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Allowance for Credit Losses - Non-accrual Basis By Loan Class (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | $ 100,519 | $ 47,170
Non-accrual loans with no credit allowance | 44,234 | 963
Commercial, financial and agricultural | Domestic | Commercial |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 1,282 | 30,872
Non-accrual loans with no credit allowance | 398 | 122
Commercial, financial and agricultural | Domestic | Commercial real estate: farmland & commercial |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 50,831 | 299
Non-accrual loans with no credit allowance | 18,486 | 299
Commercial, financial and agricultural | Domestic | Commercial real estate: multifamily |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 38,246 | 96
Non-accrual loans with no credit allowance | 25,142 | 96
Real Estate - construction | Domestic | Commercial Real Estate: other construction and land development |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 10,027 | 15,701
Non-accrual loans with no credit allowance | 75 | 244
Real estate - mortgage | Domestic | Residential First Lien |  |
Loan loss allowances, financing receivable past due |  |
Non-accrual loans, total | 133 | 202
Non-accrual loans with no credit allowance | $ 133 | $ 202

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