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Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Goodwill [Roll Forward] |  |  |
Beginning balance | $ 280,541 | $ 274,769 |
Goodwill acquired | 0 | 5,772 |
Ending balance | 280,541 | 280,541 | $ 274,769
Finite-Lived Intangible Assets [Abstract] |  |  |
Gross carrying amount | 32,460 | 36,008 |
Less: accumulated amortization | 23,533 | 24,273 |
Net carrying amount | 8,927 | 11,735 |
Impairment of goodwill | 0 | 0 |
Amortization Expense [Abstract] |  |  |
Amortization of intangible assets | 2,808 | 3,395 | 3,579
Future Amortization Expense [Abstract] |  |  |
2022 | 2,200 |  |
2023 | 1,800 |  |
2024 | 1,500 |  |
2025 | 1,200 |  |
2026 | 900 |  |
Thereafter | 1,300 |  |
Impairment of intangible assets | $ 0 | 0 | $ 0
Minimum [Member] |  |  |
Finite-Lived Intangible Assets [Abstract] |  |  |
Intangible asset useful life | 1 year |  |
Maximum [Member] |  |  |
Finite-Lived Intangible Assets [Abstract] |  |  |
Intangible asset useful life | 20 years |  |
Core Deposits Intangibles [Member] |  |  |
Finite-Lived Intangible Assets [Abstract] |  |  |
Gross carrying amount | $ 7,435 | 8,951 |
Less: accumulated amortization | 7,258 | 8,463 |
Net carrying amount | 177 | 488 |
Identified Intangible Assets [Member] |  |  |
Finite-Lived Intangible Assets [Abstract] |  |  |
Gross carrying amount | 25,025 | 27,057 |
Less: accumulated amortization | 16,275 | 15,810 |
Net carrying amount | $ 8,750 | $ 11,247 |

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