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Derivative Instruments (Change In Fair Value Of Derivative Instruments) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Derivative assets | Other Income |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Change in Fair Value | $ 27,240 | $ 4,342 | $ 1,316
Derivative liabilities | Other Income |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Change in Fair Value | (27,240) | (4,342) | (1,316)
Derivative liabilities | Other Expense |  |  |
Derivatives, Fair Value [Line Items] |  |  |
Change in Fair Value | $ 206 | $ 165 | $ 50

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 25 -Section 50 -Paragraph 1 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121577467&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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