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Estimated Fair Values (Fair Value Option) (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Fair Value, Option, Changes in Fair Value, Gain (Loss) | $ 50 | $ 2,900 | $ (2,400)
Loans Held For Sale |  |  |
Fair Value, Option, Quantitative Disclosures [Line Items] |  |  |
Fair Value Of Items For Which Fair Value Option Was Elected Assets | 45,505 | 51,179 |
Aggregate Unpaid Principal Balance Of Items For Which Fair Value Option Was Elected Assets | 44,073 | 49,796 |
Fair Value Option Aggregate Difference Assets | $ 1,432 | $ 1,383 |

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- Definition Represents the aggregate unpaid principal balance of assets for which the fair value option was elected. + References No definition available. + Details
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- Definition Represents the fair value of assets for which the fair value option was elected. + References No definition available. + Details
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- Definition For assets for which the fair value option has been elected, this item represents the difference between the fair value and the aggregate unpaid principal balance for those assets. + References No definition available. + Details
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- Definition For each line item in the statement of financial position, the amounts of gains and losses from fair value changes included in earnings. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14172-108612 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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