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Deposits (Tables) | 12 Months Ended
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Dec. 31, 2018
Banking and Thrift [Abstract] |
Composition of Deposits | The composition of deposits is summarized for the periods presented in the table below.
|  | As of December 31, |
|  | 2018 |  |  | 2017 |
|  | Amount |  |  | Percent |  |  | Amount |  |  | Percent |
|  | (Dollars in thousands) |
Noninterest-bearing deposits |  | $ | 5,204,787 |  |  |  | 58.96 | % |  | $ | 3,846,436 |  |  |  | 58.75 | %
Interest-bearing deposits: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment checking |  |  | 460,972 |  |  |  | 5.22 | % |  |  | 433,971 |  |  |  | 6.63 | %
Money market |  |  | 2,236,018 |  |  |  | 25.33 | % |  |  | 1,517,050 |  |  |  | 23.17 | %
Savings |  |  | 393,769 |  |  |  | 4.46 | % |  |  | 364,049 |  |  |  | 5.56 | %
Time deposits |  |  | 531,944 |  |  |  | 6.03 | % |  |  | 385,347 |  |  |  | 5.89 | %
Total deposits |  | $ | 8,827,490 |  |  |  | 100.00 | % |  | $ | 6,546,853 |  |  |  | 100.00 | %
Scheduled Maturities of Time Certificates of Deposit | At December 31 , 2018 , the scheduled maturities of time certificates of deposit are as follows.
|  | December 31, 2018 |
Year of maturity: |  | (Dollars in thousands) |
2019 |  | $ | 398,735 |
2020 |  |  | 70,898 |
2021 |  |  | 46,710 |
2022 |  |  | 5,320 |
2023 and thereafter |  |  | 10,281 |
Total |  | $ | 531,944 |

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- Definition Tabular disclosure of time deposit liability maturities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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