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Deposits (Details) - USD ($) $ in Thousands | 3 Months Ended |
--- | --- | ---
Mar. 31, 2018 | Mar. 31, 2017 | Dec. 31, 2017
Deposits [Line Items] |  |  |
Deposits | $ 1,371,158 |  | $ 1,394,331
Average balance, deposits | $ 1,422,883 | $ 1,459,067 |
Deposits, weighted average interest rate during the period | 0.80% | 0.74% |
Non-interest-bearing transaction accounts |  |  |
Deposits [Line Items] |  |  |
Deposits | $ 240,422 |  | 277,445
Average balance, deposits | $ 228,557 | $ 230,907 |
Deposits, weighted average interest rate during the period | 0.00% | 0.00% |
Interest-bearing transaction accounts |  |  |
Deposits [Line Items] |  |  |
Deposits | $ 262,766 |  | 217,625
Average balance, deposits | $ 297,730 | $ 226,540 |
Deposits, weighted average interest rate during the period | 0.55% | 0.59% |
Money market accounts |  |  |
Deposits [Line Items] |  |  |
Deposits | $ 498,310 |  | 515,077
Average balance, deposits | $ 514,837 | $ 583,241 |
Deposits, weighted average interest rate during the period | 0.66% | 0.47% |
Certificates of deposit |  |  |
Deposits [Line Items] |  |  |
Deposits | $ 77,107 |  | 76,199
Average balance, deposits | $ 80,904 | $ 56,667 |
Deposits, weighted average interest rate during the period | 1.18% | 1.00% |
Wholesale deposits |  |  |
Deposits [Line Items] |  |  |
Deposits | $ 292,553 |  | $ 307,985
Average balance, deposits | $ 300,855 | $ 361,712 |
Deposits, weighted average interest rate during the period | 1.77% | 1.70% |

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- Definition The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.12) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
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