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Deposits (Details) - USD ($) $ in Thousands | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2015 | Dec. 31, 2014
Deposits [Line Items] |  |
Deposits | $ 1,471,068 | $ 1,438,268
Average balance, deposits | $ 1,468,716 | $ 1,208,003
Deposits, weighted average interest rate during the period | 0.70% | 0.78%
Non-interest-bearing transaction accounts |  |
Deposits [Line Items] |  |
Deposits | $ 221,064 | $ 204,328
Average balance, deposits | $ 202,905 | $ 154,687
Deposits, weighted average interest rate during the period | 0.00% | 0.00%
Interest-bearing transaction accounts |  |
Deposits [Line Items] |  |
Deposits | $ 107,318 | $ 104,199
Average balance, deposits | $ 106,442 | $ 83,508
Deposits, weighted average interest rate during the period | 0.23% | 0.22%
Money market accounts |  |
Deposits [Line Items] |  |
Deposits | $ 588,240 | $ 575,766
Average balance, deposits | $ 615,485 | $ 493,322
Deposits, weighted average interest rate during the period | 0.55% | 0.52%
Certificates of deposit |  |
Deposits [Line Items] |  |
Deposits | $ 109,966 | $ 126,635
Average balance, deposits | $ 117,748 | $ 60,284
Deposits, weighted average interest rate during the period | 0.75% | 0.89%
Wholesale deposits |  |
Deposits [Line Items] |  |
Deposits | $ 444,480 | $ 427,340
Average balance, deposits | $ 426,136 | $ 416,202
Deposits, weighted average interest rate during the period | 1.36% | 1.49%

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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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 9 + Details
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