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Allowance For Loan Losses (Schedule of Non-Commercial Loans By Payment Performance) (Details) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | $ 3,587,608 | $ 3,127,410
Residential real estate |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 1,656,989 | 1,468,278
Home equity |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 153,496 | 139,499
Consumer Loan |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 51,190 | 29,162
DDA Overdrafts |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 6,328 | 4,411
Non-commercial Loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 1,868,003 | 1,641,350
Performing |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 1,863,387 | 1,638,257
Performing | Residential real estate |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 1,652,543 | 1,465,445
Performing | Home equity |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 153,334 | 139,239
Performing | Consumer Loan |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 51,188 | 29,162
Performing | DDA Overdrafts |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 6,322 | 4,411
Non-Performing |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 4,616 | 3,093
Non-Performing | Residential real estate |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 4,446 | 2,833
Non-Performing | Home equity |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 162 | 260
Non-Performing | Consumer Loan |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | 2 | 0
Non-Performing | DDA Overdrafts |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Loans, Total | $ 6 | $ 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=82891408&loc=d3e4428-111522 + Details
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