v3.8.0.1

Deposits (Tables) | 12 Months Ended
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Dec. 31, 2017
Deposits [Abstract] |
Summary of Outstanding Balance of Deposits and Average Rates | The following table summarizes the outstanding balance of deposits and average rates paid thereon at December 31:
|  | 2017 |  |  | 2016 |
(dollars in thousands) |  | Amount |  |  | Weighted Average Rate |  |  | Amount |  |  | Weighted Average Rate |
Demand deposits: |  |  |  |  |  |  |  |  |  |  |  |
Noninterest-bearing |  | $ | 1,097,196 |  |  |  | — |  |  | $ | 661,781 |  |  |  | — |
Interest-bearing |  |  | 235,294 |  |  |  | 0.411 | % |  |  | 194,274 |  |  |  | 0.471 | %
Money market and savings |  |  | 1,210,240 |  |  |  | 0.840 | % |  |  | 941,344 |  |  |  | 0.677 | %
Certificates of deposits |  |  | 900,797 |  |  |  | 1.189 | % |  |  | 629,396 |  |  |  | 0.589 | %
Total |  | $ | 3,443,527 |  |  |  | 0.634 | % |  | $ | 2,426,795 |  |  |  | 0.453 | %

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