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Goodwill and Other Intangible Assets - Summary of Finite-Lived Intangible Assets (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Amount | $ 84,962 | $ 84,962
Accumulated Amortization | (62,231) | (60,864)
Net Carrying Amount | 22,731 | 24,098
Core deposit intangibles |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Amount | 82,492 | 82,492
Accumulated Amortization | (60,720) | (59,399)
Net Carrying Amount | 21,772 | 23,093
Customer relationship intangible |  |
Finite-Lived Intangible Assets, Net [Abstract] |  |
Gross Carrying Amount | 2,470 | 2,470
Accumulated Amortization | (1,511) | (1,465)
Net Carrying Amount | $ 959 | $ 1,005

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