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Allowance For Loan Losses (Schedule Of Non-Commercial Loans By Payment Performance) (Details) - USD ($) $ in Thousands | Sep. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | $ 3,582,571 | $ 3,587,608
Residential real estate |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 1,643,416 | 1,635,338
Residential real estate | Performing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 1,640,496 | 1,630,892
Residential real estate | Non-Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 2,920 | 4,446
Home equity |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 150,808 | 153,496
Home equity | Performing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 150,298 | 153,334
Home equity | Non-Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 510 | 162
Consumer |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 54,799 | 51,190
Consumer | Performing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 54,799 | 51,188
Consumer | Non-Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 0 | 2
DDA overdrafts |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 4,638 | 6,328
DDA overdrafts | Performing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 4,638 | 6,322
DDA overdrafts | Non-Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 0 | 6
Total |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 1,853,661 | 1,846,352
Total | Performing [Member] |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | 1,850,231 | 1,841,736
Total | Non-Performing |  |
Financing Receivable, Credit Quality Indicator [Line Items] |  |
Total | $ 3,430 | $ 4,616

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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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