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v3.26.1

Mergers and Acquisitions - Narrative (Details) |  | 3 Months Ended |
--- | --- | --- | ---
Apr. 01, 2025 USD ($) bankingLocation shares | Mar. 31, 2026 USD ($) | Mar. 31, 2025 USD ($) | Dec. 31, 2025 USD ($)
Business Combination [Line Items] |  |  |  |
Merger and conversion related expenses |  | $ 0 | $ 791,000 |
Goodwill resulting from merger |  | 1,406,667,000 | $ 988,898,000 | $ 1,405,840,000
Goodwill, measurement period adjustment |  | $ 827,000 |  |
The First |  |  |  |
Business Combination [Line Items] |  |  |  |
Transaction value | $ 1,052,690,000 |  |  |
Shares issued to common shareholders (in shares) | shares | 30,811,851 |  |  |
Cash settlement for stock options | $ 1,869,000 |  |  |
Voting interest acquired (percent) | 100.00% |  |  |
Number of locations acquired | bankingLocation | 116 |  |  |
Intangible assets, including goodwill | $ 584,499,000 |  |  |
Goodwill resulting from merger | 418,196,000 |  |  |
Core deposit intangible | 165,476,000 |  |  |
Customer relationship intangible | 5,866,000 |  |  |
Goodwill, measurement period adjustment | 827,000 |  |  |
Goodwill, Prior to measurement period adjustment | $ 418,196,000 |  |  |
Weighted average useful life (in years) | 10 years |  |  |
Long-term debt | $ 419,165,000 |  |  |
The First | Subordinated notes |  |  |  |
Business Combination [Line Items] |  |  |  |
Long-term debt | 95,262,000 |  |  |
The First | Junior subordinated debentures |  |  |  |
Business Combination [Line Items] |  |  |  |
Long-term debt | 25,653,000 |  |  |
The First | Federal Home Loan Bank Advances |  |  |  |
Business Combination [Line Items] |  |  |  |
Short-term borrowings | 298,250,000 |  |  |
Fair Value of Net Assets Acquired |  |  |  |
Business Combination [Line Items] |  |  |  |
Goodwill resulting from merger | 419,023,000 |  |  |
Long-term debt | $ 419,165,000 |  |  |

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