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Derivative Instruments (Fair Value Of Derivative Instruments) (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Customer Counterparties Loan Interest Rate Swap Assets | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amount	$ 132,146	$ 225,480
Fair Value	3,131	4,877
Customer Counterparties Loan Interest Rate Swap Liabilities | Other Assets
Derivatives, Fair Value [Line Items]
Notional Amount	372,223	314,450
Fair Value	13,774	9,513
Financial Institution Counterparties Loan Interest Rate Swap Asset | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	403,500	320,949
Fair Value	13,902	9,591
Financial Institution Counterparties Loan Interest Rate Swap Liabilities | Other Liabilities
Derivatives, Fair Value [Line Items]
Notional Amount	132,146	218,924
Fair Value	$ 3,131	$ 4,877

X

- Definition

Aggregate notional amount specified by the derivative(s). Expressed as an absolute value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 12
-Section 13
-Sentence Column B

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X

- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=109250915&loc=d3e13433-108611

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- Definition

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+ References

No definition available.

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