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Loans Held for Investment - Schedule of Modifications to Borrowers (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Mar. 31, 2023 | Dec. 31, 2023
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 40.6 | $ 27.2 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.22% | 0.15% |
Interest Receivable | $ 125.5 |  | $ 129.1
Financing Receivable, Loan in Process | 19.1 |  |
Financing Receivable, Modified in Period, Accrued Interest, Amount | 0.2 | $ 0.3 |
Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 1.7 |
Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 34.7 | 25.5 |
Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 5.9 | 0.0 |
Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 1.6 |
Agricultural |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 6.1 | $ 1.2 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.85% | 0.16% |
Financing Receivable, Loan in Process | $ 5.7 |  | 1.8
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | 0.00% | 0.00% |
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 7 years | 7 years 2 months 12 days |
Agricultural | Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.0 |
Agricultural | Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 6.1 | 1.2 |
Agricultural | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 0.0 |
Agricultural | Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.0 |
Agricultural | Weighted-Average Months of Term Extension |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period, Term Extension, Weighted-Average Months | 0 years | 0 years |
Agricultural | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 0.00% | 0.00% |
Agricultural |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 1.0 | $ 17.8 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.14% | 2.70% |
Financing Receivable, Loan in Process | $ 19.2 |  | 3.1
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | 0.00% | 0.00% |
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 3 years 3 months 18 days | 9 years 3 months 18 days |
Agricultural | Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.0 |
Agricultural | Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 1.0 | 17.8 |
Agricultural | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 0.0 |
Agricultural | Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.0 |
Agricultural | Weighted-Average Months of Term Extension |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period, Term Extension, Weighted-Average Months | 0 years | 0 years |
Agricultural | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 0.00% | 0.00% |
Other, including overdrafts |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Loan in Process | $ 0.0 |  | 0.0
Commercial |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 22.7 | $ 5.3 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.25% | 0.06% |
Financing Receivable, Loan in Process | $ 1.7 |  | 18.8
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | 0.00% | 0.00% |
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 6 years | 6 years 1 month 6 days |
Commercial | Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 1.6 |
Commercial | Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 22.7 | 3.7 |
Commercial | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 0.0 |
Commercial | Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 1.3 |
Commercial | Weighted-Average Months of Term Extension |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period, Term Extension, Weighted-Average Months | 0 years | 0 years |
Commercial | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 0.00% | 0.00% |
Total construction loans |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period |  | $ 0.2 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent |  | 0.01% |
Financing Receivable, Loan in Process | $ 2.2 |  | 3.5
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | 0.00% | 0.00% |
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 0 years | 12 years 4 months 24 days |
Total construction loans | Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period |  | $ 0.0 |
Total construction loans | Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period |  | 0.2 |
Total construction loans | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period |  | 0.0 |
Total construction loans | Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.0 |
Total construction loans | Weighted-Average Months of Term Extension |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period, Term Extension, Weighted-Average Months | 0 years | 0 years |
Total construction loans | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 0.00% | 0.00% |
Residential |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.1 | $ 0.1 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.00% | 0.00% |
Financing Receivable, Loan in Process | $ 14.4 |  | 15.6
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | 0.00% | 0.00% |
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 11 years | 37 years 7 months 6 days |
Residential | Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.1 |
Residential | Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.1 | 0.0 |
Residential | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 0.0 |
Residential | Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.3 |
Residential | Weighted-Average Months of Term Extension |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period, Term Extension, Weighted-Average Months | 0 years | 0 years |
Residential | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 0.00% | 0.00% |
Total real estate |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 28.9 | $ 6.8 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.21% | 0.05% |
Financing Receivable, Loan in Process | $ 24.0 |  | 39.7
Total real estate | Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | $ 1.7 |
Total real estate | Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 28.9 | 5.1 |
Total real estate | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 0.0 |
Total real estate | Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 1.6 |
Commercial |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 10.7 | $ 2.6 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.37% | 0.09% |
Financing Receivable, Loan in Process | $ 11.6 |  | 15.9
Financing Receivable, Modified, Weighted Average Interest Rate Decrease from Modification | 0.00% | 0.00% |
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 7 years 8 months 12 days | 10 years 10 months 24 days |
Commercial | Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.0 |
Commercial | Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 4.8 | 2.6 |
Commercial | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 5.9 | 0.0 |
Commercial | Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.0 |
Commercial | Weighted-Average Months of Term Extension |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period, Term Extension, Weighted-Average Months | 5 years | 0 years |
Commercial | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 1.00% | 0.00% |
Indirect consumer |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Loan in Process | $ 8.3 |  | 10.6
Direct and advance lines |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Loan in Process | 1.3 |  | 1.1
Credit Card Receivable [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Loan in Process | 1.4 |  | 1.8
Total consumer loans |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Loan in Process | $ 11.0 |  | $ 13.5

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