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Allowance For Loan Losses (Schedule of Non-Commercial Loans By Payment Performance) (Details) - USD ($) $ in Thousands | Dec. 31, 2020 | Dec. 31, 2019
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | $ 3,622,119 | $ 3,616,099
Residential Real Estate [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 1,587,694 | 1,640,396
Financing Receivable, before Allowance for Credit Loss | 1,587,694 | 1,640,396
Home Equity Line of Credit [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 136,469 | 148,928
Financing Receivable, before Allowance for Credit Loss |  | 148,928
Consumer Loan |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 47,688 | 54,263
Financing Receivable, before Allowance for Credit Loss | 47,688 | 54,263
DDA Overdrafts |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | $ 2,497 | 4,760
Financing Receivable, before Allowance for Credit Loss |  | 4,760
Non-commercial Loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 1,848,347
Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 1,844,340
Performing | Residential Real Estate [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 1,636,920
Performing | Home Equity Line of Credit [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 148,397
Performing | Consumer Loan |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 54,263
Performing | DDA Overdrafts |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 4,760
Non-Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 4,007
Non-Performing | Residential Real Estate [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 3,476
Non-Performing | Home Equity Line of Credit [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 531
Non-Performing | Consumer Loan |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | 0
Non-Performing | DDA Overdrafts |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss |  | $ 0

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- Definition Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=121593590&loc=d3e4428-111522 + Details
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