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Other Intangibles (Tables) | 12 Months Ended
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Dec. 31, 2020
Goodwill and Intangible Assets Disclosure [Abstract] |
Schedule of Core Deposit and Other Intangibles | The carrying basis and accumulated amortization of recognized core deposit and other intangibles are noted below.
| 2020 |  | 2019
Gross carrying amount | $ | 102,396 |  |  | $ | 85,869 |
Core deposit intangible acquired | — |  |  | 16,527 |
Accumulated amortization | (73,421) |  |  | (67,434) |
Total core deposit and other intangibles | $ | 28,975 |  |  | $ | 34,962 |
Schedule of Estimated Future Amortization Expense | Estimated future amortization expense is summarized as follows:
| Amortization Expense
2021 | $ | 5,429 |
2022 | 5,027 |
2023 | 4,827 |
2024 | 4,241 |
2025 | 3,526 |
After 2025 | 5,925 |
| $ | 28,975 |

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