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Deposits (Tables) | 12 Months Ended
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Dec. 31, 2017
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, |
|  | 2017 |  |  | 2016 |
|  | Amount |  |  | Percent |  |  | Amount |  |  | Percent |
|  | (Dollars in thousands) |
Noninterest-bearing deposits |  | $ | 3,846,436 |  |  |  | 58.75% |  |  | $ | 3,673,541 |  |  |  | 58.22% |
Interest-bearing deposits: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investment checking |  |  | 433,971 |  |  |  | 6.63% |  |  |  | 407,058 |  |  |  | 6.45% |
Money market |  |  | 1,517,050 |  |  |  | 23.17% |  |  |  | 1,504,021 |  |  |  | 23.84% |
Savings |  |  | 364,049 |  |  |  | 5.56% |  |  |  | 342,236 |  |  |  | 5.42% |
Time deposits |  |  | 385,347 |  |  |  | 5.89% |  |  |  | 382,824 |  |  |  | 6.07% |
Total deposits |  | $ | 6,546,853 |  |  |  | 100.00% |  |  | $ | 6,309,680 |  |  |  | 100.00% |
Scheduled Maturities of Time Certificates of Deposit | At December 31, 2017, the scheduled maturities of time certificates of deposit are as follows.
|  | December 31, 2017 |
Year of maturity: |  | (Dollars in thousands) |
2018 |  | $ | 354,055 |
2019 |  |  | 14,173 |
2020 |  |  | 7,196 |
2021 |  |  | 1,562 |
2022 and thereafter |  |  | 8,361 |
Total |  | $ | 385,347 |

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- Definition Tabular disclosure of time deposit liability maturities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -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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