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Investment Securities - Schedule Of Available-For-Sale Securities Proceeds, Gains, And Losses (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2018 | Mar. 31, 2017
Marketable Securities [Abstract] |  |
Proceeds | $ 0 | $ 10,010
Gross Gains | 0 | 14
Gross Losses | $ 0 | $ 0

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- Definition Debt Securities, Available-for-sale, Realized Gain + References No definition available. + Details
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- Definition Debt Securities, Available-for-sale, Realized Loss + References No definition available. + Details
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- References No definition available. + Details
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- Definition The cash inflow associated with the sale of debt securities classified as available-for-sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=82896770&loc=d3e26853-111562 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3179-108585 + Details
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