Loans, Troubled Debt Restructurings Subsequent Default (Details) $ in Thousands	9 Months Ended
Sep. 30, 2017 USD ($) loan	Sep. 30, 2016 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	36	49
Recorded Investment \| $	$ 1,707	$ 3,507
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	1	0
Recorded Investment \| $	$ 1	$ 0
Residential mortgage
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	21	36
Recorded Investment \| $	$ 1,335	$ 3,310
Home equity
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	14	12
Recorded Investment \| $	$ 371	$ 182
Other consumer
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	1
Recorded Investment \| $	$ 0	$ 15

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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://www.xbrl.org/2003/role/presentationRef
-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

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- Definition

Amount of investment related to financing receivables modified by troubled debt restructurings within the previous 12 months, for which there was a payment default.

+ References

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