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Loans, Troubled Debt Restructurings Subsequent Default (Details) $ in Thousands | 6 Months Ended
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Jun. 30, 2018 USD ($) loan | Jun. 30, 2017 USD ($) loan
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | loan | 32 | 26
Recorded Investment | $ | $ 3,628 | $ 1,212
Commercial and industrial |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | loan | 3 | 0
Recorded Investment | $ | $ 0 | $ 0
Residential mortgage |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | loan | 8 | 17
Recorded Investment | $ | $ 2,219 | $ 941
Home equity |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Loans | loan | 21 | 9
Recorded Investment | $ | $ 1,409 | $ 271

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- Definition Number of financing receivables that have been modified by troubled debt restructurings within the previous 12 months and for which there was a payment default. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953682-111524 + Details
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