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Interest-Bearing Deposits (Tables) | 12 Months Ended
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Dec. 31, 2018
Deposits [Abstract] |
Components of Interest-Bearing Deposits | Components of interest-bearing deposits at December 31 were as follows:
| 2018 |  | 2017
| (dollars in thousands)
Interest-bearing demand deposits | $ | 180,209 |  |  | $ | 187,281 |
Savings deposits | 3,401,354 |  |  | 3,361,840 |
Time deposits | 850,216 |  |  | 614,813 |
Total interest-bearing deposits | $ | 4,431,779 |  |  | $ | 4,163,934 |
Scheduled Maturities of Time Deposits | Included in time deposits at December 31, 2018, were certificates of deposit with the following scheduled maturities (dollars in thousands):
2019 | $ | 509,206 |
2020 | 198,525 |
2021 | 111,012 |
2022 | 20,135 |
2023 and thereafter | 11,338 |
Total | $ | 850,216 |

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