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Derivative Instruments (Change In Fair Value Of Derivative Instruments) (Details) - Non-hedging interest rate derivatives: - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Other Assets | Other Income | Customer Back-to-Back Swap Program |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Change in Fair Value Non-Hedging Interest Rate Derivatives: | $ 4,854 | $ 3,807 | $ (18,140) | $ 41,718
Other Liabilities | Other Income | Customer Back-to-Back Swap Program |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Change in Fair Value Non-Hedging Interest Rate Derivatives: | (4,854) | (3,807) | 18,140 | (41,718)
Other Liabilities | Other Expense |  |  |  |
Derivatives, Fair Value [Line Items] |  |  |  |
Change in Fair Value Non-Hedging Interest Rate Derivatives: | $ (185) | $ 10 | $ 352 | $ 183

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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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