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Derivative Instruments (Change In Fair Value Of Derivative Instruments) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Not Designated as Hedging Instrument | Derivative assets | Other Income |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Change in Fair Value | $ (3,379) | $ 3,904 | $ 1,030
Not Designated as Hedging Instrument | Derivative liabilities | Other Income |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Change in Fair Value | 3,379 | (3,904) | (1,030)
Not Designated as Hedging Instrument | Derivative liabilities | Other Expense |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Change in Fair Value | 86 | (52) | 0
Designated as Hedging Instrument | Derivative assets | Other Expense |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Change in Fair Value | 8 | 0 | 0
Designated as Hedging Instrument | Derivative liabilities | Other Expense |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Change in Fair Value | 0 | 13 | (12)
Loans Receivable | Designated as Hedging Instrument | Derivative assets |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Change in Fair Value | $ 38 | $ (36) | $ 25

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- Definition Amount of gain (loss) from the increase (decrease) in fair value of derivative and nonderivative instruments designated as fair value hedging instruments recognized in the income statement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6886632&loc=d3e76258-113986 + 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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