Loans, Loans Modified in a Troubled Debt Restructuring (Details) $ in Thousands	9 Months Ended
Sep. 30, 2018 USD ($) loan	Sep. 30, 2017 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	71	104
Recorded Investment	$ 10,138	$ 17,476
Unpaid Principal Balance	$ 10,353	$ 22,428
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	6	19
Recorded Investment	$ 1,954	$ 11,387
Unpaid Principal Balance	$ 1,995	$ 15,898
Commercial real estate — owner occupied
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	2
Recorded Investment	$ 0	$ 710
Unpaid Principal Balance	$ 0	$ 710
Commercial real estate — investor
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	1	0
Recorded Investment	$ 958	$ 0
Unpaid Principal Balance	$ 1,022	$ 0
Residential mortgage
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	29	48
Recorded Investment	$ 5,655	$ 4,445
Unpaid Principal Balance	$ 5,733	$ 4,638
Home equity
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	32	35
Recorded Investment	$ 1,552	$ 934
Unpaid Principal Balance	$ 1,582	$ 1,182
Other consumer
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	3	0
Recorded Investment	$ 19	$ 0
Unpaid Principal Balance	$ 21	$ 0

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=84173941&loc=SL6953676-111524

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Pre-modification amount of investment in financing receivables modified by troubled debt restructurings.

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