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Acquisition (Tables) | 9 Months Ended
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Sep. 30, 2025
Business Combination [Abstract] |
Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] | The following table summarizes the estimated fair value of the assets acquired and liabilities assumed as of the date of the acquisition:
| Net Assets Acquired at Fair Value
| (Dollars in thousands)
Assets |
Cash | $ | 123,638 |
Investments | 590,267 |
Loans | 3,913,112 |
Allowance for credit losses on purchased credit deteriorated (“PCD”) loans | (9,020) |
Premises and equipment | 35,706 |
Goodwill | 98,302 |
Core deposit and other intangibles | 137,503 |
Other assets | 164,908 |
Total assets acquired | 5,054,416 |
Liabilities |
Deposits | 4,362,710 |
Borrowings | 62,472 |
Subordinated debt | 59,974 |
Other liabilities | 66,116 |
Total liabilities assumed | 4,551,272 |
Purchase price | $ | 503,144 |
Business Combination, Pro Forma Information [Table Text Block] | The selected pro forma financial information is presented for illustrative purposes only and is not necessarily indicative of the financial results of the combined companies had the acquisition actually been completed at the beginning of the period presented, nor does it indicate future results for any other interim or full-year period.
|  | Three Months Ended |  | Nine Months Ended
|  | September 30 |  | September 30
|  | 2025 |  | 2024 |  | 2025 |  | 2024
|  | (Dollars in thousands)
Net interest income |  | $ | 203,344 |  |  | $ | 179,722 |  |  | $ | 575,576 |  |  | $ | 526,439 |
Net income |  | $ | 34,262 |  |  | $ | 52,934 |  |  | $ | 129,565 |  |  | $ | 170,053 |
Purchased Credit Impaired Loans Associated with Acquisition [Table Text Block] | For PCD loans acquired from Enterprise, a reconciliation of the difference between the purchase price and par value of the assets acquired is presented below:
|  | As of July 1, 2025
|  | (Dollars in thousands)
Gross amortized cost basis at July 1, 2025 |  | 406,135 |
Allowance for credit losses on PCD loans |  | (9,020) |
Interest and liquidity discount |  | (10,444) |
Basis in PCD loans at acquisition - estimated fair value |  | 386,671 |

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