (27)
Provision (credit) charged to operations | 1,274 | (276) | 1,080
Balance at the end of the period | 6,725 | 5,528 | 5,812
Real estate - mortgage | Domestic | Residential Junior Lien |  |  |
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Balance at the beginning of the period | 10,031 | 11,024 | 8,284
Losses charged to allowance | (260) |  | (298)
Recoveries credited to allowance | 133 | 123 | 260
Net losses charged to allowance | (127) | 123 | (38)
Provision (credit) charged to operations | (484) | (1,116) | 2,778
Balance at the end of the period | 9,420 | 10,031 | 11,024
Consumer | Domestic |  |  |
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Balance at the beginning of the period | 281 | 318 | 281
Losses charged to allowance | (200) | (185) | (179)
Recoveries credited to allowance | 22 | 13 | 16
Net losses charged to allowance | (178) | (172) | (163)
Provision (credit) charged to operations | 176 | 135 | 200
Balance at the end of the period | 279 | 281 | 318
Foreign | Foreign |  |  |
Rollforward of transactions in the allowance for credit loan losses by loan class |  |  |
Balance at the beginning of the period | 1,346 | 1,283 | 968
Recoveries credited to allowance |  | 1 |
Net losses charged to allowance |  | 1 |
Provision (credit) charged to operations | 3,442 | 62 | 315
Balance at the end of the period | $ 4,788 | $ 1,346 | $ 1,283

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- Definition Amount excluding accrued interest, of allowance for credit loss on financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479344/326-20-45-1 + Details
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