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Derivatives (Fair Value Hedges on Income Statement) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2019 | Dec. 31, 2018
Derivative Instruments, Gain (Loss) [Line Items] |  |
Reported interest income on tax-exempt securities | $ 1,518 | $ 587
Designated as Hedging Instrument [Member] | Fair Value Hedging [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Interest income on tax-exempt securities | 1,741 | 1,145
Effects of fair value hedge relationships | (223) | (51)
Reported interest income on tax-exempt securities | 1,518 | 1,094
Interest Rate Swap [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) on fair value hedging relationship | (3,446) | (1,174)
Interest Rate Swap [Member] | Designated as Hedging Instrument [Member] |  |
Derivative Instruments, Gain (Loss) [Line Items] |  |
Gain (loss) on fair value hedging relationship | $ 3,446 | $ 1,174

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- Definition Interest Income, Securities, Operating, Tax Exempt, Gross + References No definition available. + Details
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- Definition Amount of increase (decrease) in the fair value of derivatives recognized in the income statement. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4A -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5618551-113959 + Details
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- Definition Total amount of gain (loss) derived from fair value hedges recognized in earnings in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624171-113959 + Details
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