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Commitments and Contingencies (Tables) | 9 Months Ended
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Sep. 30, 2025
Commitments and Contingencies Disclosure [Abstract] |
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block] | The following table summarizes the above financial instruments at the dates indicated:
| September 30, 2025 |  | December 31, 2024
| (Dollars in thousands)
Commitments to extend credit | $ | 6,134,484 |  |  | $ | 4,663,314 |
Loan exposures sold with recourse | 132,878 |  |  | 141,151 |
Standby letters of credit | 39,989 |  |  | 24,863 |
Deferred standby letter of credit fees | 203 |  |  | 213 |

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- Definition Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined) which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-10 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 942 -SubTopic 825 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478898/942-825-50-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 825 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482907/825-10-50-11 + Details
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