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Loans (Commercial Loan Portfolio Categorized By Internally Assigned Asset Classification) (Details) - USD ($) $ in Thousands | Dec. 31, 2016 | Dec. 31, 2015
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Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | $ 2,305,071 | $ 2,052,600
Commercial Business [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 349,079 | 313,475
Commercial Business [Member] | Uncriticized [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 326,254 | 298,413
Commercial Business [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 10,377 | 4,916
Commercial Business [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 12,448 | 10,146
Commercial Business [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans |  |
Commercial Mortgage [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 671,552 | 567,481
Commercial Mortgage [Member] | Uncriticized [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 652,550 | 551,603
Commercial Mortgage [Member] | Special Mention [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 12,690 | 9,015
Commercial Mortgage [Member] | Substandard [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans | 6,312 | 6,863
Commercial Mortgage [Member] | Doubtful [Member] |  |
Financing Receivable, Recorded Investment [Line Items] |  |
Total Loans |  |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
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