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Deposits - Schedule of Composition of Deposits (Details) - USD ($) $ in Thousands | Sep. 30, 2018 | Dec. 31, 2017
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Banking and Thrift [Abstract] |  |
Interest-bearing brokered money market deposits | $ 238,382 | $ 285,899
Customer deposits | 108,800 | 70,211
Certificates of deposit with maturities within 1 year | 530,889 | 630,879
Short-term deposits | 878,071 | 986,989
Certificates of deposit with maturities greater than 1 year and less than 5 years | 386,770 | 306,865
Total deposits | $ 1,264,841 | $ 1,293,854
Weighted average cost of funds on certificates of deposit outstanding (as a percent) | 2.16% | 1.51%
Weighted average cost of interest-bearing money market deposits (as a percent) | 2.24% | 1.49%

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- Definition The current portion, due within one year or one operating cycle, if longer, of deposits held other than customer deposits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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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://fasb.org/us-gaap/role/ref/legacyRef -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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- Definition Amount of interest-bearing domestic money market demand account deposit liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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- Definition Amount of domestic noninterest-bearing deposits held by the entity, which may include demand deposits, checking, brokered and retail deposits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -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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- Definition The weighted average interest rate for domestic certificates of deposit liabilities. + References No definition available. + Details
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- Definition The weighted average interest rate for domestic money market demand account deposit liabilities. + References No definition available. + Details
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- Definition Certificate of Deposits Maturities, Greater Than One Year And Less Than Five Years + References No definition available. + Details
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- Definition Certificate of Deposits Maturities, Year One + References No definition available. + Details
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