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Allowance For Loan Losses (Schedule of Non-Commercial Loans By Payment Performance) (Details) - USD ($) $ in Thousands | Dec. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | $ 3,616,099 | $ 3,587,608
Residential real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 1,640,396 | 1,635,338
Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 148,928 | 153,496
Consumer Loan |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 54,263 | 51,190
DDA Overdrafts |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 4,760 | 6,328
Non-commercial Loans [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 1,848,347 | 1,846,352
Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 1,844,340 | 1,841,736
Performing | Residential real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 1,636,920 | 1,630,892
Performing | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 148,397 | 153,334
Performing | Consumer Loan |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 54,263 | 51,188
Performing | DDA Overdrafts |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 4,760 | 6,322
Non-Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 4,007 | 4,616
Non-Performing | Residential real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 3,476 | 4,446
Non-Performing | Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 531 | 162
Non-Performing | Consumer Loan |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | 0 | 2
Non-Performing | DDA Overdrafts |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Loans, Total | $ 0 | $ 6

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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=118952595&loc=d3e4428-111522 + Details
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