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Loans, Allowance for Loan Losses and Credit Quality (Summary of Nonaccrual Loans) (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Financing Receivable Impaired [Line Items] |  |
Tdrs Recorded Investment On Nonaccrual Status | $ 5,910 | $ 5,225
Financing Receivable, Recorded Investment, Nonaccrual Status | 24,791 | 27,690
Commercial and Industrial [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 3,065 | 3,699
Commercial Real Estate [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 7,399 | 7,856
Construction Loans [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 0 | 304
Small Business [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 288 | 239
Residential Real Estate [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 7,684 | 8,795
Consumer Home Equity [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | 6,311 | 6,742
Consumer - Other [Member] |  |
Financing Receivable Impaired [Line Items] |  |
Financing Receivable, Recorded Investment, Nonaccrual Status | $ 44 | $ 55

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- Definition Recorded investment in financing receivables that are on nonaccrual status as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Recorded Investment -URI http://asc.fasb.org/extlink&oid=65880944 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 7 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5111-111524 + Details
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