Loans and Allowance For Credit Losses Loans (Schedule of Defaults During Stated Period Of Trouble Debt Restructurings) (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021 USD ($) loan	Sep. 30, 2020 USD ($) loan	Sep. 30, 2021 USD ($) contract	Sep. 30, 2020 USD ($) contract
Financing Receivable, Impaired [Line Items]
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	2	0	2
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	$ 0	$ 410	$ 0	$ 410
Commercial real estate owner occupied other [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	1	0	1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	$ 0	$ 361	$ 0	$ 361
Residential 1-4 family real estate personal residence [Member]
Financing Receivable, Impaired [Line Items]
Financing Receivable, Troubled Debt Restructuring, Subsequent Default, Number of Contracts	0	1	0	1
Financing Receivable, Troubled Debt Restructuring, Subsequent Default	$ 0	$ 49	$ 0	$ 49

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- Definition

Number of financing receivable contracts modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524

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Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524

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