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Time Deposit Maturities (Tables) | 12 Months Ended
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Dec. 31, 2018
Maturities of Time Deposits [Abstract] |
Schedule of Time Deposits Included in Interest-Bearing Deposits |
(Dollars in thousands) |  |
2019 |  | $ | 2,794,861 |
2020 |  | 690,119 |
2021 |  | 130,454 |
2022 |  | 396,340 |
2023 |  | 75,270 |
2024 and after |  | 18,733 |
Total |  | $ | 4,105,777 |

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