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Loans And Related Allowances For Loan Losses (Modification of Troubled Debt Restructuring by Class) (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 USD ($) contract | Dec. 31, 2019 USD ($) contract
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 10,891 |
Temporary Rate Modification [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 1 | 2
Recorded Investment | $ | $ 46 | $ 244
Temporary Rate Modification [Member] | Residential mortgage- term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 1 | 2
Recorded Investment | $ | $ 46 | $ 244
Extension Of Maturity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 4 | 0
Recorded Investment | $ | $ 887 |
Extension Of Maturity [Member] | Acquisition and development- All other A&D [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 2 |
Recorded Investment | $ | $ 430 |
Extension Of Maturity [Member] | Residential mortgage- term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 2 |
Recorded Investment | $ | $ 457 |
Modification Of Payment And Other Terms [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 4 | 2
Recorded Investment | $ | $ 2,582 | $ 470
Modification Of Payment And Other Terms [Member] | Commercial real estate- non owner-occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Recorded Investment | $ |  | $ 0
Modification Of Payment And Other Terms [Member] | Commercial real estate- all other CRE [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 1 |
Recorded Investment | $ | $ 2,226 |
Modification Of Payment And Other Terms [Member] | Acquisition and development- All other A&D [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract |  | 1
Recorded Investment | $ | $ 0 | $ 227
Modification Of Payment And Other Terms [Member] | Residential mortgage- term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | contract | 3 | 1
Recorded Investment | $ | $ 356 | $ 243

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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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- Definition Number of financing receivables that have been modified by troubled debt restructurings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details
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- Definition Amount, after troubled debt restructuring, of modified financing receivable. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 33 -URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524 + Details
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