Loans, Loans Modified in a Troubled Debt Restructuring (Details) $ in Thousands	6 Months Ended
Jun. 30, 2017 USD ($) loan	Jun. 30, 2016 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	88	97
Recorded Investment	$ 35,020	$ 8,103
Unpaid Principal Balance	$ 56,700	$ 8,527
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	24	11
Recorded Investment	$ 30,935	$ 2,608
Unpaid Principal Balance	$ 52,260	$ 2,676
Commercial real estate — owner occupied
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	2	1
Recorded Investment	$ 716	$ 120
Unpaid Principal Balance	$ 716	$ 126
Residential mortgage
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	36	48
Recorded Investment	$ 2,695	$ 3,942
Unpaid Principal Balance	$ 2,805	$ 4,171
Home equity
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	26	37
Recorded Investment	$ 674	$ 1,433
Unpaid Principal Balance	$ 919	$ 1,554

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-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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Post-modification amount of investment in financing receivables modified by troubled debt restructurings.

+ References

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- Definition

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

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