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Goodwill and Other Intangible Assets - Summary of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands | Sep. 30, 2024 | Dec. 31, 2023
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Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Amount | $ 90,162 | $ 90,162
Accumulated Amortization | (74,924) | (71,367)
Net Carrying Amount | 15,238 | 18,795
Core deposit intangibles |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Amount | 82,492 | 82,492
Accumulated Amortization | (71,046) | (68,383)
Net Carrying Amount | 11,446 | 14,109
Customer relationship intangible |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Amount | 7,670 | 7,670
Accumulated Amortization | (3,878) | (2,984)
Net Carrying Amount | $ 3,792 | $ 4,686

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