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Loans (Retail Loan Portfolio Categorized By Payment Status) (Details) - USD ($) $ in Thousands | Jun. 30, 2018 | Dec. 31, 2017
--- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | $ 2,858,843 | $ 2,694,922
Residential Real Estate Loans [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 481,841 | 457,761
Residential Real Estate Loans [Member] | Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 479,703 | 455,509
Residential Real Estate Loans [Member] | Non-Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 2,138 | 2,252
Residential Real Estate Lines [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 110,319 | 113,422
Residential Real Estate Lines [Member] | Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 110,031 | 113,018
Residential Real Estate Lines [Member] | Non-Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 288 | 404
Consumer Indirect [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 874,718 | 845,682
Consumer Indirect [Member] | Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 873,594 | 843,787
Consumer Indirect [Member] | Non-Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 1,124 | 1,895
Other Consumer [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 16,508 | 17,443
Other Consumer [Member] | Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 16,504 | 17,430
Other Consumer [Member] | Non-Performing [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | $ 4 | $ 13

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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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