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Loans Held for Investment - Schedule of Modifications to Borrowers (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 24.8 | $ 40.6 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.14% | 0.22% |
Interest Receivable | $ 107.9 |  | $ 116.8
Financing Receivable, Loan in Process | 0.5 |  | 19.1
Financing Receivable, Modified in Period, Accrued Interest, Amount | 0.1 | $ 0.2 |
Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 0.0 |
Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 21.9 | 34.7 |
Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 2.9 | 5.9 |
Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 0.0 |
Agricultural |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 6.1 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.00% | 0.85% |
Financing Receivable, Loan in Process | $ 17.2 |  | 10.4
Financing Receivable, Modified, Weighted Average Term Increase from Modification |  | 7 years |
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 | 0.0 | 6.1 |
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 |
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 |
Agricultural | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent |  | 0.00% |
Agricultural |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 2.9 | $ 1.0 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.49% | 0.14% |
Financing Receivable, Loan in Process | $ 12.3 |  | 5.2
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 7 years 6 months | 3 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 | 1.0 |
Agricultural | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 1.9 | 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 | 7 years 4 months 24 days | 0 years |
Agricultural | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 1.00% | 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 | $ 9.3 | $ 22.7 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.10% | 0.25% |
Financing Receivable, Loan in Process | $ 29.9 |  | 7.7
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 8 years 9 months 18 days | 6 years |
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 | 8.5 | 22.7 |
Commercial | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.8 | 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 | 13 years 3 months 18 days | 0 years |
Commercial | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 0.90% | 0.00% |
Total construction loans |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 11.6 |  |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 1.06% |  |
Financing Receivable, Loan in Process | $ 3.6 |  | 3.7
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 5 years 9 months 18 days | 0 years |
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 | 11.6 |  |
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 | $ 0.2 | $ 0.1 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.01% | 0.00% |
Financing Receivable, Loan in Process | $ 11.8 |  | 9.7
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 4 years | 11 years |
Residential | Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.0 |
Residential | Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.1 | 0.1 |
Residential | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.1 | 0.0 |
Residential | Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.0 | $ 0.0 |
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 | 94 years | 0 years |
Residential | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 2.00% | 0.00% |
Total real estate |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 21.1 | $ 28.9 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.16% | 0.21% |
Financing Receivable, Loan in Process | $ 62.5 |  | 31.5
Total real estate | Principal Forgiveness |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | $ 0.0 |
Total real estate | Extended Maturity [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 20.2 | 28.9 |
Total real estate | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.9 | 0.0 |
Total real estate | Principal Forgiven |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.0 | 0.0 |
Commercial |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | $ 0.8 | $ 10.7 |
Financing Receivable, Modification to Total Financing Receivables, Excluding Accrued Interest, Percent | 0.03% | 0.37% |
Financing Receivable, Loan in Process | $ 7.0 |  | 14.8
Financing Receivable, Modified, Weighted Average Term Increase from Modification | 8 years 7 months 6 days | 7 years 8 months 12 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 | 0.7 | 4.8 |
Commercial | Extended Maturity and Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Excluding Accrued Interest, Modified Period | 0.1 | 5.9 |
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 | 5 years |
Commercial | Weighted-Average Interest Rate Reduction |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Combination Term Extension and Interest Rate Reduction Percent | 0.50% | 1.00% |
Indirect consumer |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Loan in Process | $ 8.9 |  | 11.7
Credit Card Receivable [Member] |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Loan in Process | 1.8 |  | 2.2
Total consumer loans |  |  |
Financing Receivable, Modifications to Borrowers [Line Items] |  |  |
Financing Receivable, Loan in Process | $ 11.4 |  | $ 15.0

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